Answer:
lol why is this posted in mathematics
The Martinez family is having their swimming pool filled with water by a professional company. A tanker truck can fill the pool at a rate of 150 gallons per minute. Use Scratchpad to show your work for the questions below. a. It took 30 minutes to empty the tank of the truck. How many gallons of water were in the tank? gallons Question 2 b. The pool holds 10,500 gallons of water. Ignoring the time it takes to refill the tank of the truck, how many minutes will it take to fill the pool with water? minutes
Answer:
Question 1, it was 4500 gallons of water in the tank
Question 2, it will take 70 minutes to fill the pool with water
Step-by-step explanation:
Question 1 explanation, just multiply 150 times the minutes
A tanker truck can fill the pool at a rate of 150 gallons per minute. It took 30 minutes to empty the tank of the truck. 4500 gallons of water is in the tank. If pool holds 10,500 gallons of water then it takes 2100 minutes of time to fill.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that,
A tanker truck can fill the pool at a rate of 150 gallons per minute.
It took 30 minutes to empty the tank of the truck.
Now we need to find number of gallons of water in the tank.
So to find it we have to multiply 150 with 30
4500 gallons of water were in the tank.
and the pool holds 10,500 gallons of water
Let us formulate a equation
Apply cross multiplication
150/30=10500/x
150x=315000
=2100 minutes
So 2100 minutes will it take to fill the pool with water.
Hence if a tanker truck can fill the pool at a rate of 150 gallons per minute. It took 30 minutes to empty the tank of the truck. 4500 gallons of water is in the tank. If pool holds 10,500 gallons of water then it takes 2100 minutes of time to fill.
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x + y = 7, for x
....
Answer:
x = -y + 7
or
x = 7 - y
Step-by-step explanation:
x + y = 7
Step 1: Subtract y from both sides to get x alone.
x + y = 7
-y -y
x = 7 - y
Since x is alone and y is a variable & not a number, there's nothing else to do to the equation.
Hey there!☺
[tex]Answer:\boxed{x=-y+7}[/tex]
[tex]Explanation:[/tex]
[tex]x+y=7[/tex]
The first/last step we have is to add -y to both sides.
[tex]x+y+-y=7+-y\\x=-y+7[/tex]
[tex]x=-y+7[/tex] is your answer.
Hope this helps!☺
what is 4/10 plus 5/100?
Answer:
0.45
Step-by-step explanation:
4/10 is 0.4
and
5/100 is 0.05
the measure of angle b is one-half the measure of its complement. What is the measure of b
Answer:
b = 30 degrees.
Step-by-step explanation:
Two angles are said to be complement of each other if their sum is 90 degrees
________________________
given
one angle is b
let other angle be x
given that angle b is one-half the measure of its complement
thus, mathematically we can the above statement as
b = 1/2(x)
now sum of both the angle will be 90 degrees as they are complementary
b + x = 90
using b = 1/2(x)
=> 1/2(x) + x = 90
=> x/2 + x = 90
=> (x +2x)/2 = 90
=> 3x = 180
=> x = 180/3 = 60
thus,
b = 1/2(x) = 1/2(60) = 30
thus, measure of angle b is 30 degrees.
Can someone help me please (Correct answer gets brainliest)
Question:Which expression is equivalent to 13x(11+5)
A: 13 x 11 + 13 x 5
B: 13 x 16
C: 13 x 55
D: 13 x 5 + 13 x 11
Answer:
If you multiply the 13×(11+15) it would give you 208
Therefore <<<B: 13×16>>> is equivalent to 13×(11+15) when multiplied because it gives you 208
1.
A line has equation y = 3x + 4
(a) Write down the gradient of the line
25 POINTS
PLEASE HELP ME ANSWER BOTH QUESTIONS :)))
Answer:
the gradient is 3
y- intercept is 4
Step-by-step explanation:
when you're asked the gradient, you can find it as a coefficient of"x" in equation where the coefficient of "y" is one.
y=mx+b
m=> gradient
b=> y- intercept
We want to find the gradient and y-intercept of a given line.
The solutions are:
a) gradient = 3
b) y-intercept = 4
A general line written in slope-intercept form is:
y = a*x + b
Where a is the slope and b is the y-intercept.
The slope defines how the change in the variable y relates to the changes in the variable x, so the slope is also called the rate of change or gradient.
Thus, if we want to find the gradient, we must read the coefficient that multiplies the variable x, and the constant will be the y-intercept.
In the given line:
y = 3*x + 4
Comparing this with the general line, we can see that the gradient is 3 (the slope), and the y-intercept is 4.
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Help me 20 points ........................
Answer:
Step-by-step explanation:
First, you need to find the slope of the line. To do this you need to choose two points on the graph. The points you are given are (-2, 1) and (4, 6). Then use these to find the slope.
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
[tex]m=\frac{6-1}{4-(-2)}[/tex]
[tex]m=\frac{5}{6}[/tex]
You can then plug this and one of your chosen points into the slope-intercept formula
[tex]y-y=m(x-x)[/tex]
[tex]y-1=\frac{5}{6} (x-(-2))[/tex]
[tex]y-1=\frac{5}{6} x+\frac{5}{3}[/tex]
[tex]y=\frac{5}{6}x+\frac{8}{3}[/tex]
Which statement must be true to prove
HELP LDJAODXOSBDIXNXM
Answer:
A
Step-by-step explanation:
Because math
1. Write an expression for the operation described below.
w minus 3
The expression for the operation w minus 3 is w - 3.
What is an expression?It should be noted that an expression simply shows the relationship between the variables given.
In this case, the information given is illustrated as w minus 3.
Therefore, the expression will be:
= w - 3.
Therefore, the expression for the operation w minus 3 is w - 3.
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given h(x) = x + 4 find h(-4) + 2.
Answer:
2
Step-by-step explanation:
First, find h(-4) by plugging in -4 as x in the function:
h(x) = x + 4
h(-4) = -4 + 4
h(-4) = 0
Then, add 2 to this:
0 + 2
= 2
So, h(-4) + 2 = 2
What is 28.6 - 0.975 and I need an explanation.
Answer:
27.625
Step-by-step explanation:
28.600
-0.975
_______
27.625
in words... 28.6-0.975. take away 1 from the 6 and make it five, carry it over to the zero in the hundredths place. Make that 10 a 9 and carry it over to the thousandths place and do 10-5 so in the answer, the thousandths place is 5. 9-7 in the hundredths place is 2 so your answer so far is __._25. take 1 away from 8 and that is now 7 so 15-9 is 6. So your answer so far is __.625. 27-0 is 27 so your answer is 27.625.
What is the volume of a figure that is 5cm,5cm,8cm,8cm,8cm,1cm
Answer:
the volume is 40 cm
Step-by-step explanation:
to find the volume all you need is length times width times height and you multiply it and that is your answer
Anthony bought 3.4 pounds of Halloween candy that cost $6.95 a pound. How much money did he spend on candy?
Answer:
23.63
Step-by-step explanation:
3.4 x 6.95
Christine can buy a new snowboard for $130.50. She will still need to rent boots for $8.50 a day. She can rent a snowboard and boots for $18.25 a day. How many days would Christine to rent both the snowboard and boots to pay as much as she would if she buys the snowboard and rents only the boots for the season?
please please please I need an answer
Answer:
14 daysStep-by-step explanation:
New snowboard and boots for x days rent cost
130.50 + 8.5xRent snowboards and boots for x days cost
18.25xIf the costs are same, then:
18.25x = 130.5 + 8.5x18.25x - 8.5x = 130.59.75x = 130.5x = 130.5/9.75x = 13.38 or 14 days rounded to next integerAtul has 2 3 lb of candy. Jose has 3 5 lb and Maria has 1 2 lb less than Jose.
How many more pounds of candy does Atul have than Maria?
Answer:
17/30
Step-by-step explanation:
Atul-2/3
Jose- 3/5
Maria- 3/5-1/2=1/10
Now, you need to find how much MORE Atul has than Maria
2/3-1/10=17/30
Answer:
17/30
Step-by-step explanation:
Allen is showing his work in simplifying -8.3 + 9.2 - 4.4 + 3.7. Identify and explain any errors in his work or in his reasoning. Write feedback to Allen explaining the mistake he made and how to correct his work
Answer:
0.2 is the correct answer.
Answer:
-8.3 + 9.2 - 4.4 + 3.7
= -8.3 + 9.2 + (-4.4) + 3.7 {Additive inverse}
= -8.3 + (-4.4) + 9.2 + 3.7 {Commutative Property}
= [ -8.3 + (-4.4] + [ 9.2 + 3.7] {Associative property}
= - 12.7 + 12.9
= 0.2
answer is 0.2
A student brings a bag of candy to share with the class. The bag of candy can be equally split among 4, 5, or 6 students with each receiving the same number of candies. Which of the following represents the smallest possible number of candies in the bag?
Select one:
A. 6
B. 30
C. 60
D. 90
E. 120
Answer: C. 60
Step-by-step explanation:
In this situation, they are asking the least common multiple of 4,5, and 6.
Find the LCM of the numbers or the multiples of the numbers.
Multiples of 4 are 4, 8, 12,16, 20, 24,28,32,36, 40, 44,48,52,56,60.
Multiples of 5 are 5, 10,15,20,25,30,35,40,45,50,55,60.
Multiples of 6 are 6,12,18,24,30,36, 42, 48, 54, 60,
As we can see in their multiples, they do not share the multiple 6 or 30 .
But they all share the number 60 which means that 60 is the least possilbe number of candies in the bag.
Note that is can go on to be 90 or 120 but they are not the smallest ones.
what does a z-score tell you
Answer:
The value of the z-score tells you how many standard deviations you are away from the mean. ... A positive z-score indicates the raw score is higher than the mean average. For example, if a z-score is equal to +1, it is 1 standard deviation above the mean. A negative z-score reveals the raw score is below the mean average.
Step-by-step explanation:
25. angle EFG and angle GFH are a linear pair,
m angle EFG = 2n + 21, and m angle GFH = 4n + 15.
What are m angle EFG and m angle GFH?
Answer:
m<EFG = [tex]69^{o}[/tex], and m<GFH = [tex]111^{o}[/tex]
Step-by-step explanation:
Linear pair angles are two supplementary angles.
Thus,
m<EFG + m<GFH = [tex]180^{o}[/tex]
2n + 21 + 4n + 15 = [tex]180^{o}[/tex]
collecting like terms, we have:
6n + 36 = [tex]180^{o}[/tex]
6n = [tex]180^{o}[/tex] - 36
6n = [tex]144^{o}[/tex]
divide both both sides by 6,
n = [tex]24^{o}[/tex]
Therefore,
m<EFG = 2n + 21
= 2 x [tex]24^{o}[/tex] + 21
= 48 + 21
= [tex]69^{o}[/tex]
m<GFH = 4n + 15
= 4 x [tex]24^{o}[/tex] + 15
= 96 + 15
= [tex]111^{o}[/tex]
Thus m<EFG = [tex]69^{o}[/tex], and m<GFH = [tex]111^{o}[/tex]
Multiply.
(−2.1)⋅(−1.4)
−29.4
−2.94
2.94
29.4
Answer:
2.94
Step-by-step explanation:
multiply them like normal multiplication
remember that 2 negatives equal positive
//PLEASE HELP\\
WILL GIVE BRAINLIEST
The town of Easy is mapped on a coordinate grid with the origin being at the statue before City Hall. KFC is located at the point (3, 7) and McDonalds is located at (-3, 7).
How far is it from KFC to McDonald?
A.5
B.6
C.89
D.36
Answer: It should be B.
Step-by-step explanation:
Regular exercise can help a person lower their resting heart rate. Suppose an individual’s resting heart rate, in beats per minute, is modeled by the function f(x) = –0.1x 3 + 0.6x 2 + 85 after x weeks of regular exercise.
How many weeks of exercise are necessary to lower the individual’s resting heart rate below 70 beats per minute?
7 weeks
8 weeks
9 weeks
10 weeks
Answer:
9 weeks
Step-by-step explanation:
edge 2020
On solving the inequality, 9 weeks of exercise are necessary to lower the individual’s resting heart rate below 70 beats per minute.
What is inequality?An inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.
[tex]-0.1x^{3} + 0.6x^{2} +85 < 70\\[/tex]
where, x is the number of weeks of exercise is necessary to lower the individual's resting heart rate below 70 beats per minute.
This cubic inequality can be solved by hit and trial method.
when x = 7.
[tex]-0.1x^{3} + 0.6x^{2} +85 < 70\\[/tex]
[tex]=-0.1*7^{3} + 0.6*7^{2} +85[/tex] = 80.1
80.1 > 70
Thus, x = 7 is not suitable.
when x = 8.
[tex]-0.1x^{3} + 0.6x^{2} +85 < 70\\[/tex]
[tex]=-0.1*8^{3} + 0.6*8^{2} +85[/tex] = 72.2
72.2 > 70
Thus, x = 8 is not suitable.
when x = 9.
[tex]-0.1x^{3} + 0.6x^{2} +85 < 70\\[/tex]
[tex]=-0.1*9^{3} + 0.6*9^{2} +85[/tex] = 60.7
60.7 < 70
Thus, x = 9 is suitable.
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How to solve the exponent
Answer:
- 7
Step-by-step explanation:
Step 1:
8 ÷ 2³ - 16 ÷ 2 Equation
Step 2:
8 ÷ 8 - 16 ÷ 2 Exponents
Step 3:
1 - 16 ÷ 2 Divide
Step 4:
1 - 8 Divide
Answer:
- 7
PEMDAS:
P: Parentheses
E: Exponents
M: Multiplication
D: Division
A: Addition
S: Subtraction
Hope This Helps :)
i need help asap questions 12-17 please.
Answer:
12. -5 and 4
13. -2 and -1
14. -5 and 6
15. -4 and -3
16. -2 and 8
17. -3 and 8
Step-by-step explanation:
So there Is the Question Answer This One And the Other is for the other person
Answer:
y = 1/3x +5/3
The third one : )
Analyze the graphed function to find the local minimum and the local maximum for the given function. On a coordinate plane, a curved line with minimum values of (0.6, negative 8) and (3.4, negative 8), and a maximum value of (2, 0), crosses the x-axis at (0, 0), (2, 0), and (4, 0), and crosses the y-axis at (0, 0). Which statements about the local maximums and minimums for the given function are true? Choose three options. Over the interval [1, 3], the local minimum is 0 Over the interval [2, 4], the local minimum is –8. Over the interval [3, 5], the local minimum is –8. Over the interval [1, 4], the local maximum is 0. Over the interval [3, 5], the local maximum is 0.
Answer:
Over the interval [2, 4], the local minimum is –8.
Over the interval [3, 5], the local minimum is –8.
Over the interval [1, 4], the local maximum is 0.
Answer:
b,c and D
Step-by-step explanation:
Over the interval [2, 4], the local minimum is –8.
Over the interval [3, 5], the local minimum is –8.
Over the interval [1, 4], the local maximum is 0.
Which number is in the range of the function? (1, 4) (2, 5) (3, 8)
asap pls
Answer:
The only possible solutions are 4,5,8
Step-by-step explanation:
The domain is the input and the range is the output
The range is {4,5,8}
The only possible solutions are 4,5,8
Step-by-step explanation:
Hey there!
The answer is (4,5,8).
Range: The range are generally knwon as y-coordinates.
In questions the function is; (1,4), (2,5), (3,8), the y-coordinates are: (4,5,8).
Hope it helps..
in the diagram angles a and h are_____
Answer:
alternate exterior angles
Step-by-step explanation:
a and h are on opposite sides of the transversal and they are outside the parallel lines.
Which of the following statements about the distance formula is TRUE? please help ill give brainliestttt
The distance formula can be written correctly in several different ways.
The distance formula cannot be derived from the Pythagorean Theorem.
The distance formula can be written correctly in only one way.
The distance formula only applies to points in one dimension.
Answer:
The distance formula can be written correctly in several different ways.
I hope this helps.
Cheers.^^
The True statement about distance formula is
The distance formula can be written correctly in several different ways.
What is Speed- Distance Formula?Speed = Distance/Time Distance = Speed X Time Time = Distance / Speed.Given:
We know that if we have to find speed, we use
Speed = Distance/Time
and, if we have to find distance, we use
Distance = Speed X Time
and, if we have to find time , we use
Time = Distance / Speed.
Hence, The distance formula can be written correctly in several different ways.
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