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xeze [42]
3 years ago
6

Write the equivalent expression to the sum of the expressions 3a2 + 3a and -3a - 3a2

Mathematics
1 answer:
ASHA 777 [7]3 years ago
7 0

Answer:

3 {a}^{2}  + 3a  + (- 3 {a}^{2}  - 3a) \\  = 3 {a}^{2}  - 3 {a}^{2}  + 3a - 3a \\  = 0 \\ thank \: you

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6 0
2 years ago
2. Find the variation constant and an equation of variation where y varies inversely as x and y=9 when x=2.
Bas_tet [7]

Answer: y=108

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
NEED HELP ASAP WILL MARK BRAINLIEST What is the value of m? 13m+3−56m=−15 m=−36 m=−27 m = 27 m = 36
NNADVOKAT [17]
13m + 3 - 56 = -15m = -36m = -27m = 36
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4 0
3 years ago
Eli takes a typing test and types all 240 words in 1 10 hour. He takes the test a second time and types the words in 1 12 hour.
alexandr1967 [171]

Answer:

"faster"

Step-by-step explanation:

Let's put the rates of Eli in WORDS PER MINUTE (the normal measure for typing).

First, we need to convert 1/10th of an hour to minutes. Since there are 60 minutes in an hour, we need to multiply 1/10 with 60. So we have:

1/10 hour = 1/10 * 60 = 6 minutes

Now, converting 1/12th of an hour to minutes in the similar manner, we have:

1/12 hour = 1/12 * 60 = 5 minutes

Hence, first time his wpm (words per minute) is ----- 240/6 = 40 wpm

Also, second time his wpm (words per minute) is ------ 240/5 = 48 wpm

2nd time he was faster (since 48 wpm is greater than 40 wpm).

He was faster on his second attempt.

6 0
3 years ago
Mrs. Ling baked 5 pies for a bake sale. During the morning, she sold 1 1/2 pies. During the afternoon, she sold 1 3/4
disa [49]
1 3/4 because you need to turn 1 1/2 to 1 2/4 then you add 1 2/4 + 1 3/4 which equals 2 5/4=3 1/4. Then you subtract 5- 3 1/4 = 1 3/4
7 0
3 years ago
Read 2 more answers
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