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tatyana61 [14]
4 years ago
8

Hellpp don't understand :(

Mathematics
1 answer:
olya-2409 [2.1K]4 years ago
5 0
First you gave to get the denominators all the same then you can answer the questions
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The water level in a pool is currently at 1/2 of an inch. Every hour, the water level increases 4.75 inches. How many hours will
____ [38]

Answer:

7.1 hours

Step-by-step explanation:

Given data

Let the number of hours taken to fill the pool be x

the current quantity is 1/2 the capacity of the pool

we are given that the rate of flow = 4.75 in per hour

let the total amount of water after x hours be y, the expression for the quantity of water is given as

y= 0.5+4.75x

if y= 33.75 in, let us find x

33.75= 0.5+4.75x\\\\33.75-0.5= 4.75x\\\\33.25= 4.75x\\\\

divide both sides by 4.75

x= 33.75/4.75\\\\x= 7.10

Hence, it will take 7.1 hours

6 0
3 years ago
What is 19.19 rounded to the nearest tenth
Aleks04 [339]
19.2 because the 0.09 changes the 0.1 to a 0.2
8 0
4 years ago
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Help help help help help help help help help help help help help help help help help help help help help help help help help hel
lesya [120]

f(x)= -2x+1 {-2,0,2,4,6}

If x=-2, then -2(-2)+1 = 5

If x=0, then -2(0)+1 = 1

If x=2, then -2(2)+1 = -3

If x=4, then -2(4)+1 = -7

If x=6, then -2(6)+1 = -11

Answer:

B {5,1,-3,-7,-11}

4 0
3 years ago
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Convert 37 percentage into a fraction
Bumek [7]
37/100. Easiest way possible
5 0
3 years ago
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A solid piece of wood shaped as a cylinder with an 8-centimeter diameter is cut as shown. What is the surface area of the figure
aliina [53]
The surface area of the figure is 96 + 64π ⇒ 1st answer
Step-by-step explanation:
* Lats revise how to find the surface area of the cylinder
- The surface area = lateral area + 2 × area of one base
- The lateral area = perimeter of the base × its height
* Lets solve the problem
- The figure is have cylinder
- Its diameter = 8 cm
∴ Its radius = 8 ÷ 2 = 4 cm
- Its height = 12 cm
∵ The perimeter of the semi-circle = πr
∴ The perimeter of the base = 4π cm
∵ The area of semi-circle = 1/2 πr²
∴ The area of the base = 1/2 × π × 4² = 8π cm²
* Now lets find the surface area of the half-cylinder
- SA = lateral area + 2 × area of one base + the rectangular face
∵ LA = perimeter of base × its height
∴ LA = 4π × 12 = 48π cm²
∵ The dimensions of the rectangular face are the diameter and the
height of the cylinder
∴ The area of the rectangular face = 8 × 12 = 96 cm²
∵ The area of the two bases = 2 × 8π = 16π cm²
∴ SA = 48π + 16π + 96 = 64π + 96 cm²
* The surface area of the figure is 96 + 64π
6 0
3 years ago
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