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tankabanditka [31]
3 years ago
11

Solve the system of equations using substitution. 2r – t=7 r – t=1 what does r and t equal, hurry please

Mathematics
1 answer:
borishaifa [10]3 years ago
7 0

Answer:

(r,t)=(0,-1)

:)

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Amanda spent a total of 70 minutes competing her chores this week. Write and solve an equation to represent the number of minute
gtnhenbr [62]

Answer:

28 minutes spent in washing the dishes.

Step-by-step explanation:

Given the table

Chore             time in minutes

Sweeping           42

Dishes                  ?

Amanda spent a total of 70 minutes competing her chores this week

Total of 70 minutes spent

42 minutes spent in sweeping . to find the number of minutes Amanda spent in washing the dishes , subtract 42 minutes from the total time spent

let x be the number of minutes spent washing the dishes

42+x=70

To solve for x , subtract 42 from both sides

42+x=70\\x= 70-42\\x=28

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3 years ago
13 lb7 oz <br> + 10 lb2 oz
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Answer:

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Step-by-step explanation:

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