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kirza4 [7]
3 years ago
10

Look at the picture below please

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

Answer:

  1. 1.73205080757
  2. 4.58257569496
  3. 7.87400787401

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Naomi and Claire are painting a mural. Naomi paints 2 square feet per hour and has already painted 16.5 square feet.
mrs_skeptik [129]

Answer:

4.5 hours

Step-by-step explanation:

let t be the time elapsed

Therefore, we can set up a system of equations and solve accordingly

2t + 16.5 = 4t + 7.5

2t = 9

t = 4.5 hours more till they paint the same amount in square feet

3 0
3 years ago
Sumiko and Jandella ran the bleachers together today at Poly High School. Sumiko runs these same bleachers every 6 days and Jand
Fittoniya [83]

Answer:

The soonest they will see each other again is in 48 days

Step-by-step explanation:

Here is the complete question:

Sumiko and Jandella ran the bleachers together today at Poly High School. Sumiko runs these same bleachers every 6 days and Jandella runs them every 16 days. The soonest they will see each other again is in days.

Step-by-step explanation:

From the question, Sumiko and Jandella ran the bleachers together today, that is, they saw each other today.

Sumiko runs the bleachers every 6 days while Jandella runs them every 16 days

To determine how soon they will see each other again, we will list the days they will run the bleachers separately.

For Sumiko, she will run the bleachers on the

6th, 12th, 18th, 24th, 30th, 36th, 42nd, 48th, 54th, 60th, etc days after today.

For Jandella, she will run the bleachers on the

16th, 32nd, 48th, 64th, 80th, etc days after today.

From above, they will both run the bleachers on the 48th day after today.

Hence, the soonest they will see each other again is in 48 days.

6 0
3 years ago
Find the probability of picking 2 blue marbles when 2 marbles are picked (with replacement) from a bag containing three blue and
Katen [24]

Answer: 0.5

Step-by-step explanation:

Given

There are 3 blue and 1 yellow marble

The chance of picking two marble out of 3 is ^3C_2

The total no of ways of picking 2 marbles out of 4 is ^4C_2

Therefore, the probability of picking 2 blue marbles

\Rightarrow P=\dfrac{^3C_2}{^4C_2}\\\\\Rightarrow P=\dfrac{3\times 2}{4\times 3}\\\\\Rightarrow P=\dfrac{1}{2}

3 0
3 years ago
To solve the equation 2−5(3+4x)=2x+7, Miranda's first step was to write 2−15−20x=2x+7. Which property did Miranda use in her fir
Aneli [31]

Answer:

Step-by-step explanation:

distributive

3 0
3 years ago
Oanna earns $10 per hour at her job. Last week, Joanna earned $400.
kotegsom [21]

Answer:

40 hrs

Step-by-step explanation:

She worked 1 hr for 10 and she got 400

4 0
3 years ago
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