MATHEMATICS HIGH SCHOOL

How long would it take me to save up 1000 dollars if I make 20 dollars a week?

Answers

Answer 1
Answer: Simply divide to find the unit rate. 

1000 dollars needed, and 20 per week. 

1000 / 20 = 50 weeks

Answer: 50 weeks 

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A sine function can be used to model light waves. Green light has a wave length, or period of about 510 nm . which equation best models green light? a. y= sin pi/510 theta b. y= sin pi/255 theta c. y= sin 510/pi theta d. sin 255/pi theta
Round 45,122 to the nearest ten thousand
1 2/3 divided by 3/5
A function is _____ a relation. A) always B) sometimes C) never
Compare the numbers √11 and 3.7. Use the symbols <,>,or=.

A six-foot person walks from the base of a broadcasting tower directly toward the tip of the shadow cast by the tower. When the person is 124 feet from the tower and 3 feet from the tip of the shadow, the person's shadow starts to appear beyond the tower's shadow. (a) Draw a right triangle that gives a visual representation of the problem. Label the known quantities of the triangle and use a variable to represent the height of the tower.

Answers

Answer:

ghfvhgfcv

Step-by-step explanation:

Answer:

A six foot person walks from the base of a broadcasting tower directly toward

A six-foot person walks from the base of a broadcasting tower directly toward the tip of the shadow cast by the tower. When the person is 131 feet from the tower and 3 feet from the tip of the shadow, the person's shadow starts to appear beyond the tower's shadow.

Step-by-step explanation:

Write an expression that shows how to use the halving and doubling strategy to find 28 x 50

Answers

doubling strategy( 28 × 50 ) × 2 = 2800
halving strategy 2800/2 = 1400

Which of the following can be represented by the inequality below? 69h + 126 > 540 A. Yvonne is driving more than 540 miles on a trip. She has already driven 126 miles and drives 69 miles each hour. B. Yvonne is driving less than 540 miles on a trip. She has already driven 126 miles and drives 69 miles each hour. C. Yvonne is driving less than 126 miles on a trip. She has already driven 69 miles and drives 540 miles each hour. D. Yvonne is driving more than 540 miles on a trip. She has already driven 69 miles and drives 126 miles each hour.

Answers

Answer:

The answer is A.

Step-by-step explanation:

The inequality states that the amount that Yvonne drives is more than 540 miles.  Since h represents the number of hours, we know that 69 probably means the number of miles Yvonne can drive per hour.  Finally, 126 shows the amount of miles that Yvonne has already driven.

What is the ratio of people who prefer oranges to bananas?

Answers

I saw the pie chart that should have accompanied this word problem.

Favorite fruit:
Grapes = 150
Apple    = 220
Orange = 185
Banana = 235

Choices:
A) 37/47
B) 185/790
C) 790/275
D) 235/185

Oranges = 185 ; Bananas = 235

Ratio of oranges to Bananas = 185/235
Simplify 185/235
185 ÷ 5 = 37
235 ÷ 5 = 47

Ratio of oranges to Bananas = 37/47  Choice A.

A radioactive material has a half life of 10 years. What is the fraction of the initial isotope is left after 60 years

Answers

Answer:

1/64

Step-by-step explanation:

10 = ½

20 = ¼

30 = ⅛

40 = 1/16

50 = 1/32

60 = 1/64

Answer:

0.015625 left.

Step-by-step explanation:

If we start with say 100g of the material, in 10 years there is 100 * 1/2 =

50g left   ( = 0.5 left).

In 20 years there is 100*(1/2)^2 = 25 g  left.

In n*10 years there is  100(1/2)^2 g

So in 60 years there is 100(1/2)^6 = 1.5625 g left

This is 1.5625 %

= 0.015625 of the origin material left.

The perimeter of a square garden is to be at least 22 feet but not more than 36 feet. Find all possible values for the length of its sides.

Answers

5.5
5.75
6
6.25
6.5
6.75
7
7.25
7.50
7.75
8
8.25
8.50
8.75
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