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3 years ago

2. A maintenance crew is paving a road in 7-hour shifts. After

Mathematics

1 answer:

harkovskaia [24]3 years ago

7 0

Answer:

The answer is the first one

Step-by-step explanation:

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For this question, insert parentheses and/or addition signs to make equation true.

klasskru [66]

3+ (2) 4+ 1 = 12

Good luck

3 0

4 years ago

The mass of the cylinder is 50000 g find the density of the cylinder to the nearest tenth

vichka [17]

Please consider the diagram of cylinder.

We have been given that the mass of the cylinder is 50000 g. We are asked to find the density of the cylinder.

$\text{Density}=\frac{\text{Mass}}{\text{Volume}}$

Let us find the volume of our given cylinder.

$V=\pi r^2 h$ , where

r = Radius,

h = Height.

We know that radius is half the diameter, so radius of given cylinder would be $\frac{28}{2}=14$ mm.

$V=\pi\cdot(14 \text{ mm})^2\cdot 30\text{ mm}$

$V=\pi\cdot 196\text{ mm}^2\cdot 30\text{ mm}$

$V=\pi\cdot 5880\text{ mm}^3$

$V=18472.5648031\text{ mm}^3$

$\text{Density}=\frac{50000\text{ g}}{18472.5648031\text{ mm}^3}$

$\text{Density}=2.7067167192510906\cdot \frac{\text{g}}{\text{ mm}^3}$

$\text{Density}\approx2.7\frac{\text{g}}{\text{ mm}^3}$

Therefore, the density of the cylinder is approximately 2.7 gram per cubic mm.

6 0

3 years ago

What is the answer 14=31.7-3x

KengaRu [80]

Answer:

x = 5.9

Step-by-step explanation:

Step 1: Write equation

14 = 31.7 - 3x

Step 2: Solve for <em>x</em>

<u>Subtract 31.7 on both sides:</u> -17.7 = -3x

<u>Divide both sides by -3:</u> x = 5.9

Step 3: Check

<em>Plug in x to verify if it's a solution.</em>

14 = 31.7 - 3(5.9)

14 = 31.7 - 17.7

14 = 14

7 0

3 years ago

determine if the ratios are equivalent, if so, determine the multiplier or scale factor. 12/4 and 6/3 answer question

kramer

Answer:

<h3>yhghikkgjjcbchju</h3>

Step-by-step explanation:

gjjhiotuiiyvcbnjfxvvdgjhdgbdvzcghnmmhkvnmm hai

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3 years ago

Problem #15: A box contains 4 black balls, 7 red balls, and 3 green balls. Three balls are

Liula [17]

Answer:i don't know

Step-by-step explanation:

3 0

2 years ago