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3 years ago

Please please give answer

Mathematics

1 answer:

rodikova [14]3 years ago

8 0

Answer:

Then the total area is 116 cm^2 which agrees with answer D

Step-by-step explanation:

Notice we need to calculate the area of two rectangles (one larger at the bottom and a smaller one on top)

The Area of a rectangle is the product: base x height

In our case :

Area of Big rectangle = 12 cm x 7 cm = 84 cm^2

Area of smaller rectangle = 8 cm x 4 cm = 32 cm^2

Then the total area is: 84 cm^2 + 32 cm^2 = 116 cm^2

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disa [49]

Hello from MrBillDoesMath!

Answer:

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3 years ago

Read 2 more answers

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jarptica [38.1K]

Answer:

$10x−15$

Step-by-step explanation:

$5(2x−3)$

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6 0

3 years ago

Darla needs to purchase nine more stamps than envelops. Each stamp cost $0.10, and each envelope costs $0.13 . If she pays $2.51

sp2606 [1]

This is a systems of equations.

s = stamp, e = envelope

$\left \{ {{e + 9 = s} \atop {.1s+.13e=2.51}} \right.$

Substitute e + 9 for s.

.1(e + 9) + .13e = 2.51

Simplify.

.1e + .9 + .13e = 2.51

Simplify.

.14e + .9 = 2.51

Subtract .9 from both sides.

.14e = 1.61

Divide both sides by .14.

e = 11.5

Now, you can input e into the other equation.

11.5 + 9 = s

Simplify.

20.5 = s

s = 20.5, e = 11.5

5 0

4 years ago