Solve -9r + 12 = -24

Mathematics

2 answers:

olasank [31]3 years ago

6 0

Answer: r=4

What you do is subtract 12 from itself and from -24 then you have -9r=-36. Then you take -9r and divide it -9 then do the same to -36 and you get 4 :)

cricket20 [7]3 years ago

4 0

-9r+12=-24
-12. -12
__________
-9r=-24-12
-9r=-36
——. ——
-9r -9r

r=-4

You might be interested in

The measure of an angle is 133°. What is the measure of its supplementary angle?

Pachacha [2.7K]

Answer:

Step-by-step explanation:

180 - 133 = 47

7 0

3 years ago

Number 5 has me going crazy, plz help

Ber [7]

Well, the amount of degrees is 1,980, so plug that in so that the equation is 1980 = (n-2)180. Then, do order of operations. Divide 1980/180, which is 11. Then, just add 2. So, the polygon has 13 sides.

7 0

3 years ago

A rectangular board is 1300 millimeters long and 800 millimeters wide. What is the area of the board in square meters?

hichkok12 [17]

Multiply 1300 mm by 800 mm to get 1040000 mm. Then convert this to meters. 1 meter=1000 mm. Therefore, 1040000 mm is the same as 1040 meters.

3 0

3 years ago

The number of patients treated at Dr. Artin’s dentist office each day was recorded for nine days. These are the data: 6, 6, 6, 5

klemol [59]

Answer:

D) 5.6, 6, 6, 1

Step-by-step explanation:

Before we start solving this problem, we need to first rearrange the provided data from smallest to greatest, so we get:

5, 5, 5, 5, 6, 6, 6, 6, 6

now we can find the mean. The mean is nothing but the average of the provided values, so we need to add them and then divide them into the total amount of data:

$mean=\frac{5+5+5+5+6+6+6+6+6}{9}=5.6$

next, in an odd number of data, the median is the middle number when written in order. In this case the middle number (the one in the position 5) is 6, so:

median=6

the mode will tell you what is the value that has the greatest number of occurrencies. This is the number that appears the most on our list.

Mode=6

and the range is the difference between the greatest value and the smallest value:

Range=6-5=1

so the answer is D.

6 0

3 years ago

If 25% of a number is 12, what is 75% of that number?

snow_tiger [21]

Answer:

Step-by-step explanation: