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3 years ago

Solve for z 3z-5+2z=25-5z

Mathematics

2 answers:

Semenov [28]3 years ago

4 0

Answer:

z=3

Step-by-step explanation:

1. collect like terms

5z-5=25-5z

2. Move the variable to the left hand side and change its sign

5z-5+5z=25

3. Collect like terms

10z=25+5

4. Divide both sides of the equation by 10

z=3

iren [92.7K]3 years ago

3 0

Answer:

z=3

Step-by-step explanation:

Add 3z and 2z

5z-5=25-5z

Add 5z on both sides to eliminate the -5z on the RHS

10z-5=25

Add 5 on both sides to eliminate the -5 on the LHS

10z=30

Divide by 10

z=3

Hope this helps!

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2 years ago

Rodrigo bought a pumpkin pie for $4.85 and a can of whipped cream for $1.55. He gave the cashier $7.00. How much change should R

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Answer:
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2 years ago

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poizon [28]

Answer:

96 square inches.

Step-by-step explanation:

From given picture we see that

BC=8 in

AD=10 in

Given that

AD=AB

Then AB=10 in

Apply Pythagorean theorem in triangle ABC to find AC

$(hypotenuse)^2=(base)^2+(perpendicular)^2$

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take square root

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Then area of triangle ABC $=\frac{1}{2}\left(base\right)\left(altitude\right)$

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