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3 years ago

15

The student faculty ratio at a middle school is 10:2 The total of students and faculty is 520. How many students are there at th

e middle school

2 answers:

weqwewe [10]3 years ago

6 0

10x and 2x would be the answer, then solve the equation

vlabodo [156]3 years ago

4 0

10x and 2x is the answer to your question then do the equation

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Simplify the expression √6 (√33=7)

marin [14]

14.07 is the answer to the question above

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3 years ago

if a race is 10 kilometers long. marker will be placed at tje beginning and the end of the race-course and at each 500meter mark

777dan777 [17]

20 markers are needed to cover the 10 kilometers.

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3 years ago

A refrigerator costs $580 a year to run. A family purchases a new one for $1200 that will save them 22% annually in energy costs

NeTakaya

Answer:

It will take nine years and four months for the refrigerator to pay for itself.

Step-by-step explanation:

The new refrigerator which costs $1200, saves the family 22% annually in energy cost.

Since the old refrigerator costs $580 to run, we want to determine how many years it will take for 22% of $580 per year to make $1200.

22% of $580

= 580 × 0.22

= 127.6

That is, it saved then $127.6 per year.

Now,

$1200/127.6

≈ 9.4

Which means, it will take 9 years and 4 months for the refrigerator to pay for itself.

7 0

3 years ago

Given: ABCD is a trapezoid with AB || DC. If m∠A = 125 and m∠B = 99, find m∠C/

Pavlova-9 [17]

Answer:

The measure of angle C is $81\°$

Step-by-step explanation:

we know that

If AB || DC

then

$m$ -----> supplementary angles by consecutive interior angles

and remember that the sum of the interior angles in a trapezoid is equal to 360 degrees

$m$

step 1

Find the measure of angle D

$m$

substitute the measure of angle A

$125\°+m$

$m$

step 2

Find the measure of angle C

$m$

substitute the values

$125\°+99\°+m$

$m$

5 0

3 years ago

A. Angle Q corresponds to angle Y

Aleksandr [31]

Answer:

B: XZ corresponds to QR

Hope this helps

7 0

3 years ago

Read 2 more answers