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Ber [7]
3 years ago
11

Johnny rode his bike 4/7 of a mile from his house to the lake on a straight path. then, he turned around and rode his bike 3/1/8

miles in the opposite direction. about how far is johnny from his house?
Mathematics
2 answers:
iren [92.7K]3 years ago
7 0
I hope this helps you



3 1/8=3.8+1/8=25/8


25/8-4/7


25.7/8.7-4.8/7.8


175-32/56


143/56

2 31/56

Anna35 [415]3 years ago
7 0
The answer is (c) 2 1/2 as 4/7 is rounded to 1/2 and 3 1/8 is around 3. 3-1/2=2 1/2
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If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?
Fittoniya [83]
Step 1: Find the value of one variable in terms of the other.

a+3b=7\\a=7-3b

Step 2: Substitute the value you just found for this variable in the other equation.

3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}

Step 3: Use your new value for the second variable to find the first.

a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}

Now that we know the values for a and b we can find the value of 4a+b.

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Answer:

Step-by-step explanation:

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vekshin1

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Find the measure of the indicated angle.<br><br>Answers:<br>A: 211<br>B: 81<br>C: 119<br>D: 89
Trava [24]

Answer:

89°

Step-by-step explanation:

Ok so the measure of a triangle is 180°.

We have one angle, so we need to find m∠ACB.

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m∠ACB=30°.

m∠BAC=61°.

180-(61+30)=89°

==============================================================

I hope this helps!  

Have a nice day ❤

7 0
2 years ago
Read 2 more answers
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pentagon [3]

Answer:

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Step-by-step explanation:

$8.99x3=$26.97

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3 years ago
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