Determine whether each ordered pair is a solution of y=2x+5

(-10, -15)

Answers

Answer 1

Answer: This is a valid solution. You can check by substituting the values into the equation:

2(-10)+5=-15

-20+5=-15

-15=-15

This is obviously true, so (-10, -15) is a solution to the equation.

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Estimate large and small values using powers of ten

Answers

Answer:

100 times

Step-by-step explanation:

125x100=12500

because its an estimate this is the closest value

Answer:

100 times

Step-by-step explanation:

12580/125 is about 100

52 is 30% of what number

Answers

52=100%
x=30%
52/x=100%/30%
which equals to 15.6

Answer 15.6

A playground ball has a diameter of 18 cm. What is the hieght and base of the ball? What is the volume?

Answers

Well it really depends but since I only know the diameter I'm not sure of the answer but the circumference is 56.52 (Vertical Multiplication).

Please help me with #6

Answers

I guess the answer would be either 3d+12d or 3 times d times(d+4)
hope I help.

the answer is d+4...

Tessa bought stock in a restaurant for $233.00. Her stock is now noe worth $323.87. What is the percent increase of the value of Tessa's stock?A. 72%
B. 91%
C. 28%
D. 39%

Answers

B. 91%, because if u subtract $323.87 - $233.00 = 90.87% which u can round up and get 91%.

I hope I helped u :)!!

Darcie wants to crochet a minimum of 3 blankets to donate to a homeless shelter. Darcie crochets at a rate of 1/15 of a blanket per day. She has 60 days until when she wants to donate the blankets, but she also wants to skip crocheting some days so she can volunteer in other ways. Write an inequality to determine the number of days, s, Darcie can skip crocheting and still meet her goal. Graph the solution set to this inequality.

Answers

9514 1404 393

Answer:

(60-s)(1/15) ≥ 3
see below for a graph

Step-by-step explanation:

The number of days Darcie can crochet are 60-s, so the number of blankets she can make is (60-s)(1/15). She wants that number to be no less than 3, so her inequality is ...

(60 -s)/15 ≥ 3

The solution set for this is all numbers less than or equal to 15.

60 -s ≥ 45 . . . . . multiply by 15

60 -45 ≥ s . . . . . add s-45

s ≤ 15 . . . . . . . . . simplify

This solution set is graphed below. Please note that negative values of s will satisfy the inequality, but make no sense in the context of the problem.

1st Question:

Write an inequality to determine the number of days, $s$ , Darcie can skip crocheting and still meet her goal: