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PtichkaEL [24]
3 years ago
8

Combine like terms. 9y2 + 9(7y2-5) = I need this for now please

Mathematics
1 answer:
nataly862011 [7]3 years ago
7 0

Answer:

72y2-45

Step-by-step explanation:

9y2 + 9(7y2 - 5)

you multiply the 9 by the stuff in the parentheses

9y2 + 63y2 - 45

72y2-45

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Deanna is a dog groomer. On Monday, she groomed 12 dogs in 8 hours. On Tuesday, she groomed 9 dogs in 6 hours. On Wednesday, she
svetoff [14.1K]

Answer:

Step-by-step explanation:

Monday:  12 dogs / 8 hours = 1.5 dogs/hour

Tuesday:  9 dogs/ 6 hours = 1.5 dogs/hour

Wednesday:   6 dogs/ 6 hours = 1 dog/hour

The Wednesday ratio was equal to the Monday ratio.  FALSE

The Monday ratio was equal to the Tuesday ratio.  TRUE

The Tuesday ratio was greater than the Wednesday ratio.  TRUE

The Wednesday ratio was less than the Monday ratio.  TRUE

The Monday ratio was twice the Wednesday ratio.  FALSE

5 0
3 years ago
Read 2 more answers
Helpppp
Sonja [21]
The answer is 10.5

Formula for rectangular prism:
L x W x H

L = 3
W = 7/4, which equals 1.75
H = 2
7 0
3 years ago
Find an equation for the line below.
Y_Kistochka [10]

Answer:

(-4,-5) (6,-3)

Step-by-step explanation:

right..?

7 0
3 years ago
Mr Nersin likes to ride his bike. He rode for 1/2 hour. After a short rest, he rode 1/10 hour more. He traveled 4 miles in all.
vodomira [7]
The distance traveled by Mr.Nersin = 4 miles
The time for which Mr.Nersin rode first = 1/2 hour
The time for which Mr.Nersin rode after a short rest = 1/10 hour
Then
The total time for which Mr.Nersin rode = (1/2) + (1/10) hour
                                                                = (5 + 1)/10 hour
                                                                = 6/10 hour
                                                                = 3/5 hour
So
Average speed of Mr. Nersin = Distance traveled / Time taken
                                                = 4/(3/5) miles/hour
                                                = (4 * 5)/3 miles/hour
                                               = 20/3 miles/hour
                                                = 6 2/3 miles/hour
                                                = 6.67 miles per hour
So the average speed at which Mr.Nersin traveled is 6 2/3 or 6.67 miles per hour.
6 0
3 years ago
Read 2 more answers
60.2 rounded to the nearest hundredth
Anna11 [10]
It’s gunna be 60.2 I believe
6 0
3 years ago
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