Answer:
the answer is 10,000
Step-by-step explanation:
thats what i put on the test and got it right
Answer:
d
Step-by-step explanation:
There are 8 people in the gym. An hour later, there are double that number. How many people are in the gym now?
Answer:
16
Step-by-step explanation:
because 8+8 is 16 when doubling 8
A store is having a sale on almonds and jelly beans. For 4 pounds of almonds and 8 pounds of jelly beans, the total cost is $25. For 2 pounds of almonds and 3
pounds of jelly beans, the total cost is $10. Find the cost for each pound of almonds and each pound of jelly beans.
let x = number of pounds of jelly beans
y = number of pounds of almonds .
then , 4x + 8y =33
2x + 3y = 13
multiply the second equation by -2 to get the system :
4x + 8y =33
-4x - 6y = -26
adding the equations ,we get 2y=7. so y=3.5
substitute for y in either of the given equations : 2x + 3 (3.5) =13
+ 10.5=13
2x =2.5
x=1.25
answer : A pound of jelly beans costs $1.25 and a pound of almonds costs $3.50.
find the greatest common factor of each set 15,20
Answer:
5
Step-by-step explanation:
.......................
1. If the demand (price) function is P(Q) = 100 − 4Q, find expressions for revenue function, R(Q) and marginal revenue function, MR(Q). Hence estimate the MR for 10 units of sales.
PLEASE HELP!!!
what is the average rate of change of the equation: y=4x^2-10x+2, between f(3) and f(5)?
Answer:
Average rate of change=22
Step-by-step explanation:
We need to find the average rate of change of the equation: [tex]y=4x^2-10x+2[/tex]between f(3) and f(5).
The formula used to find average rate of change is: [tex]Average \ rate \ of \ change=\frac{f(b)-f(a)}{b-a}[/tex]
In the given question we have a=3 and b =5
Finding f(a) i.e f(3)
[tex]f(3)=4(3)^2-10(3)+2\\f(3)=4(9)-30+2\\f(3)=36-30+2\\f(3)=8[/tex]
Finding f(b0 i.e f(5)
[tex]f(5)=4(5)^2-10(5)+2\\f(5)=4(25)-50+2\\f(5)=100-50+2\\f(5)=52[/tex]
Putting values of f(3)=8 and f(5)=52 to find average rate of change
[tex]Average \ rate \ of \ change=\frac{f(b)-f(a)}{b-a}\\Average \ rate \ of \ change=\frac{52-8}{5-3}\\Average \ rate \ of \ change=\frac{44}{2}\\Average \ rate \ of \ change=22[/tex]
So, Average rate of change=22
Please help me i attached a photo
Answer:
negative twelve
Step-by-step explanation:
the slope is -1, so one must go down as the other goes up. since the x value has increased by 3, the y value must decrease by three
What is the best price?
1 bag = $0.89
6 bags = $16.48
48 bags = $44.89
second question: What is the unit price of the best deal? (Round to nearest penny... do not use
symbols)
Answer:
1 bag
Step-by-step explanation:
because the other ones are more expensive
Which of the following equations is not a proportion?
A. 2/3 = 142/213
B. 22/33 = 4/6
C. 14/7 = 7/3.5
D. 1.5/3 = 3/9
Answer:
both of the people above me are wrong, its
22/33=4/6
Step-by-step explanation:
(22/33)=(4/6) is the following equations are not a proportion. Option B is correct.
What is the difference between a ratio and a proportion?A ratio is an ordered pair of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two ratios are specified to be equal.
The two numbers in ratio in numerator and denominator is divided by the same number and obtained as the whole number as;
[tex]\rm \frac{a}{b} = \frac{2 \times a}{2 \times b}[/tex]
(22/33)=(4/6) is the following equations are not a proportion.
Hence, option B is correct.
To learn more about the ratio, refer to the link;
https://brainly.com/question/14335762
#SPJ2
YO ANYONE GOT SOME HELLA VIBING SONGS TO JAM OUT TO IM BORREEDD AS HEELLLLLLLLLLLLL
A customer purchases two bags of cherries if each bag costs $7.99 each and He pays with a $20 bill. with no tax, how much change will he receive back?
Answer:
12.01
Step-by-step explanation:
20-7.99
11. A 3000-kg truck moving rightward with a speed of 5 km/hr collides head-on with a 1000-kg car moving leftward with a speed of 10 km/hr. The two vehicles stick together and move with the same velocity after the collision. Determine the post-collision speed of the car and truck.
Help! Will give brainlest
Answer:
A. 3, 7, 9, 10, 12
Step-by-step explanation:
All of these numbers as x are less than 14.
Hope it helps!
Determine the missing information in the paragraph proof.
Given: Line PQ is rotated 90° counterclockwise to form line P’Q’. The lines are perpendicular. Line PQ contains the points (a, b) and (c, d). Line P’Q’ contains the points (–b, a) and (–d, c).
Prove: The slopes of perpendicular lines are negative reciprocals.
On a coordinate plane, 2 perpendicular lines are shown. Line P Q has points (a, b) and (c, d). Line P prime Q prime has points (negative b, a) and (negative d, c).
The slopes of lines PQ and P’Q’ can be determined using the formula m = StartFraction v 2 minus v 1 Over x 2 minus x 1 EndFraction
The product of these slopes is ________. This product shows that the slopes are negative reciprocals. It is given that the lines are perpendicular and we have shown that the slopes of the lines are negative reciprocals.
Answer:
The answer is A.
Step-by-step explanation:
(StartFraction d minus b Over c minus a EndFraction) (StartFraction c minus a Over negative d + b EndFraction) = negative 1
Answer:
A.
Step-by-step explanation:
Edge 2021
Solve the following quadratic equation by completing the square: x^2-12x+5=7
PLS HELP ASAP
Answer:
[tex] {x}^{2} - 12x + 5 = 7[/tex]
i) move constants to the right-hand side and change its sign
[tex] {x}^{2} - 12 {x} = 7 - 5[/tex]
ii) subtract the numbers
[tex] {x}^{2} - 12x = 2[/tex]
iii) add (12/2)² to both sides of the equation
[tex] {x}^{2} - 12x + ( \frac{12}{2} ) {}^{2} = 2 + ( \frac{12}{2} ) {}^{2} [/tex]
iv) using a²-2ab+b²=(a-b)² , factorize the expression
[tex](x - \frac{12}{2} ) {}^{2} = 2 + ( \frac{12}{2} ) {}^{2} [/tex]
v) calculate the value
[tex](x - \frac{12}{2}) {}^{2} = 2 + 36[/tex]
[tex](x - \frac{12}{2}) {}^{2} = 38[/tex]
vi) reduce the fraction
[tex](x - 6) {}^{2} = 38[/tex]
vii) solve the equation for x
[tex]x - 6 = + - \sqrt{38} [/tex]
1) first value of x
[tex]x - 6 = \sqrt{38} [/tex]
[tex]x = \sqrt{38} + 6 \: or \: 12.16[/tex]
2) second value of x
[tex]x - 6 = - \sqrt{38} [/tex]
[tex]x = - \sqrt{38} + 6 \: or \: - 0.16[/tex]
The Hu family goes out for lunch, and the price of the meal is $44. The sales tax on the meal is 6%, and the family also leaves a 20% tip on the pre-tax amount. What is the total cost of the meal?
The total cost of the meal is $
Answer:
Step-by-step explanation:
1
find the amount of tax
2
find the amount of the tip
3
find the total cost by adding the cost of the meal, the tax, and the tip
RESULT
56.70
What is the answer to 8/10 x 5/2
Answer:
your answer is 2!
Step-by-step explanation:
you have to make it an improper fraction once you do you get 2!
brainliest please>
Answer:
2
Step-by-step explanation:
8/10 = 0.8
5/2 = 2.5
0.8 x 2.5 = 2
A train travels at a constant speed for 528 miles. If it takes the train 8 hours to travel the distance, what is
the unit rate at which the train travels?
Answer:
The train travels at 66 miles per hour.
Step-by-step explanation:
Given that:
Time taken by train = 8 hours
Distance covered by train in 8 hours = 528 miles
Unit rate is defined by the distance travelled by train in one hour.
Therefore, we will divide the total time taken by train to distance covered by train in that time.
Unit rate = [tex]\frac{Distance\ travelled}{Time\ taken}[/tex]
Unit rate = [tex]\frac{528}{8}[/tex]
Unit rate = 66 miles per hour
Hence,
The train travels at 66 miles per hour.
QUICK PLEASEEEEEEE!!!!!!!!!!!!?!???!?!?!
what time is it
(plz answr quikly)
Answer:
it is 10:22am
Step-by-step explanation:
hope it helped brainliest?
Move the digits in 625,134 to create a
new number.
Move the 2 so it is worth 1o as much.
Move the 3 so it is worth 10 times as
much.
Move the 5 so it is worth 50,000.
Move the 4 so its value changes to
4 X 100,000.
Move the 1 and the 6 so that the sum of
their values is 16.
write the new number
Answer:
a. The new number created is 265,134.
b. The new number created is 625,314.
c. The new number created is 652,314.
d. The new number created is 462,513.
e. The new number created is 253,416.
Step-by-step explanation:
Note: The first question is not correctly and fully stated. It is therefore restated as the questions are answered as follows:
a. Move the 2 so it is worth 10 as much.
From 625,134, the 2 implies 20,000.
If we move the 2 so it is worth 10 as much, it implies that 20,000 is multiplied by 10 and the answer is as follows:
20,000 * 10 = 200,000
The answer implies that 2 becomes the first number and the new number created from 625,134 is as follows:
The new number created is 265,134.
b. Move the 3 so it is worth 10 times as much.
From 625,134, the 3 implies 30.
If we move the 3 so it is worth 10 as much, it implies that 30 is multiplied by 10 and the answer is as follows:
30 * 10 = 300
The answer implies that 3 becomes the fourth number and the new number created from 625,134 is as follows:
The new number created is 625,314.
c. Move the 5 so it is worth 50,000.
This implies that 5 becomes the second number and the new number created from 625,134 is as follows:
The new number created is 652,314.
d. Move the 4 so its value changes to 4 X 100,000
This implies that 4 is now 400,000 and it now becomes the first number. The new number created from 625,134 is as follows:
The new number created is 462,513.
e. Move the 1 and the 6 so that the sum of their values is 16.
This implies the one becoms 10 and the 6 becomes just 6.
As a result, this implies that the 1 now becomes the fifth number and the 6 now become the last number. The new number created from 625,134 is now as follows:
The new number created is 253,416.
Sarah works for the Urban Pollination Project at UW. Five years ago, 25% of urban gardens were visited by native bees, and Sarah would like to show that this proportion is different now than it was five years ago. Suppose Sarah calculates a p-value of 178. What is the best conclusion at a significance level of 0.057?
a. Sarah does not have evidence that the proportion of urban gardens visited by native bees has not changed.
b. Sarah has evidence that the proportion of urban gardens visited by native bees has not changed
c. Sarah has evidence that the proportion of urban gardens visited by native bees has changed
d. Sarah does not have evidence that the proportion of urban gardens visited by native bees has changed
Answer:
The answer is "Option a".
Step-by-step explanation:
The value of p [tex]= 0.178[/tex]
The significance level[tex]= 0.057[/tex]
Hypothesis:
[tex]H_0 -p=0.25\\\\H_1 -p \neq 0.25\\\\\to 0.178 > 0.057[/tex] that is p-value [tex]> \alpha[/tex]
therefore we don't reject[tex]H_o[/tex]
A lacrosse team won 80% of their games. If they won 24 games, how many games did they play?
Answer:
30
Step-by-step explanation:
80% of 30 is 24 (u can use a calculator if you would like to check the answer but it is 30)
Answer: 30 games
Step-by-step explanation:
24 game won 6 game loss and 80%
what is 3/8 divided by 5/12
Answer:
it would be 9/10.
Step-by-step explanation:
Cos2A + cos2A cot2A = cot2A
cos(2A) + cos(2A) cot(2A) = cot(2A)
cos(2A) + cos(2A) cot(2A) - cot(2A) = 0
cot(2A) sin(2A) + cos(2A) cot(2A) - cot(2A) = 0
cot(2A) (sin(2A) + cos(2A) - 1) = 0
cot(2A) = 0 or sin(2A) + cos(2A) - 1 = 0
cot(2A) = 0 or sin(2A) + cos(2A) = 1
cot(2A) = 0 or sin(2A) cos(π/4) + cos(2A) sin(π/4) = 1/√2
cot(2A) = 0 or sin(2A + π/4) = 1/√2
[2A = cot⁻¹(0) + nπ] or
[2A + π/4 = sin⁻¹(1/√2) + 2nπ or 2A + π/4 = π - sin⁻¹(1/√2) + 2nπ]
(where n is any integer)
[2A = π/2 + nπ] or
[2A + π/4 = π/4 + 2nπ or 2A + π/4 = 3π/4 + 2nπ]
[A = π/4 + nπ/2] or
[2A = 2nπ or 2A = π/2 + 2nπ]
[A = π/4 + nπ/2] or
[A = nπ or A = π/4 + nπ]
A = (1 + 2n) π/4 or A = nπ or A = π/4 + nπ
In 2001, the world population 6.5 billion and was increasing at a rate of 1.2% each year.
Find the population in 2017. Round to the nearest tenth.
Answer:
8.0 billion
Step-by-step explanation:
1.2÷100=0.012
0.012×6.5=0.078
2017-2001=16
0.078×16=1.248
6.5+1.248=7.748
nearest tenth 8.0
Keith wants to save money to purchase a car. He buys an annuity with quarterly payments that earn 2.8% interest, compounded quarterly. Payments will be made at the end of each quarter. Find the total value of the annuity in 5 years if each quarterly payment is $851.
Answer: On each, first identify as a Future Value annuity or Present Value annuity. Then answer the question. 1) How much money must you deposit now at 6% interest compounded quarterly in order to be able to withdraw $3,000 at the end of each quarter year for two years?
Step-by-step explanation: hope this helps
so my kid dosent know this 468 divided by 32
Answer:
14.625
Step-by-step explanation:
Answer: 14.625
Step-by-step explanation: can i have brainliest?
Help please help please help please please help
Answer:
125cm^3
Step-by-step explanation:
Length x Width x Height
5x5x5=125
(8+5i) + (10+6i)-(3+6i)
Answer:
15 + 5i
Step-by-step explanation:
[tex](8+5i) + (10+6i)-(3+6i) \\ \\ = 8 + 5i + 10 + 6i - 3 - 6i \\ \\ =( 8 + 10 - 3 )+ (5i + 6i - 6i )\\ \\ = 15 + 5i[/tex]
To practice for a competition, Alexia swam 0.54 kilometers in the pool each day for 2 weeks. How many meters did Alexia swim in those 2 weeks?
Answer:Alexia swam 7,560meters in 2 weeks
Step-by-step explanation:
Step 1
7 days = 1 week
therefore 2 weeks = 7 x 2 = 14 days
Step 2
Each day Alexia swam = 0.54 kilometres
So in 14 days( 2 weeks) She swam = 14 x 0.54 km= 7.56km
Answer is needed in meters
so 1000 m = 1km
Therefore 7.56 km = 7.56km x 1000=7,560meters
Please help me
A graph is shown below:
Answer:
sorry but their is no picture its black...
Answer:
Option D is correct
Step-by-step explanation:
For this question we would need the equation of line since this is a multiple choice question you wouldn't have enough time to find out the equation so we need to be FAST
If we see all the four options at first glance option C or option D seem correct because the line represents a rise in values of x and y respectively, which means x increases with respect to y. So the slope/gradient in other words m should be positive so option A and B are ruled out because the equation of line is written as
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept so seeing the graph our equation of line should be
[tex]y=mx-2[/tex]
where b = -2 because value of b corresponds to y-intercept which means the where the graph intersects the y-axis in this case its -2
where m is positive in this case 5 thus
[tex]y=5x-2[/tex]
if we try to rearrange the four choices option C and D give us the above equation and option A and B give us
[tex]y=-5x+2[/tex]
which is wrong !
Now, regarding the inequality sign the graph represents
[tex]y=5x-2[/tex]
and the area which is shaded in blue is the region lower the line which means it should be
[tex]y\leq 5x-2[/tex]
in this case its D if we rearrange it
I have two images so you understand it better visually
As you can see in both forms are shaded region is the same so option D is correct
