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Molodets [167]
3 years ago
12

16. If Mark mows lawns at a constant rate of 7 square feet per minute, who mov faster?​

Mathematics
1 answer:
alex41 [277]3 years ago
7 0

Answer:

420 sq.ft. per hour

Step-by-step explanation:

what was the question at the end its unclear what u wanted

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A cone has a base radius of 7 centimeters and a height of 21 centimeters.
Alex777 [14]
D is the answer...........

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3 years ago
I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per squ
Dmitrij [34]

Answer:

V = \frac{450L - 6 L^{3} }{10}

Step-by-step explanation:

The volume of a cuboid can be determined simply by the formula: V= LWH

(where: L is length, H is height and W is width).

In this particular case the base is a square, which means the length and width are equal. Hence we can modify the equation of volume:

V = L^{2} H

Now we need to find the value of H in terms of L. For this we can develop the equation for cost incurred in building the storage shed. We find the area of each side of the cuboid, and then we multiply it by cost per square feet to find the total cost incurred; as shown below:

<u>Area:</u>

Base: L×L = L^{2}

Roof: L×L = L^{2}

Side: 4 H×L = 4HL  (we have considered all four sides)

<u>Cost:</u>

Base: 4L^{2}

Roof: 2L^{2}

Side: 2.50 * 4HL = 10 HL

Total cost:

4L^{2} + 2L^{2} + 10 HL = 450

We simplify this equation further:

6L^2 + 10<em>HL </em>= 450

10HL = 450 - 6L^2

H = \frac{450- 6 L^2}{10L}  

We now have the value of H, which we can substitute in the formula of Volume we deduced earlier:

substituting H = \frac{450-6L}{10L}  in  V = L^{2} H :

V = L^2 × \frac{450 - 6L }{10L}

Simplifying it further:

V = L × \frac{450 - 6L}{10}

V= \frac{450L - 6L^3}{10} is the final answer.

3 0
3 years ago
A car can travel 374 kilometers on 34 liters of gasoline. How far can it travel on 35 liters?
vovangra [49]

Answer:

385 kilometers

Step-by-step explanation:

Divide 374 by 34 to get the unit price

Then multiply the unit price by 35

4 0
3 years ago
Sam bought 4 packs of white T-shirts and 2 packs of blue T-shirts for his basketball team. The white T-shirts come in packs of 6
Dmitriy789 [7]

Answer:

30

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Describe the steps when adding the following number sentence: -45 + 10 + (-20) + 20
Whitepunk [10]

Answer:

Lets break it you add -45 to 10 and get -35 then you add -20 to 20 making 0 so the answer is -35

Step-by-step explanation:

4 0
3 years ago
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