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Sedbober [7]
3 years ago
10

Mark practices his guitar 3/4 hours each day. How many hours does he practice in seven days?

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0
3/4 *7
or
0.75*7
The answer is 5.25
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I need help with this math​
Anit [1.1K]

Answer:

x=9  y=-4

Step-by-step explanation:

1) to eliminate a variable make sure they are the same so you can cancel them out

lets eliminate x

-3 and -2 share a GCF of 6 so

2(-3x-4y=-11)

-6x-8y=-22

3(-2x-6y=6)

-6x-18y=18

-6x-8y=-22

-

-6x-18y=18

--------------------------

10y=-40

y=-4

2)substitute y as -4 in the second equation

-2x-6(-4)=6

-2x+24=6

-2x=-18

x=9

6 0
3 years ago
Read 2 more answers
What is w+ 1/x + 1/y + 1/z if w=20, x=23, y=19, and z=28
scoundrel [369]
If W=20 put it in for W, Same with all the other letters: so now we have: 20+1/23+1/19+1/28. Now divide: 1/23=.043, 1/19=.053, 1/28=.036... Now add: 20+.043+.053+.036=20.132. The answer is 20.132 :)
3 0
3 years ago
A family has 5 children. Compute the probabilities of the following events:
Arlecino [84]
I think the answer is 10% and 90%
4 0
3 years ago
Read 2 more answers
Draw or add images here
Elodia [21]

Answer:

jonathan

Step-by-step explanation:

if for example jonathan spends 5 hours of homework or reading he'll get 3 hours of gaming. if lucas spends the same amount of time on homework or reading he'll only get 2 and a half hours playing.

8 0
2 years ago
What is the measure of Arc RS?
IRISSAK [1]

Answer:

4.54 inches

Step-by-step explanation:

3 0
3 years ago
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