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Dmitrij [34]
2 years ago
13

7y + 7(3 − y) > 2y − 9

Mathematics
2 answers:
Zigmanuir [339]2 years ago
5 0

Answer:

y < 15

Step-by-step explanation:

7y + 7(3 − y) > 2y − 9 (Given)

7y + 21 - 7y > 2y - 9 (distributive property of inequality)

21 > 2y - 9 (combine like terms)

-2y > -30 (subtraction property of inequality)

y < 15 (division property of inequality) (sign changes side because it was divided by a negative number).

<u><em>Ace Carlos</em></u>

exis [7]2 years ago
3 0

Answer:

y < 15

Step-by-step explanation:

Simplify both sides of the inequality

Flip the equation

Add 9 to both sides

Divide both sides by 2

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castortr0y [4]
A and D are the solutions that make the inequality true.
6^2= 36
9^2= 81
10^2= 100
-4^2= 16
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3 0
3 years ago
Read 2 more answers
ms. lorenz needs to rent a car for 3 days. she can choose from two plans. plan a costs $60 per day. plan b costs $30 per day plu
maw [93]

Answer:

distance driven < 300 miles.

Step-by-step explanation:

Plan A

She needs the car for 3 days.

1 day costs 60 dollars

3 days cost 60*3 = 180 So this is the maximum amount that she can spend

Plan B

She still needs the car for 3 days

1 day costs 20 dollars of the car does not move

3 days costs 3*20 = 60 dollars.

60 + 0.4m < 180                Subtract 60

0.4m < 180 - 60

0.4m < 120                        Divide by 0.4

m < 120/ 0.4

m < 300  

Answer

so she should drive less than 300 miles.

3 0
3 years ago
How does estimating an addition or subtraction problem help you know if an answer is reasonable?
kiruha [24]

Answer:

It helps you know if the answer is reasonable because when you do the work and get your answer, you can check if it is close to your estimate, and if it is, it is most likely correct. On the other hand if it is not close to the estimate it is most likely wrong, unless you estimated incorrectly.

Step-by-step explanation:

7 0
2 years ago
Write an equation of the line that passes through the given point and is (a) parallel and (b) perpendicular to the given line.
inessss [21]

Answer:

(a). <em>y = 3x - 11 ;</em> (b). <em>y = </em>-\frac{1}{3}<em> x - 1 </em>

Step-by-step explanation:

Parallel lines have the same slopes

Slopes of perpendicular lines are opposite reciprocals.

(3, - 2)

The slope of given line is 3

<em>(a)</em>. Equation of ║ line is

y + 2 = 3(x - 3)

<em>y = 3x - 11</em>

<em>(b).</em> Slope of perpendicular line is -\frac{1}{3}

y + 2 = -\frac{1}{3} (x - 3)

<em>y = </em>-\frac{1}{3}<em> x - 1</em>

5 0
3 years ago
Read 2 more answers
1 point
s2008m [1.1K]

Answer:

i do not know

Step-by-step explanation:

6 0
2 years ago
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