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4 years ago

Idk how to solve it...

Mathematics

1 answer:

strojnjashka [21]4 years ago

8 0

|-6b| <= 60

b <= 60/6
b<= 10

and

b>= 60/-6
b>= -10

answer:
b>= - 10 and b<= 10
or
-10 <= b <= 10

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You have two pieces for fabric. One piece is 6 feet wide and the other piece is 7.5 feet wide. You want to cut both pieces into

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Answer:

Strips should be 1.5 ft wide.

Step-by-step explanation:

Given:

Width of 1st piece = 6 ft

Width of 2nd piece = 7.5 ft

To find:

To find the maximum width possible to make strips of equal size from both the pieces.

Solution:

This problem can be visualized as if we are given two numbers and we have to find the Highest common factor for both of them i.e. HCF of 6 and 7.5 will be our answer.

Let us try to factorize the given factors:

$7.5 = 3 \times 2.5 = \underline {3 \times 0.5} \times 5$

$6 = 3 \times 2 = \underline {3 \times 0.5 }\times 2$

The common factors are highlighted above as underlined.

Therefore, the answer is 3 $\times$ 0.5 = 1.5 ft

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3 years ago

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Step-by-step explanation:

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4 years ago

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Mrs. Poster's class is divided into three groups of students. Each group has 3 girls and 2 boys, Which expression could she use

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Answer:

3 X (2+3)

Step-by-step explanation:

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3 years ago

A ladder 25 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2

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Answer:

a) The height decreases at a rate of $\frac{7}{12}$ ft/sec.

b) The area increases at a rate of $\frac{527}{24}$ ft^2/sec

c) The angle is increasing at a rate of $\frac{1}{12}$ rad/sec

Step-by-step explanation:

Attached you will find a sketch of the situation. The ladder forms a triangle of base b and height h with the house. The key to any type of problem is to identify the formula we want to differentiate, by having in mind the rules of differentiation.

a) Using pythagorean theorem, we have that $25^2 = h^2+b^2$ . From here, we have that