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lana [24]
3 years ago
7

Would Anyone Help Me With These Math Questions Thank You Very Much.

Mathematics
1 answer:
nalin [4]3 years ago
3 0
1) I'm not sure what an open operation is.
2) D
3) No
4) Yes
5) D
6) hmm
7) there doesn't seem to be a 6 or 7
8) C
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Joe ordered 300 notebooks for the school store. He received
balu736 [363]
30 notebooks, 300 notebooks divided by 10 = 30
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3 years ago
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In an orchestra the ratio of trombones to violas is 1 to 3.
ICE Princess25 [194]
The proportion would be 1/3 and x/9. Cross multiplication creates 3x=9. Divide both sided by three, and there are 3 trombones in the orchestra.
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2 years ago
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Any help would be greatly appreciated!
Aleks [24]

Answer:

the answer for that question is sqrt(49)

7 0
2 years ago
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Could someone help please
pogonyaev

Answer:

3.5 m/s

Step-by-step explanation

Remove brackets

d = t^2 + 0.2t + 3.3t + .66              

Combine

d = t^2 + 3.5t + .66

The initial velocity  is 3.5

3 0
2 years ago
-
ollegr [7]

Answer:

x = 2

y = -3

z = 4

( 2 , -3, 4 )

Step-by-step explanation:

x + y + z = 3 ---- i

x – y =5 ---- ii

y - z = -7 ---- iii

ii + iii

x - z = -2 ---- iv

i + ii

2x + z = 8 --- v

iv + v

3x = 6

x = 2

x=2 substitute for v

z = 4

x =2 substitute for ii

y = -3

5 0
3 years ago
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