Mathematics Middle School

Solve 7(y + 2) – (4y – 10) = 44 – 2y + 5
A.y = -5
B.y = 5
C.y = -10

Answers

Answer 1

Answer:

y = 5

Step-by-step explanation:

7(y + 2) – (4y – 10) = 44 – 2y + 5

(7y+14) - (4y - 10) = 49 -2y

3y +24 = 49 -2y

5y +24 = 49

5y = 25

y = 5

Answer 2

Answer:

y=5

Step-by-step explanation:

7(y+2)-(4y-10) = 44-2y+5 distribute on the left and combine like terms on the right side of the equation

7y + 14 -4y +10 = 49 - 2y move every term with a variable on the left side with a change sign and the numbers on the right side

7y-4y+2y =49 -14 -10

5y = 25 divide both sides by 5

y5/5=25/5 so

y=5

Related Questions

The ratio of the number of girls to the number of boys in choir is 4 to 5. There are 32 girls in the choir. How many boys are in the choir?

Answers

Answer:

what grade is this

Step-by-step explanation:

8. 32/4 is 8. 1/5 is boys, so no need to multiply. (answer is 8)

please help! i’m having a rough time on this, could someone answer this question?

Answers

Answer:

y= -18

a= -18

Step-by-step explanation:

2y+3 = 3(y+7)

2y+3=3y+21

     -21     -21

2y-18=3y

-2y      -2y

-18=y

Slope-intercept form
find out the y intercept and slope

Answers

Answer:

18. Slope (m) = 1/2

Y-intercept (b) = -6

19. Slope (m) = 2

Y-intercep (b) = 8

20. y = 1/2 + 6

Step-by-step explanation:

y = mx + b

y - 2x = 8

y = 2x + 8

18.slope (m) = 1/2
Y - intercept

A fruit basket contains only apples and bananas. If there are 8 apples and 13 bananas, what is the ratio of bananas to fruit? Select all that apply. 13:8

Answers

Answer:

The ratio of bananas to total fruit is 13:21

Step-by-step explanation:

Since we already know the amount of apples and pears, we can find the total. 13+8=21, and since we know the number of pears, 13, we can say that the ratio is 13:21.

Answer: 13:21

13:21 is the correct answer I hope it helps

Create a simple equation that has infinite solutions, and a simple equation that has no solutions

Answers

Answer:

-9m - 4 = -9m - 4 and one that doesn't have any solution is -4 + 2b = 2b - 9

Step-by-step explanation:

100 ÷ 33.33333333333333♾

please help me i need two answers

Answers

its the first one and the last one

Answer:

-7 3/4x-7(3)

7(-3/4x)-7(3)

Step-by-step explanation:

‍HELPPPPPPPP TYYY <333

Answers

Answer:

D (0, -2), (1, 0), (3, 3), (4, -5)

Step-by-step explanation:

The first number in a coordinate pair (x, y) is the x, so the first number is how much left or right you go, where the second number is how far up or down you go. if the (x) is negative, you go left, if it's positive you go right, of the (y) is negative you go down, if it's positive you go up.

Answer:

D

Step-by-step explanation:

PLS HELP NEEDED TODAY

Answers

A: 4 percent - 4% + 98 = 101.92

B:

Way One: 110 times 0.10 is 11. 110 - 11 = 99
Way Two: 110 times 0.90 is 99

C: yes, it would make sense to switch to company B because they have a lower price after discount.

there are 200 freshmen in a high school. 30% of them take history. how many freshmen are enrolled in Spanish?

Answers

pretty sure it’s 140

The perimeter of the original rectangle on the left is 30 meters. The perimeter of the reduced rectangle on the right is 24 meters. What is x, the width of the original rectangle on the left? Round to the nearest hundredth if necessary.

A) 5 meters
B) 8 meters
C) 10 meters
D) 12 meters

Answers

X=5



Explanation:


If the triangle on the rights perimeter is 24 and two of the lengths are 8 then we know 8+8=16 24-16=8 8/2=4
So the triangle on the right has the numbers 8 and 4 as it’s length and width

So then you would find out how much it was dilated to get from 30 to 24
30/24 and you get 1.25 so you multiply 4 by 1.25 and get 5, and then to double check you can multiply 8 by 1.25 and get 10 then add it all together
5+5+10+10=30 so you know that’s correct.

What is the Law of Exponents?

Answers

Answer:

The exponent of a number says how many times to use the number in a multiplication.

Example:

[tex]8^{2}[/tex] = 8 × 8 = 64

Assume that the cheetah travels an average of 40 mph to go from its resting place to a rock near a river. On the return trip to its resting place, the cheetah travels an average of 70 mph. If the cheetah traveled for 15 minutes, how many minutes did the return trip take to the nearest minute and second?
Set up the table as follows. Label the rows “To the River” and “From the River.” Label the columns “Distance,” “Rate,” and “Time (in Hours).” Let t represent the unknown quantity in the problem. Fill in the table.

Answers

Answer:

9.55 minutes

Step-by-step explanation:

x hours to go to the river

0.25-x hours to come back, since 15 minutes is 0.25 hr.

to the river 40 mph * x hours =40x miles

from the river 70 mph (0.25-x) hours=17.5-70x

those two are equal

40x=17.5-70x

110x=17.5

x=17.5/110=0.159 hours

9.55 minutes

Help, this is so confusing.

Answers

Answer:

D. $0.05

Step-by-step explanation:

Don't worry! I'll help you through it.

So we just have to find the unit rate (price) per apple.

$4 divided by 5lbs bag = $0.80 so, The 1st bag is $0.80 an apple.

$6 bag divided by 8lb = $0.75 an apple.

Now, simply subtract

0.80

-0.75

0.05

So your answer is D, $0.05

Have a great day!

~PumpkinSpice1

0.05 is the answer because the unit rates are 0.8 and 0.75

I need help with this ASAP!!!

Answers

Answer:

5.-2<x  

3.x-2 <0

2. 2<x

1.x<-2

4.x>2

Step-by-step explanation:

i think it could be sum else

Answer:

Step-by-step explanation:

-2x

Is the table above proportional or non-proportional?

Answers

Answer: I think you should divide them all and if you get the same answer it’s proportional if you don’t get the same answer it’s non-proportional

Step-by-step explanation:

Answer:

It is non-proportional.

Step-by-step explanation:

The table is non-proportional because it expresses a curved line instead of a straight line.

1/2(12w+8) -1/5(10w-5) find the difference

Answers

1/2(12w+8) -1/5(10w-5) = 4w + 3 or 4w + 5

( im kinda confused on this myself)

Answer: 4w + 5
(extra characters)

What is the multiplicative rate of change of the function?

1/3
2/3
2
9

Answers

Answer:

it is 2/3.

Step-by-step explanation:

please mark as brainliest .

2/3

As x increases by 1
Y decreases by a rate of 2/3.
6x2/3=4
4x2/3=8/3
And so on
To find 2/3, all you need to do is find how y is changing.
First of all, we know that y is decreasing as x increases so the rate is less than 1.
Take y2/y1 to get m or the rate
Ex. 4/6=2/3 which is less than 1!

Hope this helps!!

PLEASE HELP ME. THIS IS DUE TODAY
The table shows the relationship between X and Y.

X | Y

3 | 163.5

6 | 327

11 | 599.5


Which equation models this relationship?

A. y = 53x

B. y = 53.5x

C. y = 54x

D. y = 54.5x


PLEASE ANSWER I NEED THIS THE ANSWER NOW

Answers

Answer: C. y = 54x



Explanation:

Hope this helps you :)

An equation which models the relationship between X and Y is

y = 54.5x

The correct answer is option (D) y = 54.5x

What is equation?

"A mathematical statement which contains an equal symbol between two algebraic expressions that have the same value."

From given data we can observe that,

163.5/3 = 54.5                           ...................(1)

327/6 = 54.5                              ...................(2)

599.5/11 = 54.5                          ...................(3)

From (1), (2) and (3),

y/x = 54.5

⇒ y = (54.5)x

Therefore, an equation which models the relationship between X and Y is y = 54.5x

The correct answer is option (D).

Learn more about relationship between variables here:

https://brainly.com/question/17248931

#SPJ2

pls help me i dont understand it.....................

Answers

Brainliest pls






To the person above me :)

Which situation represents a proportional relationship?

a
The cost of purchasing a basket of oranges for $1.30 per pound plus $5.00 for the basket.
b
The cost of purchasing grapefruit for $1.80 per pound with a coupon for $1.00 off the total cost.
c
The cost of purchasing apples for $1.75 per pound plus a shipping fee of $0.16 per pound.
d
The cost of purchasing peaches for $7.00 per box of peaches with a delivery charge of $3.00.

Answers

I’m pretty sure it is C? But I’m not 100% sure
I think its either c or d im not sure though but it might be c

base= 1.5 area=2 but what does height equal

Answers

I think the answer is 3

Answer:

i think its 1.33 repeating

Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLEASE

Answers

Answer:

use formula

area = 1/2 *Height *(side 1 + side 2)

Answer:

use the equation of area of parallelogram = height ×base

Find the slope...........

Answers

First thing to do is find out the coordinates of two points on the graph (I will use the ones that have been marked by the red dots):

Point A: (3, -1)
Point B: (1, 2)

Then we will use the slope formula to work out the slope:

y₂ - y₁ / x₂ - x₁

Substitute in our points:

2 - (-1) / 1 - 3

Then we work out the expression (remember a negative and a negative make a positive!):

3 / -2

Then we check if we can simplify this fraction, which in this case we cannot.

Therefore the slope of that line would be:

3 / -2

(remember to write it as a fraction!)

Which of the following equations is equivalent to 3(a + 4) – 5(a – 2) = 22?
-2a + 2 = 22
8a + 2 = 22
8a + 22 = 22
-2a + 22 = 22

Answers

-2a+2=22

3(a+4)-5(a-2)=22
3a+12-5a-10=22
-2a+12-10=22
-2a+2=22

Could someone please find the rate and y-intercept for these two points? (2,2) and (3,4) the help would be greatly appreciated!!

Answers

First use a formula to find rate of change
so a formula most commonly used is (y^1-y^2)/(x^1-x^2)

m= (y^1-y^2)/(x^1-x^2)
=m=(4-2)/(3-2)
=m=2/1
2/1 can also be expressed as just 2 since anything divided by 1 is just itself

Now use the formula y=mx+b to find the y intercept

use either of your two given point to susitute y and x

y=mx+b
Substitute your values
=(4)=(2)(3)+b
Calculate
=4=6+b
Subtract both sides by 6
=-2=b

Therefore the rate of change is 2/1 and the y-intercept is -2

The temperature was -10 Fahrenheit at 8:00 PM one day in Denver. A cold front lowered the temperature over the next hour by 3 degrees. What was the new temperature at 9:00 PM?

Answers

Answer:

-13 degrees Fahrenheit

Step-by-step explanation:

3 degrees lower then -10 degrees would be -13.

Answer:

-13 Fahrenheit

Step-by-step explanation:

How many solutions does this equation have?

5t = 5t + 5

Answers

Answer:

There are no solutions, there are no values of T that make this equation true.

Step-by-step explanation:

Therefore, there are no solutions.

Hope it helps!

Which expression can be used to find the number of liters in 15 quarts?
15/1 x 0.95/1
15/1 x 0.95/1
15/1 x 1/0.95
15/1 x 1/0.95

Answers

I’m not sure but I will say 15/1 0.95

Answer:

the 3rd one

Step-by-step explanation:

Please help!!! Will try my best to give brainliest!!!!


Find the GCF of n 3t ^2 and nt 4.


n ^3t^ 6

n ^3t ^4

nt ^2

n^ 4t^ 6

Answers

Answer: nt ^ 2
:))))

Answer:

for this question is nt^2 or C

Step-by-step explanation:

help meeee please HELPPPPPPPP

Answers

No the mixtures are not the same shade of purple. The reason is because when both mixtures use 21 cups of red paints the original recipe uses 14 cups of blue paint, while the new mixtures uses 15 cups if blue paint, Therefore the New Mixture would be more blue than the Original mixture

Answer:

they are different because the original paint goes 123456 and the new pait goes 246810.

Step-by-step explanation:

hope this helps!

Other Questions
Which is your favourite social media and why? Which of these was NOT a factor in why the Spanish, with fewer men, were able to eventuallyconquer the Aztec Empire? A set of average city temperatures in October are normally distributed with a mean of 20.6C20.6 C20, point, 6, degrees, start text, C, end text and a standard deviation of 2C2 C2, degrees, start text, C, end text.What proportion of temperatures are between 18C18 C18, degrees, start text, C, end text and 20.6C20.6 C20, point, 6, degrees, start text, C, end text? Which paragraph best supports the idea that finding King Tutankhamun's tomb required a lot of time and money?A-paragraph 3B-paragraph 5C-paragraph 9D-paragraph 12 Mandarin speakers, can someone please help me fix this? It has many grammar mistakes pls help me asap!! NEED HELP ASAP1) Is Sulfur a metal or nonmetal? _______________________2) Which family is Calcium in? _________________________3) What is the Elements name for the element that has the atomic number 72?_______________________________________________________________4) What is the atomic mass of Thallium? _________________________5) What are all the atomic symbols for the Noble gases?__________________________________________________________________________________________________________________________________________________________________________________________________________________6) What are all the Elements names in the metalloids?__________________________________________________________________________________________________________________________________________________________________________________________________________________7) What are all the atomic masses for the Actinides?__________________________________________________________________________________________________________________________________________________________________________________________________________________8)How many protons does Arsenic have? __________________9) How many electrons does Radium have? ________________10) How many neutrons does Nickel have? ________________ SUPER URGENT ANSWER BOTHHHHH QUESTIONSI WILL DEF MARK BRAINLYESTREAD CARFULLY! If one of yall know the answer could you please tell me I would really appreciate it What is the area of a semicircle with a diameter of 10 cm? 38. By the commutative property, 3(w +9) isequivalent to which expression?A. 3w + 9B. 3w + 27C.D. 3(9+ w) Read about Lewis Hine, a Progressive photographer. Then visit this gallery and choose at least three different photos that provoke a strong reaction from you. In the table, note the titles of the photos you chose and describe and reflect on the conditions depicted in each photo. One example has been provided for you. Describe the requirements for voting in the U.S. How have the rules changed over time? Use facts and details with at least 2 paragraphs. if you spun the spinner 100 times would you expect it to land on red Hello! Did anyone took the isat ( International student admission test) ?? Please let me know ! Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions. PLS HELP ILL GIVE BRAINLIEST whats your faveroir song 3. Your friend from Australia (in the Southern Hemisphere) has never seen the star Polaris.Provide an explanation for why your Australian friend cannot see Polaris.Text to speech how much does dog whisperer Cesar Millan charge to help a dog? If a lost male child is found who is 145 cm tall, determine an interval of likely ages for the child. Give whole numbers. age Mr. Kimball sells computer software. He earns a base salary of $41,250 and 8% commission on his sales. Write an equation to represent Mr. Kimballs total pay p after selling d dollars of software.