3 years ago

WILL GIVE BRAINLIES HELP ASAP Select the correct answer from each drop-down menu.

Mathematics

1 answer:

Ainat [17]3 years ago

5 0

Answer:

Step-by-step explanation:

1. Set up a ratio proportion

$\frac{30}{40} =\frac{x}{100}$

2. Cross Multiply

3000=40x

3. Divide both sides by 40 to isolate x

$\frac{3000}{40} =\frac{40x}{40}$

4. Solve

75=x

You might be interested in

27 pounds of tomatoes cost $270 how many pounds of tomatoes can you get with $20?

Zolol [24]

Answer:

Step-by-step explanation:

270/27 = 10 so each pound is $10

5 0

3 years ago

Read 2 more answers

All the comic books in a store are the same price. If Vera buys 3 comic books for $7.50, how much do 7 comic books cost?

brilliants [131]

Answer:

the answer is 17.5

Step-by-step explanation:

If you do 7.50 divided by 3 it gets you 2.5 then do 2.5 times 7 and its gets you 17.5

Your Welcome!

8 0

3 years ago

PLEASE HELP NOW 50 POINTS AND BRAINLIEST IF YOU ANSWER NOW

gregori [183]

1) Given
2) Definition of supplementary
3) Substitution
4) Exterior sides in opposite rays.

3 0

4 years ago

Read 2 more answers

Calculate -2 x 5 + 6

faust18 [17]

-2 times 5 is -10 and then you add a 6 which equals -4

4 0

3 years ago

Read 2 more answers

5miles = 8km. How many km in 80miles?

Zina [86]

Answer:

128

Step-by-step explanation:

Set this up as a proportion with miles on the top and km on the bottom:

$\frac{mi}{km}:\frac{5}{8}$

If we want to know how many km are in 80 miles, we put the variable with the km stuff on the bottom and 80 on top and cross multiply to solve for the variable:

$\frac{mi}{km}:\frac{5}{8}=\frac{80}{x}$ so

5x = 640 and

x = 128

That means that 80 miles is equivalent to 128 km

4 0

4 years ago