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Ivahew [28]
3 years ago
15

Which graph represents 4x + 7y < -21

Mathematics
1 answer:
allsm [11]3 years ago
3 0

Answer:

C

Step-by-step explanation:

Since the sign is not \leq, and it is <, then you'd choose the option with the dotted line showing it isn't inclusive.

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I need serious help with this. Someone help me please.
GalinKa [24]

Step-by-step explanation:

the answer is

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NikAS [45]

Answer:

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Step-by-step explanation:

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2 years ago
Rachel's learning to play the violin Monday through Friday she practices 45 minutes on each day on Saturday and Sundays he broug
I am Lyosha [343]

Rachel spends 6 hours 45 minutes a week trying to learn to play the violin.

Step-by-step explanation:

Step 1; Rachel learns for 45 minutes a day from Monday through Friday and in the weekend she learns to play the violin for one and a half hours. So she learns for the following periods of time

Monday - 45 minutes

Tuesday - 45 minutes

Wednesday - 45 minutes

Thursday - 45 minutes

Friday - 45 minutes

Saturday - 90 minutes (60 × 1.5 hours)

Sunday - 90 minutes (60 × 1.5 hours)

Step 2; To determine how much time she practices in a week we just add the individual times she plays on each day.

Total time practices in a week = 45 + 45 + 45 + 45 + 45 + 90 + 90 = 405 minutes = 6 hours 45 minutes.

           

5 0
3 years ago
Please help me with this.
scoundrel [369]

Answer:

12.4

Step-by-step explanation:

do 9x11 (the cross)

then divide that by 8, so 99/8

that equals 12.375 which rounded to the nearest tenth is 12.4

4 0
2 years ago
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