Roberto estimated that the capacity of an elevator was 10 people. The actual capacity of the elevator is 14 people.Which expression can be used to calculate the percent error in Roberto’s estimate?

Answers

Answer 1

Answer: .56 because 4 x 14 = 56 then 56 / 100 = .56

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Today each cookie cost $0.75 less than the normal price. Right now if you buy 7 of them it will cost you $2.80. Write an equation to determine the normal price of each cookie.

Answers

x-0.75=0.40 will determine the normal price of each cookie.

Step-by-step explanation:

Cost of 7 cookies = $2.80

Cost of one cookie = $(2.80)/(7)\n$

Cost of one cookie = $0.40

Let,

x be the normal price of cookie

As the price today is $0.75 less than normal price, therefore,

$x-0.75=0.40$

x-0.75=0.40 will determine the normal price of each cookie.

Keywords: linear equation, subtraction

Learn more about subtraction at:

#LearnwithBrainly

A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the height of the trapezoid?4 meters
144 meters
2 meters
1 meter

Answers

Write it as an algebraic expression

24m^2 = (5m + 7m)/2 x h
24m^2 = 12m/2 x h
24m^2 = 6m x h

Divide both sides of the equation by 6m

24m^2 / 6m = 6m/6m x h
4m = h

The height is 4m

What two numbers added equal 40 but when subtracted equal 10? PLZ!!!!!!!!!!!!!!!!!!!! HELPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

25 and 15

You can easily make a system of equations:

x + y = 40

x - y = 10

Solving for x on equation 2 gets x = 10 + y.

Plugging in this into the first equation, you get 10 + y + y = 40

Thus, 10 + 2y = 40

y = 15.

Plugging this back into either equation gets x = 25.

Multiply. 560.9 • 2.8
A.15705.2
B.1570.52
C.157.052
D.15.7052

Answers

560.9
* 2.8
ignore the decimals and multiply, as whole numbers.
5609 * 28 = 157052
now since there were two spots behind the decimal, squeeze the decimal in the number.
1,570.52 is the answer. which is B

560.9 x 2.8 = 1570.52

Find the Difference 9,052-7,391

Answers

Here is the work below. Step 1. subtract the 2 and the 1. Step 2. since 5 is not enough to subtract by 9, we look at the next number next to the 5. We cannot borrow a zero, so we look to the left.We take one away from 9, make five into 15 and zero into 9. Step 3. subtract the rest.

1661 hope this helps hope i am brainliest i need it and btw you subtract with lining it up

Rhee and Pamela are two of the 5 members of a band. Every week, the band picks two members at random to play on their own for five minutes. What is the probability that Rhee and Pamela are chosen this week?

Answers

There is a 40% chance that Rhee and Pamela will be chosen. I got my answer by dividing 2 and 5 to get the percent.

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