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pishuonlain [190]
3 years ago
7

Harold took 5 hours to paint 3 same-sized walls. If he works at the same rate, how long will it take him to paint 18 walls of th

e same size?
Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0

Answer:It will take Harold 30 hours to paint all 18 of the walls

Step-by-step explanation:Your multiplying the amount of walls he is painting by 6 so you do the same to the amount of hours he is painting

Mademuasel [1]3 years ago
4 0

Answer:

30 hours

Step-by-step explanation:

We can use ratios to solve

5 hours        x hours

-------------- = -------------

3 walls          18 walls

Using cross products

5*18 = 3x

Divide each side by 3

5*18/3 = 3x/3

30 =x

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3) Find the value of FD. bited F 12 12 13x - 16 E 4x+11 D​
vlada-n [284]

The Length of FD = 26 cm

According to the given information

FE = FC = 12cm

As FE, FC both are radius of circle

The tangent segments to a circle from a external point are equal

Hence

CD = ED

13x - 16 = 4x + 11

13x - 4x = 11 + 16

9x = 27

x = 27/9

x = 3

CD = 13x - 16

     = 13 × 3 - 16

     = 23 cm

ED = 4x + 11

     = 4 × 3 + 11

     = 23 cm

In Triangle FED

FE is perpendicular to ED

According to Pythagoras Theorem

FD^{2}= FE^{2}+ED^{2}

       = 12^{2}+ 23^{2}

       = 673

FD = 26 cm approx.

The Length of FD = 26 cm

To know more about Pythagoras Theorem

brainly.com/question/343682

#SPJ1

8 0
1 year ago
The equation for the circle below is x^2+y^2=64 what is the length of the circle’s radius
FromTheMoon [43]

Answer:

<h2>r = 8</h2>

Step-by-step explanation:

The standard form of an equation of a circle:

(x-h)^2+(y-k)^2=r^2

(h, k) - center

r - radius

We have the equation:

x^2+y^2=64\\\\(x-0)^2+(y-0)^2=8^2

Therefore the center is (0, 0) and the radius r = 8

3 0
3 years ago
1/8 of a cup of cinnamon was sprinkle evenly over some pieces of toast. if 1/32 of a cup was sprinkled on each piece, how many p
Margaret [11]
C because C is the right answer
4 0
2 years ago
Read 2 more answers
What is the area of a sector with a central angle 210 and a diameter of 4.6
gizmo_the_mogwai [7]
Theta = 210°
r = 4.6/2 = 2.3
Area of circle = pi * r * r
= 3.14 * 2.3 * 2.3 = 16.61
Area of sector =
(theta / 360) * area of circle
= (210/360) * 16.61
= 9.69
5 0
3 years ago
Read 2 more answers
Please someone help me on how to do grids?
mafiozo [28]
Answer:

25

Step-by-step explanation:

Question: The distance between P and T on the coordinate grid is __ units. (Input whole numbers only.)

Answer + Step-by-step explanation:

Step 1. Find where point P is located at

Answer: (-10, 15)

Step 2. Find where point T is located at

Answer: (15, 15)

Step 3. Find the distance between point P and T.

Answer: (25) Steps in image

4 0
3 years ago
Read 2 more answers
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