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3 years ago

Write an equation the sum of two times a number and 5 is 11

Mathematics

1 answer:

podryga [215]3 years ago

5 0

5+2x=11 (this is the equation)
-5 -5 
2x=6 (this is the answer)
x=3

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A prism is completely filled with 1120 cubes that have edge lengths of 1/2 in. What is the volume of the prism?

DedPeter [7]

Answer:

Volume of the prism = 140 cubic inches.

Step-by-step explanation:

The edge length of the cube is 1/2 inches.

The volume of the cube is given by

$\text{Volume}=(\text{edge})^3\\\\V=(1/2)^3\\\\V=0.125$

Now, it has been given that there are 1120 cube is completely filled in the prism. Hence, we have to the multiply the volume by 1120.

Volume of the prism = 1120 × 0.125

Volume of the prism = 140 cubic inches.

6 0

3 years ago

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When making a book cover, Anwar adds an additional 20 square inches to the surface area to allow for overlap. How many square in

e-lub [12.9K]

Answer:

234 square inches

Step-by-step explanation:

We are given that

Length of book, l=11 in

Width of book, w=8 in

Height of book, h=1in

Additional area required to overlap=20 square inches

We have to find how many square inches of paper to make cover of one book.

We know that surface area of cuboid

$S=2(lb+bh+hl)$

Using the formula

Surface area of book

$S=2(11\times 8+8\times 1+1\times 11)$

$S=214 in^2$

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= $214+20$

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3 years ago

I'm doing Quadratic formula and I've simplified it down to the equation at the bottom. What do I do after? Is that my answer bec

givi [52]

No you could have left it as the last but one line or write them separately as

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3 years ago

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AfilCa [17]

Answer:

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Step-by-step explanation:

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y=3x+ -4

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So, the equation in slope intercept form is

y=3x-4

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SpyIntel [72]

Answer:

B or the third option you put.

Step-by-step explanation:

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