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makkiz [27]
3 years ago
5

The sum of a number and three more than twice that number is 27 .what is the smaller number ?

Mathematics
1 answer:
satela [25.4K]3 years ago
4 0

number - N

The sum of a number and three more than twice that number is 27.

N + (2N + 3) = 27

what is the smaller number ?

N + 2N + 3 = 27

3N = 27 - 3

3N = 24

N = 8

Check

N + (2N + 3) = 27 = 8 + (2x8 + 3) = 8 + 16 + 3 = 27

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The line slopes upwards from left to right wit a positive gradient and cuts the y-axis at y=2 and the x-axis at x=-3/2

Step-by-step explanation:

We first rearrange the equation to the order y=mx+c where m is the gradient and c the y intercept.

3y=4x+6

y=(4/3)x+2

The gradient is therefore 4/3 and the y intercept is 2.

At the c intercept, y=0

0=(4/3)x +2

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The line slopes upwards from left to right with a positive gradient and cuts the y-axis at y=2 and the x-axis at x=-3/2

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On a map, the scale shown is 1 inch : 3 miles. If an island is 0.5 square inches on the map, what is the actual area of the isla
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Answer:

4.5

Step-by-step explanation:

First we need to turn the ratio of 1 : 3 into a fraction

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Then we turn those numbers into a fraction

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And cross multiply both fraction by each other

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A city park commission received a donation of playground equipment from a parents' organization. The area of the playground need
dalvyx [7]

Answer:

Length = 20.49 yards and Width = 12.49 yards.

Step-by-step explanation:

The area of the rectangular playground is given by 256 yards square. It is also known that one of the sides of the playground is 8 yards longer than the other side. Therefore, let the smaller side by x yards. Then the longer side will be (x+8) yards. The area of the rectangle is given by:

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Since larger side = (x+8) yards, thus larger side = 12.49+8 = 20.49 yards.

Thus, the length and the width to minimize the perimeter of fencing is 20.49 yards and 12.49 yards respectively!!!

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