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3 years ago

Help please idk what to do

Mathematics

1 answer:

stiks02 [169]3 years ago

4 0

Step-by-step explanation:

solve the ineq first then plot on the number line so,

-2(4x + 5) ≤ 30

-8x - 10 ≤ 30

-8x ≤ 40

x ≥ -5

therefore, option A is correct.

Topic: Inequalities

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Hoochie [10]

Answer:

question 1 is 22

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

Sum of 15, - 2 and 7 is

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Answer:

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Step-by-step explanation:

Solution: 15/2 = 7.5

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3 years ago

The band has 30 more members than the school chorale. If each group had 10 more members, the ratio of their membership would be

vladimir1956 [14]

Answer:

80 members

Step-by-step explanation:

Let the band members be= b and the chorale members= c

Then, according to question, b=c+30 and $\frac{b+10}{c+10}=\frac{3}{2}$

⇒ $2(b+10)=3(c+10)$

⇒ $2b+20=3c+30$

⇒ $2b-3c=30-20$

⇒ $2b-3c=10$

Now, substituting the value of b=c+30, we get

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⇒ $c=50$

Therefore, $b=c+30$

$b=50+30=80$

Therefore, there are 80 members in the band.

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3 years ago