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2 years ago

5

How do you solve 9 - x = 10 using algebraic operations?

1 answer:

vfiekz [6]2 years ago

6 0

$9 - x = 10\\
-x=1\\
x=-1$

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Which is a good comparison of the estimated sum and the actual sum of 7 9/12 + 2 11/12?

natta225 [31]

7 9/12 = 7.75
2 11/12 = 2.917

So we can round both of these up.

7.75 rounds to 8
2.917 rounds to 3

8 + 3 = 11

So the estimated sum is 11.

7 9/12 + 2 11/12 = 10 2/3

So the actual sum is 10 2/3.

The estimated sum is a pretty good estimate to the original number.

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2 years ago

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mac is buying new carpet for two rectangular rooms.The dimensions of the rooms are 14 feet by 18 feet and 10 feet by 12 feet . H

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Answer:

the larger room needs 132 sq. ft more of carpet

Step-by-step explanation:

14*18 = 252 sq. ft

10*12 = 120 sq. ft

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2 years ago

Assume you spend $275 for your course and you spend 10 weeks on your coursework. How much does it cost per hour to the nearest c

3241004551 [841]

<h2>Answer:</h2>

<em>The course costs, approximately, </em><u><em>$0.16 per hour</em></u><em>.</em>

<h2>Step-by-step explanation:</h2>

<h3>1. Convert the 10 weeks to hours.</h3>

10 weeks * 7= 70 days

70 days * 24= 1680 hours

<h3>2. Calculate cost/hour.</h3>

<em>Establish a rule of 3.</em>

<em>1680 hours -----> $275</em>

<em>1 hour -----> x</em>

<em>x= (1 hour * $275) / 1680 hours</em>

<em>x= 0.1636904762 ---> Round to the nearest cent.</em>

<em>x= 0.16 ---> Final result.</em>

<em />

<h3>3. Conclude.</h3>

<em>The course costs, approximately, </em><u><em>$0.16 per hour</em></u><em>.</em>

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1 year ago

Given the midpoint and one endpoint of a line segment, find the other endpoint.

Talja [164]

The other endpoint is (15,-8)

Explanation:

Given that the midpoint is (4,1) and the endpoint is (-7,10)

We need to determine the other endpoint.

<u>Endpoint:</u>

Let (x,y) denote the other endpoint.

We shall determine the other endpoint using the midpoint formula.

Hence, substituting the values in the midpoint formula, we have,

$(4,1)=(\frac{-7+x}{2},\frac{10+y}{2})$

Let us equate the x - coordinates to determine the value of x.

Thus, we have,

$4=\frac{7+x}{2}$

$8=7+x$

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Thus, the value of x is 15.

Similarly, let us equate the y - coordinate to determine the value of y.

Thus, we have,

$1=\frac{10+y}{2}$

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3 years ago

If amount of employee is 11,569,041 and the male percentage is 54.3%. How many male employees are there

gladu [14]

Answer:

The answer would be 6,281,989

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2 years ago