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2 years ago

Which is a correct first step in solving the inequality -4(2x - 1)> 5-3x?

Mathematics

2 answers:

Lunna [17]2 years ago

7 0

Answer:-4(2x - 1) > 5 - 3x

solution:

-4(2x) -4(-1) > 5 - 3x Distribute -4 to get -8x + 4 > 5 - 3x

-8x + 4 > 5 - 3x

+3x + 3x

-5x + 4 > 5

- 4 -4

-5x > 1

÷ -5 ÷ -5

x < - 1/5

sesenic [268]2 years ago

6 0

Answer:

Step-by-step explanation:

-4(2x - 1) > 5 - 3x

The first step would be to expand the brackets.

-4( 2x ) - 4( -1 ) > 5 - 3x

Distribute the -4 to 2x and -1 to get:

-8x + 4 > 5 - 3x

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Tim has an after-school delivery service that he provides for several small retailers in town. He uses his bicycle and charges $

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Answer:

Step-by-step explanation:

Given that

For delivery within $1\frac{1}2$ mi, charges = $1.25

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For delivery within $1\frac{3}4$ mi - 2 mi, charges = $2.15

and

so on.

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For delivery within 2 mi - 2 $\frac{1}4$ mi, charges = $2.60

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For delivery within 2 $\frac{1}2$ mi - 2 $\frac{3}4$ mi, charges = $3.50

For delivery within 2 $\frac{3}4$ mi - 3 mi, charges = $3.95

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So, every 0.25 mi or $\frac{1}4$ mi increase in distance, there is an increase of $0.45 in the charges.

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Semmy [17]

Answer:

y = 0.2x + 250

Step-by-step explanation:

let the sales be x and y be earnings

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the standard line equation is given as:

y = mx + c

here,

m is the slope

c is the constant

also,

m = $\frac{y_2-y_1}{x_2-x_1}$

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hence,

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