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3 years ago

Which of the sums below can be expressed as 7(4 + 9)?

2 answers:

6 0

1st). Distribute 7 & 4
2nd). Distribute 7 & 9
3rd). Your equation should look like this " 28 + 63"
Your answer is the 2nd option. ;)

Vilka [71]3 years ago

6 0

Answer:

28+63 would be your answer

Step-by-step explanation:

Because they have the same value

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If z varies jointly with x and y, x = 2 and y = 2, z = 7. Find z when x = 4 and y = 8.

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Answer:

Step-by-step explanation:

z varies jointly with x and y:

z = kxy

When x = 2 and y = 2, z = 7.

7 = k(2)(2)

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z = 7/4 xy

When x = 4 and y = 8:

z = 7/4 (4)(8)

z = 56

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Find the terms, coefficients, and constants of 4x+x+17

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Answer:

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have a good day :)

Step-by-step explanation:

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Find two consecutive whole numbers such that 4/7 of the larger exceeds 1/2 of the smaller by 5

Darina [25.2K]

Answer:

The consecutive numbers are 62 and 63

Step-by-step explanation:

Let the larger number be represented by x and the smaller number by y,

Provided they are consecutive numbers;

$x = y + 1$ --- Equation 1

From the question; we have that

$\frac{4x}{7} = \frac{y}{2} + 5$ --- Equation 2

Required

Find x and y

Multiply both sides of equation 2 by 14

$14 * \frac{4x}{7} = 14 * \frac{y}{2} + 14 * 5$

$2 * 4x = 7 * y + 70$

$8x = 7y + 70$ ---- Equation 3

Substitute y + 1 for x in equation 2

$8(y + 1) = 7y + 70$

Open bracket

$8y + 8 = 7y + 70$

Collect like terms

$8y - 7y = 70 - 8$

$y = 62$

$x = y + 1$

So,

$x = 62 + 1$

$x = 63$

Hence, the consecutive numbers are 62 and 63

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3 years ago