Mathematics Middle School

Which expression is equivalent to: 7a + 5 (Give an explanation)

A. 3a + 4 + 5
B. 3a + 4a + 5
C. 3a + 4a + 5a
D. 7 + 5

Answers

Answer 1
D is the answer I believe

Related Questions

Solve the following proportion for v.
7/3 = v/8
Round your answer to the nearest tenth.

Answers

Answer:

18.6, 56/3, 18 2/3

Step-by-step explanation:

cross multiply

swap the side

divide both side

Answer:
18.6 or 18 2/3

It snowed 17 feet 8 inches in Michigan. How many inches is that?!?!?

Answers

That’s 212 inches. 17ft=204in + 8in
212 inches is the answer

A Japanese bullet train recently maintained an average speed of 317.5 km/h for a trip that lasted 3h 15 min.

a) Calculate the distance covered by the train on that trip.
b) At the same speed, how long would it take the train to travel 1000 km?

Answers

A. (317.5 km/h) * (3.15) = 1,000.125 km

please help me with this i will mark brainliest

Answers

Answer:

w=93

Step-by-step explanation:

Answer:

= 93

Step-by-step explanation:

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x. What is the constant of proportionality?

Answers

it should be 135





hope this helps

The constant of proportionality is 225.

Given that,

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x

Based on the above information, the calculation is as follows:

y = kx

So here the constant should be 225.

Learn more: brainly.com/question/17429689

A grizzly bear’s top speed is about 36 mph. This speed makes the bear about 1 times as fast as an African elephant.

What is the top speed of an African elephant?
A. An African elephant can reach a top speed of about 48 mph because .
B. An African elephant can reach a top speed of about 39 mph because .
C. An African elephant can reach a top speed of about 34 mph because .
D. An African elephant can reach a top speed of about 24 mph because .

Answers

The answer im pretty sure is C

Answer:

The answer is A

Step-by-step explanation:

Because the answer says this speed makes the grizzly bear about 1 times as fast as an African elephant

Find the circumference of a circle with a radius of 6 inches. Use 3.14 for pi.

Answers

Answer:

37.7in

Step-by-step explanation:

Took the test

Which fraction is easier to convert into a decimal?

11/18 or 43/50, explain

Answers

43/50 is easier because 50 is half of 100

Watch this

43/50. Since 50 is HALF of 100 so we multiply 2 by 50 which is 100. But since we multiplied by 2 for the denominator we have to do the same for the numerator so 43 x 2 is equal to 86.

So we get 86/100 which is 0.86

43/50 decimal 0.87

It's easier to turn into a decimal because both are bigger numbers and and closer to each other so it would be easier to divide

Enter the proper order needed to unlock PATCH the Pirate's treasure chest.

Here are some hints to help you.

The first number of your order needs to be placed on top.
Placing the numbers in order from least to greatest would be incorrect.
Do you notice anything about the variables PATCH used to create his equations?
If one of your previous answers in the project do not match the numbers below, you need to go back and re-solve that problem!

A
2

B
5

C
6

D
3

E
9

Answers

Answer:

ecbda

Step-by-step explanation:

Abir walks four twelfths of a mile to school. Nadia walks two twelfths of a mile to school. How much farther does Abir walk than Nadia?

Question 6 options:

eight twelfths of a mile


six twelfths of a mile


four twelfths of a mile


two twelfths of a mile

Answers

Answer:

Step-by-step explanation:

four twelfths minus two twelfths equals two twelfths

Answer:

b

Step-by-step explanation:

me need help whit this

Answers

Answer:

it's is your answer to this question 1000 ÷ 74 = 74000

It’s 74000 hopefully this helps you

The surface area of the box is 576 square units
the dimensions are 6 in tall 12 in wide and 12 in long
what is the surface area if scaled up by a factor of 10

Answers

Answer:

thats hard ill think

Step-by-step explanation:

I need help with this question attached

Answers

Answer:

17 feet

Step-by-step explanation:

The structure is shaped as a right triangle.

Use the Pythagorean theorem to solve for 'c' or the hypotenuse.

[tex]a^2+b^2=c^2\\\\8^2+15^2=c^2\\\\64+225=c^2\\\\289=c^2\\\\\sqrt{289} =\sqrt{c^2}\\\\17, -17 = c\\\\\text{Disregard negative value.}\\\\\boxed{17=c}[/tex]

The hypotenuse should be 17 feet.

Hope this helps!

Answer: 17 ft.

Step-by-step explanation: By using the pythagorean theorem (a^2 + b^2 = c^2) for right triangles, you should be left with the given equation after plugging in the values of the legs:

8^2 + 15^2 = c^2

Now simplify the squares

64 + 225 = 289 (c^2)

Now to find the exact value of the hypotenuse (c), square root the value of c^2.

√289 = 17

The hypotenuse of the triangles is 17 ft.

A map company used a scale of 1 inch : 380 meters to depict the heights of different mountains. What is the height of a mountain on map, which is actually
3420 meters high?
The height of the mountain on the map is
inches

Answers

Answer:

more info or is that it

Step-by-step explanation:

Sheila shoots 25 free throws in basketball practice. She makes 17. What percent of her free throws does Sheila make?
A. 17%
B. 34%
C. 43%
D.68%

Answers

Answer:

D

Step-by-step explanation:

because I know it is

why do I have to have 20 characters

68% Would appreciate if u marked me brainlyest

$800 at 3.8% interest for 6 months
What is the interest?

What is the new balance?

Answers

Use the equation I/PT = R I is the interest P is the money before investment and T is the time
Multiply then divide

What was the underlying reason that many states wanted the Bill of Rights to be part of the constitution?
Please help! Tysm!

Answers

Answer:

The Bill of Rights was part of a compromise that the federalist made to ensure the proposed federal government could not impinge on the basic rights of it's citizens.

Step-by-step explanation:

Answer:

so the government could not take there rights and act like the king of england did they wanted protection and abilities that could be protected from the government

Step-by-step explanation:

Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that the car traveled on each gallon of gas?
16.5x = 465.3
StartFraction x over 16.5 EndFraction = 465.3
465.3 x = 16.5
StartFraction x over 265.3 EndFraction = 16.5

Answers

Answer:

it A

Step-by-step explanation:

pLEASE HELP ME
Carlos has $40 to spend on food for a barbeque. He wants to buy hot dogs and hamburgers and then buns for each. Carlos has already spent $31.56 on the hot dogs and hamburgers. Write and solve an equation to find, r, the amount of money Carlos can spend on rolls. Make sure to show all work. [3 points]
Equation:
Solution:

Answers

Answer:

40=31.56+r     r=8.44

Step-by-step explanation:

40   =  31.56 + r

-31.56 -31,56

8.44=x

Hope this helps :)

what is the solution

Answers

Answer:

1+1=a a=solution

Step-by-step explanation:

The solution is 1+1=a

Identify C on the following diagram (will report if you are here for points)

Answers:

origin

x-axis

y-axis

quadrant I

Answers

Answer:

The x - axis

Step-by-step explanation:

The line that is horrizontal is always the x - axis

the answer to that one is 17 x 58 + 42 x y.

Solve 1+1/2(y−2)=3/2x for y. Then tell whether x and y show direct variation.

Answers

Answer:

1+1/2(3x−2)=3/2x

y = 3x

guys need help with this question NOTE: the answer is a mixed number not a whole number.

Answers

Answer:

5 2/5

Step-by-step explanation:

help me please :) fvbyhbunybftfr ✋

Answers

It’s C.Because the first 180 is the original use age and the + 180*0.4 will be the next increase

Answer:

c

Step-by-step explanation:

because 0.4 is 40% and the equation says 180+(0.4)(180) which is basically just "180 bags + 40% of 180"

What does x=

what is the statement true or false.

Answers

Answer: X= -14

Step-by-step explanation:

2x-5x-6=36

3x-6=36

36+6 =42

-3x=42

42÷-3

X= -14

It’s X=-14 hopefully this helps you:)

I’m confused can someone explain?

Answers

Answer:

It is 150 percent

Step-by-step explanation:

You can find this value by dividing the numerator by the denominator, summing this value to the integer part and multiplying the result by 100%, so:

1 1/2 in percent = (1 + 1/2) × 100% =

(1 + 0.5) × 100% = 1.5 × 100% = 150%

Hope this helps! Sorry if I'm wrong.

Answer:

150%

Step-by-step explanation:

112=1+12

i know that

12

is the same as

1÷2

Therefore:

112=1+(1÷2)

Then using

Long Division for 1 divided by 2

we have

=1+0.5=1.5

Converting our number to a percentage:

1.5×100

=150%

In the figure, a∥e, m∥n, and m∠3 = 112°. What is the m∠1? Enter your answer in the box. ° Lines n and m (reading from top to bottom) are parallel to each other, and lines a and e are parallel to each other. The two pairs of lines intersect each other. Lines m and n start at top left and drop to the bottom right. Lines a and e rise from left to right. Only six of the sixteen angles created are labelled. Angle one is the top angle made by lines n and a. Angle two is the bottom angle. Angle three is the bottom angle made by lines m and a. Angle four is the top angle made by lines n and e. Angle five is the left angle. Angle six is the bottom angle made by lines m and e.

Answers

<1 = <2

vertical angles (congruent)

<3 = <2

corresponding angles (congruent)

so that: <1 = <2 = <3 = 112 degree

I hoped i helped! Pls give brainly if this helped :D

Have a amazing day!

-Yumi

Answer:

112 degrees

Step-by-step explanation:

i took the test :p

Chandler's salary used to be $161,280. After changing the amount of time he works, he has begun earning $169,344. By what percent did Chandler's salary increase?

Ack please help with this, and please please don't just put some random answer, just to get points, I really have no idea how to do this.

Answers

Chandlers salary increased by 5 percent, to find this answer you take his new salary and divide it by its old and the decimal is the percentage increase
It increased 8,000 so that means it went up 8 percent sorry if I’m wrong.

The point (-8,-7) is reflected across the x-axis. What quadrant is the new point located in?

Answers

Answer- (-8,7) if you reflect over the x axis the c value stays the same and the y value flips
Quadrant 3 on the y axis

The mass of Hinto's math book is 4,312 grams. What is the mass of 5 math books in kilograms? (Round your answer to the nearest thousandth.)​

Answers

Answer: 21560 grams

ROUNDED IT WOULD BE

22000 grams

Step-by-step explanation:

4312 x 5 = 21560

The answers 22000 rounded to the neArest thousand
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