Which of the following values of z will result in a true statement when substituted into the given equation?

Mathematics

2 answers:

Kazeer [188]3 years ago

8 0

Z=1 because if we plug it in we get 1/5(3+2(1))-4(1)=-3 and then that goes to 1/5(5)-4 = -3 then 1-4=-3 and that is true

DIA [1.3K]3 years ago

5 0

Answer:

A) z=1

Step-by-step explanation:

1/5(3+2z)-4z=-3

3/5+2/5z-4z=-3

2/5z-20/5z=-3-3/5

-18/5z=-15/5-3/5

-18/5z=-18/5

z=(-18/5)/(-18/5)

z=1

You might be interested in

Please tell me the answer! I'm crying in confusion! :(

Inessa [10]

First, change the fractions to a common denominator, which is 21.

so 3/7 * 3/3 = 9/21

1/3 * 7/7 = 7/21

Add the two together

9/21 + 7/21 = 16/21

Then take 21/21 - 16/21 = 5/21

There is 5/21 of the pizza left.

6 0

4 years ago

Read 2 more answers

regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during th

Galina-37 [17]

An octagon has 8 sides, a rotation of 45° (360°/8) will map the octagon onto its preimage. Answer is 8.

7 0

3 years ago

Write each answer in scientific notation (2x10^-3)^3

Advocard [28]

8*10^-9 I'm pretty sure

8 0

3 years ago

Please help, im confused

elixir [45]

It look like that.
Diameter = 2 so the radius = 1/2 * diameter = 1in

Volume of the cylinder = pi r^2 h

where h = height of the cylinder = 9 in

so volume = pi * 1^2 * 9 = 28.27 in^2 to nearest hundredth

8 0

3 years ago

On one day a pet store sells 2 birds 6 gerbils 3 fish and 3 hamsters whats the data and relative frequency as a percent?

bonufazy [111]

Answer:

Birds $F_b=14.3\%$