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Vesna [10]
3 years ago
7

Independent Practice

Mathematics
1 answer:
kykrilka [37]3 years ago
4 0

Answer:

C.

0.5; 13.5; 1093.5

Step-by-step explanation:

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Person A can paint the neighbor's house 6 times as fast as Person B. The year A and B worked together it
uranmaximum [27]

Person A takes 2.3 days to paint the house working alone

Person B takes 13.8 days to paint the house working alone

<em><u>Solution:</u></em>

Let "x" be the number of days it takes person A  to paint the house

Person A can paint the neighbor's house 6 times as fast as Person B

Therefore.

Number of days it takes person B to paint the house = 6x

Their rates of painting are added to get  the rate working together

\frac{\text{1 house}}{\text{x days}} + \frac{\text{1 house}}{\text{6x days}} = \frac{\text{1 house}}{\text{2 days}}

\frac{1}{x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{1 \times 6}{6x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{7}{6x} = \frac{1}{2}\\\\\ x = \frac{7}{3}= 2.3

Thus person A takes 2.3 days to paint the house working alone

Person B = 2x = 6(2.3) = 13.8

Thus person B takes 13.8 days to paint the house working alone

3 0
2 years ago
F is a trigonometric function of the form f(x) = a sin(bx + c) + d.
Marina CMI [18]

Answer:

3sin(2x+2)-3

Step-by-step explanation:

3sin(2x+2)-3

3 0
2 years ago
Let u=(5 -12) and c=-3 what is cu
Yakvenalex [24]

Answer:21

Step-by-step explanation:

<u>cu   u=-(5-12)=-7   c=-3    -7(-3)=21</u>

3 0
3 years ago
Read 2 more answers
A runner runs at a speed of 8m/s for 2 minutes work out the distance travelled.
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Answer:

960m

Step-by-step explanation:

2 minutes equals to 120 seconds

8*120=960

5 0
3 years ago
Fanny has a string that is 56.789m long . If she cut the string into pieces that are 4.3m long, how many pueces (rounded to the
Usimov [2.4K]
56.789 / 4.3 = 13.206 rounded = 13.2m
4 0
3 years ago
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