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inna [77]
2 years ago
13

Simplify (4r - s) - (r + 2s) + (3r - s) A.) 6r - 3s B.) 8r C.) 3r - 2s D.) 6r - 4s

Mathematics
1 answer:
docker41 [41]2 years ago
6 0

Answer: D

Step-by-step explanation:

4r-r+3r can be simplified to just 6r

-s-2s-s can be simplified to just -4s

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Over the last three evenings, Rita received a total of 91 phone calls at the call center. The third evening, she received 2 time
tatyana61 [14]

Rita received 24 phone calls on the first evening, and 19 phone calls on the second evening and 48 phone calls on the third evening at the call center.

Step-by-step explanation:

As per given details,

Rita received a total of 91 phone calls at the call center over the last three evenings.

Let us assume the number of phone calls Rita received in the first evening is X.

The second evening Rita received 5 fewer calls than the first evening

=>X-5

The third evening Rita received 2 times as any calls as the first evening

=>2X

Now as given sum of total number of calls received in the three evenings is

X + X-5 + 2X = 91

4X - 5 = 91

4X = 96

X =24.

Therefore total calls received on first evening is X = 24

On the second evening X-5 = 24-5 = 19

On the third evening 2X = 48.

4 0
2 years ago
What are the rules to remember when dividing fractions?
harkovskaia [24]

Answer:

copy the first fraction, turn the division sign to a multiplication sign and flip the second fraction

Step-by-step explanation:

ex: 2/5 divided by 1/4

turn it to- 2/5 x 4/1

5 0
3 years ago
Read 2 more answers
Help I tested solving this problem multiple times and it is incorrect
Veseljchak [2.6K]
Area=rsquared(pi)
24/2=12(12)=144(pi)
Around 452.16
I hope that is correct.
5 0
2 years ago
If y varies directly with x, and y = 18 when x = 4, what is the constant of proportionality?
GREYUIT [131]
Y is directly proportional to x and therefore takes the form y=kx where k is the constant of proportionality.

Dividing both sides by x for the given values, k becomes 18/4 = 4.5
3 0
3 years ago
-3 / 4 + (-2 / 7) - (- 5 ½)
Igoryamba
Answer:
125/28
4.46428571
4 13/28
There all right
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6 0
3 years ago
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