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Volgvan
3 years ago
14

liam practiced piano 24 times in 4 weeks. his brother practiced piano 12 times in 14 days. are the rates equivalent?

Mathematics
2 answers:
kolezko [41]3 years ago
7 0
Yes because 24:4 is equal to 12:2
frosja888 [35]3 years ago
5 0

Answer:

No, because 24:4 is not equivalent to 12:14

Step-by-step explanation:

Lily's answer was wrong

The answer is simple because you can not divide 4 by 14 unless you want a decimal ratio.

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Solve the inequality. Graph the solution set, and write it using interval notation. |5x+4|less than or equal to 10
aniked [119]

we have the inequality

\lvert5x+4\rvert\leq10

step 1

Find out the first solution (positive case)

\begin{gathered} +(5x+4)\leq10 \\ 5x\leq10-4 \\ 5x\leq6 \\ x\leq\frac{6}{5} \\ x\leq1.20 \end{gathered}

The first solution is all real numbers less than or equal to 1.20

Interval (-infinite,1.20]

step 2

Find out the second solution (negative case)

-(5x+4)\leq10

Multiply by -1 both sides

\begin{gathered} (5x+4)\ge-10 \\ 5x\ge-10-4 \\ 5x\ge-14 \\ x\ge-\frac{14}{5} \\ x\ge-2.8 \end{gathered}

The second solution is all real numbers greater than or equal to -2.8

the interval [-2.8, infinite)

step 3

Find out the solution to the given inequality

The solution is

[-2.8, infinite) ∩ (-infinite,1.20]=[-2.8,1.20]

the solution is the interval [-2.8,1.20]

see the attached figure to better understand the problem

8 0
1 year ago
Find the point, M, that is two-sevenths of the distance from A(-9, 2) to B(-2, -12).
Softa [21]
(2B +5A)/7 = (2(-2, -12) +5(-9, 2))/7 = (-4-45, -24+10)/7 = (-7, -2)


Selection B is appropriate.
3 0
3 years ago
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pishuonlain [190]

Answer:

1 2/5

Step-by-step explanation:

Step 1:

1.4 = 140/100

Step 2:

140/100 = 70/50

Step 3:

70/50 = 35/25

Step 4:

35/25 = 7/5

Step 5:

7/5 = 1 2/5

Answer:

1 2/5

Hope This Helps :)

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3 years ago
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sdas [7]

Answer:

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Step-by-step explanation:

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3 years ago
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labwork [276]

Answer:

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Step-by-step explanation:

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