Answer:
True
Step-by-step explanation:
Every integer is a rational number, since each integer n can be written in the form n/1.
Answer: sir your answer is TRUE
Step-by-step explanation:all integers are a rational number. They can be written as a fraction
find the slope of the line?
the slope is____
Answer:
Slope is m= -1
Step-by-step explanation:
Use the slope formula to find the slope m .
y=mx+b
Diego's age d is 5 more than 2 times his sister's age s. This situation is represented
by the equation d = 2s +5. Which equation is equivalent to the equation d = 2s +5?
a. d = 2(s+5)
b. d - 5 = 2s
C.
d - 2 = s +5
d. = 5+5
Answer:
d-5=2s
Step-by-step explanation:
Diego's age d is 5 more than 2 times his sister's age s.
The equation used to represent it is :
d = 2s +5
We need to find the equivalent equation for the above equation.
If we take 5 to LHS of the equation, it will become -5 such that,
d-5=2s
Hence, option (b) is the equivalent equation.
Answer:
answer b is the correct answer
Step-by-step explanation:
determine the x-intercept and y-intercept of the following linear equations
standard form and show you did it
Answer:
Step-by-step explanation:
the x intercept takes coordinate (x,0)
the y intercept takes coordinate (0,y)
x intercept y intercept
40: x+y=5 (5,0) (0,5)
x=0 , y=5, when y=0 x=5
41: x-y=5 (5,0) (0,-5)
x=0, -y=5 then y=-5, when y=0, x=5
42: 3x+4y=12 (4,0) (0,3)
x=0, 4y=12⇒y=12/4⇒y=3
y=0, 3x=12⇒x=12/3⇒x=4
43: 2x+3y=6 (3,0) (0,2)
x=0 , 3y=6⇒y=6/3=2
y=0 ,3y=6 ⇒ y=6/3 ⇒y=2
44: 3x+4y=-24 (-8,0) (0,-6)
x=0 , 4y=-24⇒y=-24/4 ⇒ y=-6
y=0 , 3x=-24⇒ x=-24/3⇒x=-8
45: 1/3x+2/3y=5/6 (5/2,0) (0,5/4)
x=0 , 2/3 y=5/6 ⇒12y=15 ⇒ y=15/12 ⇒y=5/4
y=0 , 1/3 x=5/6 ⇒6x=15 ⇒x=15/6 ⇒x=5/2
46: x=-2 (-2,0) no y intercept
it is vertical line , there is no y intercept
47: y=15 no x intercept (0,15)
horixzontal line, no x intercept
48: 3x-7y=8 (8/3,0) (0,-8/7)
x=0 , -7y=8 ⇒y=-8/7
y=0 , 3x=8 ⇒x=8/3
How to convert 3100.0 × 10² into scientific notation
Answer: 3.1 x 10 ^5
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
The required scientific notation of the number 3100 * 10² is [tex]3.1*10^5[/tex].
Given that,
To convert 3100.0 × 10² into the scientific notation.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,
What is scientific notation?Scientific notation is appropriate formate of large values like 100000 = [tex]10^5[/tex] is called scientific notation,
Here,
3100 * 10² = 3.1 * 1000 * 10²
3100 * 10² = 3.1* 10³ * 10²
3100 * 10² = 3.1 ([tex]10^{3+2}[/tex])
3100*10² = [tex]3.1*10^5[/tex]
Thus, the required scientific notation of the number 3100 * 10² is [tex]3.1*10^5[/tex].
Learn more about arithmetic here:
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translate the phrase into an algebraic expression
Answer:
9 × c or 9c
Step-by-step explanation:
Product means multiplication so the answer would be 9 × c. Since there is a variable, the answer doesn't even need the multiplication sign, but it is fine either way.
give the equation of the x- axis and identify the type of line it represents (vertical or horizontal ).
___Fill_in_blank_here_______________________________________
Answer:
Equation of x-axis is y=0, it is a horizontal line.
Step-by-step explanation:
We need to find the equation of the x- axis and type of line it represents (vertical or horizontal ).
On the x-axis, the value of y is always 0 and the value of x can be and real number. Since y is free from x and its value is 0, therefore the equation of x-axis is
[tex]y=0[/tex]
Value of y remains same. So, it represents a horizontal line which intersects the y-axis at 0.
Therefore, equation of x-axis is y=0, it is a horizontal line.
This needs to be simplified
Answer:
28x+20
Step-by-step explanation:
2.5(10x+8)=25x+20=25x+20+3x=28x+20
2.Ellington earns $210 for working 10 hours. How much does he earn per 40 hours?
Answer: $840
Step-by-step explanation:
Set up the proportion 210/10 = x/40.To solve it quickly, multiply 210 with 4, since 10*4 = 40. Therefore, x = 840.y÷7+15=21 Please answer & quick!!
Answer: Y=42
Step-by-step explanation:
Y/7+15=21
Subtract 15 on both sides
Y/7=6
Divide by 1/7 on both sides (or multiply 7 on both sides, it’s the same results)
Y=42
If Macy has $8.75 worth of quarters in her pocket, how many quarters does she have available to use at the laundromat?
Answer:
35 quarters
Step-by-step explanation:8×4=32
32+3=35
A:
Name the 6 congruent parts of the congruent triangles listed using tic marks if given the drawing or
by the congruent statement itself
1
2
ACAT = ADOG
Answer:
A CAT = A DOG
A TAC = A GOD
A ACT = A ODG
A ATC = A OGD
A TCA = A GDO
A CTA = A OGD
Step-by-step explanation:
You can mix them up as long as the other similar side is the same as you mix them up. Ik it sounds confusing but please see the pattern
Olivia is going to an amusement park. The price of admission into the park is $40, and once she is inside the park, she will have to pay $4 for every ride she rides on. How much money would Olivia have to pay in total if she goes on 13 rides? How much would she have to pay if she goes on r rides?
Cost for 13 rides:
Cost for r rides:
Answer:
Cost for 13 rides: $92
Cost for r rides: I am guessing it would be 40+4r
Step-by-step explanation:
If you automatically pay 40 dollars to get in, then that is the constant, and paying 4 dollars per ride is a coefficient, so that would be multiplied by how many rides you go on, the variable. Once you plug those into the equation above, you would get 92 dollars for the thirteen rides.
What is the value of f(2)? Use the graph.
Answer: 1?
Step-by-step explanation:
Nadine mixes a juice solution that is made from 3 gallons of an 80% juice solution and 1 gallon of a 20% juice solution. What is the percent concentration of the final solution?
25%
50%
65%
70%
Answer:
65%
Step-by-step explanation:
Answer:
C: 65%
Step-by-step explanation:
Just did it on Edg...Hope this helps tho ^-^
Frank's Auto Corner recorded its sales for the second quarter (April, May and June) of 1999. April sales were 89 cars, May sales were 98 cars, and June sales were 115 cars. During the same quarter in the previous year, 1998, the total sales were 287 cars. How many cars were sold at Frank's Auto Corner during the second quarter of 1999? How many more cars were sold during the second quarter in 1999 than in the second quarter of 1998? Explain how you got your answer.
The number of cars sold at Frank's Auto Corner during the second quarter of 1999 is 302 cars.
The number of cars sold by which 1999 sales exceeds 1998 sales is 15 cars
What is the number of cars sold in second quarter of 1999?
The number of cards sold by Frank's Auto Corner in the second quarter of 1999 is the sum of April sales, May sales and June sales as provided in the scenario given, hence, we just need to sum up the three figures to ascertain total number of cars sold
cars sold in second quarter 1999=89+98+115
cars sold in second quarter 1999=302 cars
The difference between the number of cars sold in second quarter of 1999 over that sold in the second quarter of 1998 is computed by taking the difference between 302 cars and 287 cars
difference in car sales=302-287
difference in car sales=15 cars
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There are 625 students in Weaver Junior High School. Jimmy surveyed 30 students in his English class regarding their favorite subject. Twenty-four of the students responded that they liked history best. If his class is representative sample of the entire school, how many students in the school could Jimmy predict would choose history as their favorite subject?
24 of the 30 students surveyed liked history.
24/30 = 0.8 = 80% of the students surveyed liked history.
Multiply total students by 80%
625 x 0.8 = 500
500 of the total students like history.
The number of students in the school could Jimmy predict would choose history as their favorite subject is 500.
Calculation of the number of students:Since
There are 625 students in Weaver Junior High School. Jimmy surveyed 30 students in his English class regarding their favorite subject. Twenty-four of the students responded that they liked history best.
So here the probability be like
[tex]24 \div 30[/tex] = 80%
So,
= 80% of 625
= 500
hence, The number of students in the school could Jimmy predict would choose history as their favorite subject is 500.
Learn more about students here: https://brainly.com/question/20875379
In a certain region, 6% of a city’s population moves to the surrounding suburbs each year, and 4% of the suburban population moves into the city. A 2019 census measures 10,000,000 residents in the city and 800,000 in the suburbs. (a) Set up a difference equation (of the form ~xn+1 = A~xn) that describes this situation, where ~x0 is the initial population in 2019. (b) Estimate the populations in the city and suburbs two years later, in 2021.
Answer:
Follows are the solution to this question:
Step-by-step explanation:
Following are the differential equation:
[tex]\to P(C,S)t+1 = P(C,S)t+(- 0.06Ct +0.04St, 0.06Ct - 0.04St ) \ \ \ \\\\or \ \ \ \ \ \ \ \\\\ \to (0.94Ct + 0.04St, 0.96St + 0.06Ct)[/tex]
In equation:
[tex]\to t = 0, \ as \ 2019\\\\\to Ct = 10,000,000 \\\\\to St = 800,000,000\\[/tex]
[tex]\to P(C, S)1 = (0.94Ct + 0.04St, 0.96St + 0.06Ct) \\\\[/tex]
[tex]= (0.94(10000000) + 0.04(800000), 0.96(800000) + 0.06(10000000))\\\\ = (9,400,000 + 32,000), (768,000 +6000000))\\\\ = (9432000, 1368000)[/tex]
[tex]\to P(C, S)2 = (0.94(9432000) + 0.04(1368000), 0.96(1368000) + 0.06(9432000))[/tex]
[tex]=(8,866,080 + 54,720), (1,313,280 + 565,920)\\\\=(8,920,800, 1,879,200)[/tex]
A turtle walks 2/3 of a mile in 50 minutes. What is the unit rate when the turtle's speed is expressed in miles per hour? Group of answer choices
Answer:
The turtle moves at a speed of 0.8 mph
Step-by-step explanation:
[tex]\frac{2}{3} /50 = 0.013\\0.013*60=0.8[/tex]
Which is the third greatest rational number
A: (-1.4)
B:(-3/5)
C:9/2
D: 1/4,
E: 0.9
Thank you for your help everyone
PLEASE HELP
Justify each step in solving the equation 7(x+1)+11x=-2x-5 by writing a reason for each statement.
Given:
The equation is
[tex]7(x+1)+11x=-2x-5[/tex]
To find:
The reason for each statement.
Solution:
We have,
[tex]7(x+1)+11x=-2x-5[/tex]
Using distributive property, we get
[tex]7x+7+11x=-2x-5[/tex]
On combine like terms, we get
[tex]18x+7=-2x-5[/tex]
Using addition property of equality, add 2x on both sides.
[tex]20x+7=-5[/tex]
Using subtraction property of equality, subtract 7 from both sides.
[tex]20x=-12[/tex]
Using division property of equality, divide both sides by 20.
[tex]x=-\dfrac{12}{20}[/tex]
[tex]x=-\dfrac{3}{5}[/tex]
Therefore, the required reasons are:
2. Distributive property
3. Combining like terms
4. Addition property of equality
5. Subtraction property of equality
Math, pls answer now for points I wasted 20 points on this ASAP
Answer:
The answer to the problem is J
It takes Mike 10 minutes to do an oil change and 20 minutes to do a tire change. He's working for 60 minutes today. He only has enough tires in stock to change them on 2 cars. If he can earn $10 per oil change, and $40 per tire change, how many of each should he do to maximize profits?
Answer:
2 tire changes and 2 oil changes.
2($40) + 2($10) = $80 + $20 = $100
HELPPPP!!!!!!!!!! PLEASE BRAINLIEST TO THE FIRST CORRECT ANSWER
Answer:
They are congruent.
Step-by-step explanation:
Well, JK and GH segment ends are 8 "blocks" away from each other, so they are congruent.
Problems 11-16, find the domain of each function.
11. 3x + y = 4 All possible x-vales of the function 12
Answer:
Domain: { all real values}
Step-by-step explanation:
3x + y = 4
This is a line
The domain is all possible values for x
X can range from negative infinity to infinity
Domain: { all real values}
Tyler bought a book for $15.00. He had a coupon for 20% off his purchase. How much was the book after the discount? *
Answer:
The book was $12 after the 20% discount
Step-by-step explanation:
Recall that 20% corresponds to the decimal fraction 0.20.
Thus, the price of the book after discount is found by multiplying $15 by
1.00 - 0.20, or 0.80:
0.80($15) = $12
The book was $12 after the 20% discount.
Answer:
$12 usd
Step-by-step explanation:
hope i helped
WILL GIVE BRANLIEST AND 100 POINTS As the blizzard got worse, the snow fell harder and harder.
a
b
c
d
Answer:
A
Step-by-step explanation:
The first one is correct because its growth is exponential, which means it is getting worst as time goes. The amount of snowfall is also rising, unlike in d.
What is the equation in point-slope form of the line that passes through the points (3, -4) and
(-3,-8)?
a. y-8 = {(x+3)
b. y +8 = -(x – 3)
c. y +8 = $(x+3)
d. y-8 = - (x + 3)
Answer:
[tex]y - 8 = - | x - 3| [/tex]
Given (1,-5) and (5,-3), what is the midpoint of the two points?
Answer:
(3,-4)
Step-by-step explanation:
you add the x coordinates then divide them by 2
And then add the y coordinates then divide them by 2
what is 58,413,000,000 in scientific notations
Answer:
[tex]\huge\boxed{58,413,000,000=5.8413\cdot10^{10}}[/tex]
Step-by-step explanation:
The scientific notation:
[tex]a\cdot10^k[/tex]
where
[tex]1\leq a<10,\ k\in\mathbb{Z}[/tex]
We have the number:
[tex]58,413,000,000[/tex]
The decimal point comes after the last zero in that number. We have to move it 10 places to the left.
[tex]5\underbrace{8,412,000,000}_{10}=5\underbrace{.8412000000}_{\leftarrow10}\cdot10^{10}[/tex]
We can skip the trailing zeros.
[tex]58,413,000,000=5.8413\cdot10^{10}[/tex]
Vertical angles are opposite angles that are formed by intersecting lines. these angles are equal to each other. true or false ?
Answer:
True
Step-by-step explanation:
Vertical angles are a pair of opposite angles created by intersecting lines. The Vertical Angles Theorem states that if two angles are vertical, then they are congruent.
