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Charra [1.4K]
3 years ago
13

A is the point with coordinates (3,8) b is the point with coordinates (x,13) the gradient of an is 2.5 .work out the value of x

Mathematics
1 answer:
Solnce55 [7]3 years ago
7 0

Answer:

x = 5

Step-by-step explanation:

The formula for the gradient is given by:

m = (y2 - y1)/(x2 - x1), where two points (x1, y1) and (x2, y2) are given.

Thus if we have a gradient of 2.5 and two points (3, 8) and (x, 13), we can substitute this into the above formula for the gradient to get:

2.5 = (13 - 8)/(x - 3)

2.5(x - 3) = 5 (Multiply both sides by (x - 3))

x - 3 = 2 (Divide both sides by 2.5)

x = 5 (Add 3 to both sides)

Thus, the value of x is 5.

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20% mark up

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8 0
3 years ago
Solve the system of equations. -5x+2y=9. y=7x
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- 5x + 2y = 9 \\ y = 7x \\  \\  - 5x + 2 \times 7x = 9 \\  - 5x + 14x = 9 \\ 9x = 9 \\ x = 1 \\  \\ y = 7 \times 1 = 7 \\

Answer: (1; 7)

7 0
3 years ago
Solve for a<br><br> 5 + 7a = 19
Bess [88]
A = 2 all you gotta do is 7 x 2 which is 14 and add 5 to it which equals 19
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▹ Answer

\frac{29}{47} * 100

▹ Step-by-Step Explanation

29 + 18 = 47 → 29/47

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29/47 * 100

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8 0
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Product of 6 and 6r and the product of 8s and 4
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Product tells us we’re going to multiply.

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We don’t have a number value to substitute in for r or s, so we just leave those variables as they are.

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4 0
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