4 years ago

I need the answer on number 5

1 answer:

6 0

I believe Z=18
Example:
2/3z + 1 = 13
Multiply both sides: 2/3z * 3 + 1 * 3 = 13 * 3
Refine: 2/3z + 3 = 39
Subtract from both sides: 2z + 3 - 3 = 39 - 3
Refine: 2z=36
2z/2 = 36/12
Z=18

You might be interested in

John can read 15 pages in 10 minutes. He had 1 hour and 10 minutes before football practice. How many pages can he read before p

krok68 [10]

Answer:

100

Step-by-step explanation:

15 times 6 plus 10 because there is 60 mintues in an hour

7 0

3 years ago

An airplane flies 105 miles in 1/2 hour how far can it fly in 1 and 1/4 at the same rate of speed

Zigmanuir [339]

262.5 miles.

105 x 2 = 210

105 ÷ 2 = 52.2

210 + 52.2 = 262.5 miles

3 0

4 years ago

A dairy farmer plans to enclose a rectangular pasture adjacent to a river. to provide enough grass for the herd, the pasture mus

Ostrovityanka [42]

To solve this problem you must follow the proccedure shown below:

1. You have that the pasture must contain 128 square meters and no fencing is required along the river. Then:

A=LxW

A is the area
L is the lenght
W is the width

2. Let's clear W:

W=A/L
W=128/L

3. The formula of the perimeter is:

P=2L+W

P=2L+(128/L)

4. Now, you must derivate:

dP/dL=0

2+(128/L²)=0
 L=8 meters

W=A/L
W=128/8
W=16 meters

6 0

4 years ago

X=5 2x-3y=4 How do I solve this equation

Xelga [282]

Answer:

$x = 5 \\ \\ 2x - 3y = 4 \\ \\ 2 \times 5 - 3y = 4 \\ \\ 10 - 3y = 4 \\ \\ - 3y = 4 - 10 \\ \\ - 3y = - 6 \\ \\ y = 2$