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olya-2409 [2.1K]
3 years ago
12

What is the slope of a line that is perpendicular to the line with equation 12x+3y=9?

Mathematics
1 answer:
defon3 years ago
5 0

Answer:

Step-by-step explanation

4x-3=y

perpendicular means

-1/4x-3=y

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For a field trip, the school bought 47 sandwiches for $4.60 each and 39 bags of chips for $1.25 each. How much did the school sp
NNADVOKAT [17]

Answer:  \$264.95

Step-by-step explanation:

You know that 1 sandwich costs $4.60 and the school bought 47 sandwiches.

Therefore, in order to calculate the total cost of 47 sandwiches, you need  to multiply this number of sandwiches bought by the schoole, by the cost of 1 sandwich. Then:

sandwiches=(47)(\$4.60)\\\\sandwiches=\$216.2

You know that 1 bag of chip costs $1.25 and the school bought  39 bags of chips.

So, in order to calculate the total cost of  39 bags of chips, you must  multiply the total number of them bought by the school, by the cost of 1 bag of chips.

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8 0
3 years ago
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What does 1/9-(-2/5-8/9) equal?
babunello [35]
1/9 - (-2/5 - 8/9) = 1/9 + 2/5 + 8/9 = 1 + 2/5 = 7/5 or 1 2/5
6 0
3 years ago
4x+x+6=11x-6x+6 what is the value for x
sveticcg [70]

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3 years ago
Each pair of figures below is similar. Find the lengths of all unknown sides​
lions [1.4K]

Answer:

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Step-by-step explanation:

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b) Dimensions on the smaller figure are ER/E'R' = 9/15 = 3/5 times those on the larger figure.

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7 0
3 years ago
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Temka [501]
Mallory purchased 8 oranges.

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6 0
3 years ago
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