3 years ago

Solve this inequality: the sum of twice a number and four is at least 16

Mathematics

1 answer:

lesantik [10]3 years ago

5 0

Answer:

x ≥ 6

Step-by-step explanation:

the equation for this is 2x (the sum of twice a number) + 4 (and 4) ≥ 16 (is at least 16

2x + 4 ≥ 16

subtract 4 from both sides (4 and 16)

you get 2x ≥ 12

divide both sides by 2 (2x and 12)

you get x ≥ 6

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18 because it all the kids can fit in all the vans

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4 years ago

Mr. Jamison will stain the deck in his backyard. The deck has an area of 752.4 square feet. If the deck is 33 feet long, how wid

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4 years ago

Read 2 more answers

The surface area of a rectangular prism is 2,280 square feet. If the width and height are 20 and 15 feet, the length of the pris

kolbaska11 [484]

Answer:

The statement is trrue.

Step-by-step explanation:

Given that,

The surface area of a rectangular prism = 2,280 square feet

Width, b =20 feet

Height, h = 15 feet

The formula for the surface area of a rectangular prism is given by :

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

Where

l is the length of the prism

Substitute all the values,

$A=2(lb+bh+hl)\\\\2,280=2(20l+20\times 15+15l)\\\\1140=(20l+20\times 15+15l)\\\\1140=35l+300\\\\1140-300=35l\\\\35l=840\\\\l=24\ feet$

So, the length of the prism is equal to 24 feet.

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3 years ago

Solve the inequality. Graph the solution.<br><br> −2>m6−7

andrew11 [14]

Answer:

Slope: -12
Y intercept: (0,-7)

X. |. Y
______
-1 5
-1. 5

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3 years ago

You have a trailer with the following dimensions. Height 125cm. Length 2.4m. Width 1.65m. How much cub sand will you be able to

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Answer:

18.75m³ of sand

Step-by-step explanation:

volume =lbh

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3 years ago