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3 years ago

10

The janitor at a school discovered a leak in a pipe. The janitor found that it was leaking at a rate of 21 fl oz per hour. How f

ast was the pipe leaking in gallons per day?

2 answers:

aleksandr82 [10.1K]3 years ago

7 0

Answer:

3.9375 gallons per day or 4 gallons if you want to round up

Alex777 [14]3 years ago

6 0

Answer:

3.9375

Explanation:

21 x 24 = 504

504 fl oz = 3.9375 gallons

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A carpenter wants to build a rectangular box with square sides in which to put round things. the material for the bottom costs $

alexira [117]

Answer: $1.627\times 1.627\times 1.88\ ft^3$

Step-by-step explanation:

Given

Suppose side face have a dimension of l\times l

and width of h

volume $V=l^2\cdot h$

$h=\frac{V}{l^2}$

volume $V=5 ft^3$

Area of side wall is $A_s=l^2$

Area of top Wall $A_t=l\times h$

Area of bottom $A_b=l\times h$

Cost of bottom wall $c_b=20\times l\times h=20lh$

Cost of top wall $c_t=50\times l\times h=50lh$

Cost of side walls $c_s=4\times l^2\times 10=40l^2$

total cost $C=c_s+c_t+c_b=20lh+50lh+40l^2$

$C=70lh+40l^2$

$C=70\times l\times \frac{5}{l^2}+40l^2$

differentiate C w.r.t l to get minima or maxima

$\frac{\mathrm{d} C}{\mathrm{d} l}=0$

$-\frac{350}{l}+80l^2=0$

$l^3=\frac{350}{80}$

$l=1.627 ft$

$h=\frac{5}{2.648}$

$h=1.88 ft$

Dimension of Box is $1.627\times 1.627\times 1.88\ ft^3$

5 0

3 years ago

In Algebra you learned that Difference of Perfect Squares is x^2 - 25 = (x+5)(x-5)

nika2105 [10]

Answer:

(x+5i)(x-5i)

Step-by-step explanation:

We use imaginary numbers to solve that. since i = sqare root of -1 so i * i = -1.

6 0

3 years ago

What’s the missing length?

andrezito [222]

The missing side length? Or the missing angle?

6 0

3 years ago

Five less than 6 times a number is equivalent to 1 less than twice that number?

Bad White [126]

Answer:

No

Step-by-step explanation:

5 × 6 = 30 - 5 = 25

5 × 2 = 10 - 1 = 9

5 0

3 years ago

Read 2 more answers

Use the standard algorithm to find the product of 853 and 59. Record the product of multiplying by the ones digit, the product o

bearhunter [10]

The product of multiplying the ones digit of 59 by 853 is 7677 and the product of multiplying the tens digit of 59 by 853 is 42650 and the final product is 50327

<h3>How to determine the product of the numbers?</h3>

The numbers are given as

853 and 59

By using the standard algorithm i.e. the partial product method, we have the following equation

853 * 59 = 853 * (50 + 9)

Open the bracket

So, we have

853 * 59 = 853 * 50 + 853 * 9

Evaluate the products

So, we have

853 * 59 = 42650 + 7677

The above means that the product of multiplying the ones digit of 59 by 853 is 7677 and the product of multiplying the tens digit of 59 by 853 is 42650

Next, we evaluate the sum

853 * 59 = 50327

This means that the final product is 50327

Read more about products at

brainly.com/question/10873737

#SPJ1

4 0

2 years ago