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Blizzard [7]
3 years ago
13

David charges $15 plus $5.50 per hour to mow lawns. Ari charges $12 plus $6.25 per hour to mow lawns. In what situations is aris

charge greater than it equal to David’s charge
Mathematics
1 answer:
KengaRu [80]3 years ago
7 0
Ari's charge is less than David's charge bc David is charging 20. 50 and aris is charging 18. 25
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A wheel with radius 1 foot makes 1 revolution in 4 seconds. What is the linear velocity, in feet per second, of a point on the e
Alona [7]

In one revolution of the wheel, a point on the edge travels a distance equal to the circumference of the wheel.

The wheel has radius 1 ft, so its circumference is 2π (1 ft) = 2π ft.

Then the point has a linear speed of

(1/4 rev/s) * (2π ft/rev) = 2π/4 ft/s = π/2 ft/s

5 0
3 years ago
Select the correct name for the following line.
Pani-rosa [81]
The correct name for the line shown is the answer choice C.

It can be A because the picture is a line not a ray and it cant be B because the picture shown is not a segment

Hope this helps :)
4 0
3 years ago
Read 2 more answers
The surface area of the prism is ______ square units. All measurements in the image below are in units. (Input the whole number
Alex787 [66]
The surface area of the triangle is 1/2 * 6*8 so it is 24 sq units
The whole thing is 24* 7.5 so it is 180 sq units
7 0
3 years ago
Assinale todas as assertivas corretas com relação aos princípios de ensino na Matemática.
Neko [114]
Do u speak English...............
6 0
3 years ago
Luke invited 20 more boys than girls to his birthday party. However, only ¾ of the boys and ⅔ of the girls came. Exactly 19 of L
sveta [45]

Answer:

68

Step-by-step explanation:

Let:

Number of girls invited = x

Number of boys = x +20

3/4 of boy showed up

2/3 of girls showed up

Exactly 19 did not show up

Therefore, we could say:

Fraction of boys that didn't show up = 1 - 3/4 = 1/4

Fraction of girls that didn't show up = 1 - 2/3 = 1/3

That is,

[1/4 *(x + 20)] + [1/3*x] = 19

[(x + 20) / 4] + x /3 = 19

(3(x + 20) + 4x) / 12 = 19

3x + 60 + 4x = 228

7x = 228 - 60

7x = 168

x = 168 / 7

x = 24

Number of girls, x = 24

Number of boys, x + 20 = 24 + 20 = 44

Total friends invited = (24 + 44) = 68

8 0
3 years ago
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