3 years ago

-9 x 1/3 equals ___________________________

Mathematics

1 answer:

Leno4ka [110]3 years ago

8 0

-9 x 1/3
= -9/3
= -3
......................................

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Zigmanuir [339]

Alr bet x + 8 y - 9 :)

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3 years ago

Use the formula you found in the previous question to find the degree of angle B if angle A = 35 and angle C = 90.

jok3333 [9.3K]

Answer: 55

Step-by-step explanation:

90+35=125

180 is the total degrees of an angle so 180-125= 55

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3 years ago

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vova2212 [387]

Answer:

Step-by-step explanation:

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3 years ago

How much water must be evaporated from 130 gallons of a 9% acid solution to make a 12% acid solution?

Bad White [126]

Answer: 33 gallons

Step-by-step explanation:

We initially have 130 gallons of a $9\%$ acid solution and we need to change it to a $12\%$ acid solution, and for that it is necessary to evaporate $n$ gallons of water.

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$(130)(9\%)=(130-n)(12\%)$

Then:

$(130)(\frac{9}{100})=(130-n)(1\frac{12}{100})$

Isolating $n$ :

$11.7=15.6-0.12 n$

$n=32.5 \approx 33$

Hence, we need to evaporate 33 gallons of water.

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3 years ago

How many centimeters are in 8 meters?

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Answer:

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