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AlekseyPX
3 years ago
12

Can anyone help me with this math problem

Mathematics
1 answer:
Gnoma [55]3 years ago
5 0

Answer:

B.)

Step-by-step explanation:

In step #1 they did the distributive property

2/5 × 15x = 6x

2/5 × -30y = -12y

The new equation would be:

6x - 12y + 10x

<em><u>Further</u></em><em><u> </u></em><em><u>Explanation</u></em>

They then combined 6x + 10x to get 16x

16x - 12y

They then factored it out to 4(4x - 3y)

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A water sprinkler covers a circular area with a diameter of 20 feet. If it is set to cover only an arc measuring 120 degrees, wh
Wewaii [24]

<u>Answer:</u>

The sprinkler will cover 104.66 square feet

<u>Explanation:</u>

A water sprinkler covers a circular area with a diameter D=  20 feet

and radius r = 10 feet

Arc measuring degrees = 120 degree

Area of the Arc = \frac{120}{360} \times \pi \times r^2

                         = \frac{1}{3} \times \pi \times 10^2

                         = \frac{1}{3} \times 3.14 \times 10 \times 10

                         = 104.66

The sprinkler will cover an arc area covering 104.66 square feet

4 0
3 years ago
The ratio of red ribbons to green ribbons is 4 to 6.If these are total of 32 red ribbons, then how many green ribbons are there?
den301095 [7]

Answer:

48 green

Step-by-step explanation:

red : green

4    :   6    

We want 32 red ribbons

Multiply each side by 8

red : green

4*8  :   6*8

32   : 48

4 0
3 years ago
Read 2 more answers
Y’all please give me the answer to this. (7 questions) have to show work.Geometry. Will mark brainliest.
topjm [15]

Answer:

Step-by-step explanation:

Sweet. Get to answer finally. I was the guy commenting on your other post.

1. 72

2. 46

3. 99

4. Same side interior angles are supplementary

5. alternate interior angles are equal to each other so set up the x expressions equal to each other. 5x-7=3x+17. Solve for x

5x-7=3x+17

2x=24

x=12

plug it in for the 5x-7 and get an angle.. 5(12)-7

60-7

53.

The 5x-7 and the 4y+3 is supplementary.

so 53+3+4y=180. combine the 2 and set them equal to 180 to find y

56+4y=180

124=4y

y=31

And now we find the angle of 6. We know that corresponding angles are equal and the y expression and angle 6 are corresponding angles

so plug in your answer for y in the expression..

4(31)+3 = 127.

so angle 6 is 127

6 0
3 years ago
Please help a kid out
Vlad1618 [11]

15/24

4 2/3=(4*3)+2/3=14/3

simply 15/24

15/3/24/3=5/8

refine

5/8*14/3

8 and 14 share a factor of 2

8/2=4

14/2=7

refine

5/4*7/3

5*7/4*3

35/12

convert to mixed number

35/12=2.11

2 11/12

the answer is 2 11/12

7 0
4 years ago
The high school has 26 teachers and 546 students. What is the ratio of teachers to students?
skelet666 [1.2K]

Answer:

1:21

Step-by-step explanation:

Easiest trick way to do this is do 26/546 on your calculator (if you got a scientific one) this would simplify this to its lowest fraction which can be converted into a ratio in this case the ratio of teachers to students is 1:21

8 0
3 years ago
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