3 years ago

EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER

Mathematics

2 answers:

tensa zangetsu [6.8K]3 years ago

7 0

Answer:

i think its C

Step-by-step explanation:

its the one that makes sense to me.

goblinko [34]3 years ago

3 0

I think it’s D but I’m not sure

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Step-by-step explanation:

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3 years ago

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Katena32 [7]

Answer:

First mechanic worked 20 hours and second mechanic worked 5 hours

Step-by-step explanation:

Let the number of hours the first mechanic worked = $a$

Let the number of hours the second mechanic worked = $b$

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$a+b=25$

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and substituting into the second equation to find $b$ :

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Now sub $b=5$ into the first equation to find $a$

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Therefore, first mechanic (a) worked 20 hours and second mechanic (b) worked 5 hours

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2 years ago