Bobby spent 122 minutes on school work the first week, but only spent 109 minutes on school work the second week.

Mathematics

2 answers:

KengaRu [80]2 years ago

8 0

There is no question to answer here.

but, there is a 13 minute difference in each week

slamgirl [31]2 years ago

4 0

Answer:

what am I suppose to solve the difference of minutes is 13

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Pls help me on these 2 questions !!

motikmotik

Answer:

1. 23

2. 8

Step-by-step explanation:

☆Cross multiply.

$\frac{2}{10} = \frac{4}{a - 3} \\ \\ 40 = 2(a - 3) \\ 40 = 2a - 6 \\ \frac{ + 6 = \: \: \: \: \: \: \: \: + 6}{ \frac{46}{2} = \frac{2a}{2} } \\ \\ 23 = a$

--------

$\frac{k}{6} = \frac{4}{3} \\ \\ \frac{24}{ 3} = \frac{3k}{3} \\ \\ 8 = k$

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joja [24]

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