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MrMuchimi
2 years ago
10

rob is saving to buy a new mp3 player. for every $15 he earns babysitting, he saves $8. On Saturday, Rob earned $90 babysitting.

how much money did he save?
Mathematics
1 answer:
Elena-2011 [213]2 years ago
4 0

Answer: 42

Step-by-step explanation: 15 -8=7 90/15=6 6*7=42

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In triangle ABC, line A.B.=CB Angle ABC equals 4X -3, and angle CAB equals X -3, what is angle ACB
Soloha48 [4]

Answer:

∠ACB = 28.5

Step-by-step explanation:

In triangle ABC,

angle CAB = x-3

angle ABC = 4X-3

It is also given that AB=CB

We know that if two sides of any triangle are equal then corresponding sides must also be equal.

Hence

angle ACB = angle CAB

angle ACB = x-3    {Given that angle CAB = x-3 }

We know that sum of all three angles of a triangle is 180 degree so let's add given angles

angle ACB + angle CAB + angle ABC = 180

(x-3) + (x-3) + (4x-3) = 180

x-3 + x-3 + 4x-3 = 180

6x-9 = 180

6x = 180+9

6x = 189

x = 189/9

x= 31.5

Now plug value of x into

angle ACB = x-3 = 31.5-3 = 28.5

Hence final answer is

∠ACB = 28.5


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2 years ago
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icang [17]

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She has to run 22 laps around the track.

Step-by-step explanation:

It is 22 laps because each mile means 4 laps on the track and 5 miles multiplied by 4 laps it 20 laps to do 5 miles, and then 1/2 mile times two is 2/4 which is 2 laps. 2 plus 20 is 22 laps.

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In this case, all of the equations above are eligible to find the value of the variable n since regardless of the variable position, you will yet be able to find its value.

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