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3 years ago

LAST QUESTION, thank you for helping! :)

Mathematics

1 answer:

snow_tiger [21]3 years ago

7 0

They didn't carry the 2 when multiply 4 and 5. The answer would be 241,420

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Zoe earned $28.38 working for 3.3 hours.how much did she earn per hour?

Ad libitum [116K]

28.38 / 3.3 = 8.75

She makes $8.75 per hour

8 0

3 years ago

A rectangle's length is 4 feet more than its width. If the area of the rectangle is 396 square feet, what is its width, in feet?

asambeis [7]

Let the length be l and width be w.
l = w + 4

Area = length x width
396 = (w + 4)w
w² + 4w - 396 = 0
w = 18, w = -22
Negative width not possible so answer discarded.

Width = 18 feet.

4 0

3 years ago

Read 2 more answers

A pneumatic system is producing 75 lb/in2 of gauge pressure. A cylinder is needed to press an adhesive label onto a product. It

kolbaska11 [484]

The area of the cylinder required for a given pressure is directly

proportional to the applied force.

<h3>The correct response;</h3>

The required diameter of the cylinder is approximately <u>0.26 inches</u>

<h3>Method by which the diameter is found:</h3><h3>Given parameters;</h3>

The gauge pressure produced by the pneumatic system, P = 75 lb/in²

The force required to complete the given task, F = 4 lb.

<h3>Required parameter; </h3>

The diameter of the pneumatic cylinder.

<h3>Solution:</h3><h3>Derivation of the formula for area;</h3>

$\displaystyle Pressure, \, P = \mathbf{\frac{Force, \, F}{Area, \, A}}$

Therefore;

$\displaystyle Area, \, A= \mathbf{\frac{Force, \, F}{Pressure, \, P}}$

<h3>Plugging in the given values to determine the area of the cylinder;</h3>

$\displaystyle Area, \, A= \frac{4 \, lb}{75 \, lb/in^2} = \frac{4}{75} \, in.^2$

<h3>Determining the diameter of the cylinder;</h3>

A = π·r²

$\displaystyle r = \sqrt{ \frac{A}{\pi} }$

$\displaystyle r = \sqrt{\frac{4}{75 \cdot \pi} } \approx 0.13$

The required diameter, d = 2 × r

Therefore;

d ≈ 2 × 0.13 = 0.26

The required diameter, d ≈ <u>0.26 inches</u>

Learn more about the formula for pressure here:

brainly.com/question/13373498

8 0

2 years ago

While at the beach in Caracas, Venezuela, I found 5 pearls and 5 diamonds, I was able to sell each pearl for $15 and each diamon

horsena [70]

Answer: 165

Step-by-step explanation:

5 X( 15+18) = 5 X 15 + 5 X 18 = 75 + 90 = 165.

Distributive law = a.(b + c) = a. b + a. c

3 0

3 years ago

Please help I needed it badly

kicyunya [14]

Answer:

The answer is C trust me I did this

3 0

3 years ago