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mrs_skeptik [129]
3 years ago
5

11+ (19+6)=(11+____)+6

Mathematics
1 answer:
meriva3 years ago
6 0
19 - when it is just addition, the order and grouping of the numbers doesn't matter
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Elio makes candles that are 14 cm tall. Each candle burns 8 hours before going out. He is wondering how many hours a 21 cm tall
MAXImum [283]
Elio is right in assuming the relationship between the height and the hours it burns is proportional.

Find the unit rate

14 ÷ 8 = 1.75 cm/h

Divide

21 ÷ 1.75 = 12

You can set this up as an algebraic equation to check the answer.

If the candle is 21 cm tall, it will burn for 12 hours.

Hope this helped you! :)
8 0
3 years ago
What value of g makes the equation true? (x+7)(x-4)=x^2+gx-28
goblinko [34]
G=3 
If you multiply out x+7 and x-4 you get <span>x^2+3x-28
The 3 in the above equation is like the G</span>
4 0
3 years ago
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kicyunya [14]

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8 0
2 years ago
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Find the value of z please help
Elza [17]

z + 93 = 180

z = 87

Answer z = 87

Here are the answer for x and y, in case you need them.

x = 2* 93 - 112

x = 186 - 112

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y = 2 * 80 - x

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6 0
3 years ago
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8 0
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