3 years ago

12 tenths plus 9 tenths =21 tenths = ones _ tenths

Mathematics

1 answer:

MakcuM [25]3 years ago

3 0

2100 ones if I am thinking about this right. hope it helps

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Step-by-step explanation:

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3 years ago

-15 = 5a +12- 2a + 6 -11 -3 10 7

just olya [345]

Answer:

Step-by-step explanation:

So we have the equation:

$-15=5a+12-2a+6$

On the right combine like terms:

$-15=5a-2a+12+6\\-15=3a+18$

Subtract 18 from both sides. The right cancels:

$(-15)-18=(3a+18)-18\\-33=3a$

Divide both sides by 3:

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3 years ago

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3 years ago

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Fiesta28 [93]

Answer:

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Step-by-step explanation:

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3 years ago

12 tenths plus 9 tenths =21 tenths = ____ ones _____ tenths

12 tenths plus 9 tenths =21 tenths = ones _ tenths