5.
-4n+ 7+ 2n= 1
⇒ (-4n+ 2n)+ 7= 1 (combine like terms)
⇒ -2n= 1-7
⇒ -2n= -6
⇒ n= -6/(-2)
⇒ n= 3

Final answer: B. 3~

6. 4(y-4)= 8
⇒ y-4= 8/4
⇒ y-4= 2
⇒ y= 2+4
⇒ y= 6

Final answer: D. 6~

3 0

3 years ago

Read 2 more answers

⅔ x 6/7 ÷ 8/14 help please

ahrayia [7]

Answer:

Step-by-step explanation:

$\frac{2}{3} *\frac{6}{7}$ ÷ $\frac{8}{14}$

= $\frac{2}{3} *\frac{6}{7} *\frac{14}{8}$

= $\frac{2}{3} *\frac{6}{7} *\frac{7}{4}$

= $\frac{2*6*7}{3*7*4}$

= $\frac{84}{84}$

8 0

3 years ago

Read 2 more answers

Given a battery rated at 350 ampere-hours how many hours will the battery be able to provide 7 amperes

coldgirl [10]

From the division computed, it should be noted that the number of hours that the battery will be able to provide 7 amperes will be 50 hours.

The information given is about the division of numbers. It was stated that the battery is rated at 350 ampere-hours.

The number of hours that it will be able to provide 7 amperes will be:

= 350 / 7

= 50 hours.

Learn more about division on:

brainly.com/question/24834472

7 0

2 years ago

can company makes a cylindrical can that has a radius of 6 cm and a height of 10 cm. One of the company's clients needs a cylind

shutvik [7]

the new radius be to meet the client's need is 4.9 cm .

<u>Step-by-step explanation:</u>

Here we have , can company makes a cylindrical can that has a radius of 6 cm and a height of 10 cm. One of the company's clients needs a cylindrical can that has the same volume but is 15 cm tall. We need to find What must the new radius be to meet the client's need . Let's find out:

Let we have two cylinders of volume $V_1 , V_2$ with parameters as follows :