2 years ago

What are the expressions are equivalent to the one below check all that apply parentheses 5 * 2 - 7

Mathematics

1 answer:

TiliK225 [7]2 years ago

7 0

You forgot to include pic of all expressions below

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It takes 23 minutes for 6people to paint 6 walls.

Step2247 [10]

It would take 9 people 34.5 minutes to paint 9 walls.

23 divided by 6 equals 3.83. That is how many minutes it takes one person to paint one wall. Multiply 3.83 by 9 and you get your answer, 34.5 minutes.

5 0

3 years ago

Suppose a lake has a surface area of about 748 acres and an average depth of about 18 feet. About how many cubic feet are in the

zloy xaker [14]

Answer: There are 13464 cubic feet in the lake.

Step-by-step explanation:

Since we have given that

Surface area of lake = 748 acres

Average depth of lake = 18 feet

So, Volume of lake would be

Surface area of lake × Average depth

$=748\times 18\\\\=13464$

Hence, there are 13464 cubic feet in the lake.

6 0

3 years ago

The rear wheel of a lawn tractor has a 20-inch radius. Find the angle (in radians) through which a wheel rotates in 23 seconds i

Minchanka [31]

Answer:

263.12 radians

Step-by-step explanation:

The length of the rear wheel is given by:

$L=2\pi r\\L=40\pi$

The distance traveled by the lawn tractor in 23 seconds is:

$d=13\frac{miles}{hour} *63360\frac{inch}{miles}*\frac{1\ hour}{3600\ seconds}*23\ seconds\\ d=5,262.4\ inches$

The angle through which a wheel rotates is given by:

$A=\frac{d}{L}*2\pi \\A=\frac{5,262.4}{40\pi}*2\pi\\A=263.12\ radians$

The wheel rotates through a 263.12 radians angle.

8 0

2 years ago

HELPPPPPPPPPPPPPPPPPPPPPP

slamgirl [31]

D
because the median of A is 20, the median of B is 30

3 0

3 years ago

Which value of x from the set {4, 5, 6, 7}, makes this equation true?

Phoenix [80]

4(8 - x) = 8

32 - 4x = 8

- 32

-4x = -24

x = 6

4 (8 - 6) = 8

8 - 6 = 2

4 * 2 = 8

8 = 8

5 0

2 years ago

Read 2 more answers