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alexandr1967 [171]
3 years ago
11

-2×-7y=30 7×+4y=18 ×= y=​

Mathematics
1 answer:
Sati [7]3 years ago
6 0

Answer:

Answer is -7      Hope this helps :D

Step-by-step explanation:

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Round each number to the nearest thousand.   Which is the best estimate for the sum of 472,378 + 178,261?
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472000 + 178000 = <span>650000
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4 0
4 years ago
The scale on a map is 3 inches : 4 miles. How far apart are two cities that are 9 inches apart on the map?
harkovskaia [24]

Answer:

Distance between two cities that are 9 inches apart on the map is 11.97 miles (12 miles)

Step-by-step explanation:

As it is given in the question scaled distance on a map is 3 inches = 4 miles.

Now we have to calculate how many miles in 1 inches on the map = 4÷3

                                                                                      = 1.33miles

Now we get the value of 1 inches on the map = 1.33 miles

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In elementary school we used to refer to this as a ratio problem; two equal ratios with one containing unknown as :

X/C = A/B

X miles / 9 inches = 4 miles / 3 inches

X = 9 (4÷3)

X = 9×1.33

X = 11.97

=12 miles

8 0
3 years ago
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Answer:

-1/8

Step-by-step explanation:

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Negative:

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Reciprocal:

Flip the numerator and denominator

-8/1--> -1/8

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4 years ago
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