3 years ago

Stella is doing her math worksheets. It takes her 1 hour 20 minutes to complete one worksheet with 12 questions.

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

7 0

that would be four hours.

12x3=36

1 hour 20 minutes x3= 4 hours

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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zavuch27 [327]

1. 5x + 6 = 2 + 3x
-3x. - 3x
-------------------------
2x + 6 = 2
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-------------------------
2x = -4
---- -----
2. 2

x = -2

2. 2(6 -2y) = -1(4y-9)
12 -4y = -4y + 9
+4y. +4y
----------------------------
.12 /=\ 9
No solution

3. 2z-6 = 2(z+2) + 10
2z -6 = 2z + 4 + 10
2z -6 = 2z +14
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