3 years ago

Mrs. Anderson wrote the statement. “Double three, then add ten to that product." Write a numerical expression.

Mathematics

1 answer:

Ronch [10]3 years ago

8 0

Answer:

Step-by-step explanation:

3x + 10??

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Answer:

AC= 20

Step-by-step explanation:

since the two figures are similar, CB Is congruent to FD

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Step-by-step explanation:

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3 years ago

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vova2212 [387]

Answer:

$97.5 \ ft^2$

Step-by-step explanation:

1. Find the area of rectangle.

Rectangle:

Width = 12 ft

Length = 5 + 10 = 15 ft

$Area=\text{Length}\times \text{Width}\\ \\=12\cdot 15\\ \\=180\ ft^2$

2. Find the area of two white triangles.

a) Right triangle with legs of 12 ft and 10 ft.

$A_1=\dfrac{1}{2}\times \text{Leg}_1\times \text{Leg}_2\\ \\=\dfrac{1}{2}\cdot 10\cdot 12\\ \\=5\cdot 12\\ \\=60\ ft^2$

b) Right triangle with legs of 5 ft and 12 - 3 = 9 ft.

$A_2=\dfrac{1}{2}\times \text{Leg}_1\times \text{Leg}_2\\ \\=\dfrac{1}{2}\cdot 5\cdot 9\\ \\=\dfrac{1}{2}\cdot 45\\ \\=22.5\ ft^2$

3. Find the area of shaded region:

$A_{shaded}\\ \\=A-A_1-A_2\\ \\=180-60-22.5\\ \\=97.5 \ ft^2$

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3 years ago

Mrs. Anderson wrote the statement. “Double three, then add ten to that product." Write a numerical expression.​

Mrs. Anderson wrote the statement. “Double three, then add ten to that product." Write a numerical expression.