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UkoKoshka [18]
3 years ago
5

Find a number that is not a solution to 3x-1>8 or 7-x>3

Mathematics
1 answer:
NikAS [45]3 years ago
8 0

Answer:

All of the numbers are solutions.

Step-by-step explanation:

<u>Step 1:  Solve for x in the first equation </u>

3x - 1 + 1 > 8 + 1

3x / 3 > 9 / 3

x > 3

<u>Step 2:  Solve for x in the second equation </u>

7 - x - 7 > 3 - 7

-x / -1 > -4 / -1

Since you divided by a negative, you must flip the sign.

x < 4

<u>Step 3:  Find the number </u>

x > 3 and x < 4

Answer: All of the numbers are solutions.

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The perimeter of a rectangular park is 500 feet. The length of the park is 100 feet longer than the width. Find the length of th
lord [1]

Answer:

The length of the park is 175 feet

Step-by-step explanation:

Let us solve the question

∵ The perimeter of a rectangular park is 500 feet

∵ The formula of the perimeter of the rectangle is P = 2(L + W)

∵ L is the length and W is the width

→ Equate the rule of the perimeter by 500

∴ 2(L + W) = 500

→ Divide both sides by 2

∴ L + W = 250 ⇒ (1)

∵ The length of the park is 100 feet longer than the width

→ That means L is W plus 100

∴ L = W + 100 ⇒ (2)

→ Substitute L in (1) by (2)

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→ Add the like terms

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