3 years ago

Help! On these questions

1 answer:

3 0

1/4z + 8 = 12
1/4z = 12 - 8
1/4z = 4
z = 4 / (1/4)
z = 4 * 4/1
z = 16 <===
==================
-3(2n + 1) + 7 = -5
-6n - 3 + 7 = -5
-6n + 4 = -5
-6n = -5 - 4
-6n = -9
n = -9/-6
n = 3/2 <===
===================
2.5(t - 2) - 6 = 9
2.5t - 5 - 6 = 9
2.5t - 11 = 9
2.5t = 9 + 11
2.5t = 20
t = 20 / 2.5
t = 8 <===

You might be interested in

Which of these strategies would eliminate a variable in the system of equations?

natali 33 [55]

Answer:Multiply the top equation by -3 , then add the questions .

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

a cylinder has a height that is 2 times as large as its radius. The lateral area of the cylinder is 16pi square units. What is t

Sav [38]

4 ............I think

5 0

3 years ago

Find the volume (V) of the rectangular prism with a length (l) of 6 inches a width (w) of 3 inches and a height (h) of 4 inches.

Svetradugi [14.3K]

72 inches cubed is the answer

6 0

3 years ago

The distance between Columbus,Ohio and New York City is about 560 miles how many hours would it take the train to travel between

sergey [27]

Since the distance is 560 miles and the bus goes 268 miles per hour, the answer can be given as:
If 268=1 hour
560=?
560/268*1 hour =2(rounded to nearest ones)
Therefore it will take the train approximately 2 hours to travel between both cities.

3 0

4 years ago

When written in standard form, the product of (3+x) and (2x-5)

Mariulka [41]

Answer:

2x^2+x-15

Step-by-step explanation:

6x-15+2x^2-5x

2x^2+x-15

5 0

3 years ago