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Svetradugi [14.3K]
3 years ago
7

Ella completed 3/8 of a puzzle during recess on Tuesday. Joy completed two six of the same puzzle during recess on Wednesday. ho

w much of the puzzle did the two girls complete use what you know about fractions to explain how you found your answer use numbers and or words in your explanation
Mathematics
1 answer:
gavmur [86]3 years ago
6 0
Well u have to make the denominator the same so u multiply 3/8 by 3 and get 9/24, then multiple 2/6 by three and get 8/24. Add them, 9/24+8/24 and u get 17/24
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A medical researcher needs 37 people to test the effectiveness of an experimental drug. If 101 people have volunteered for the t
Rashid [163]

Answer:

The number of ways to select 37 people from 101 is, 5,397,234,129,638,871,133,346,507,775.

Step-by-step explanation:

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!\cdot (n-k)!}

Compute the number of ways to select 37 people from 101 as follows:

{101\choose 37}=\frac{101!}{37!\cdot (101-37)!}

        =\frac{101!}{37!\times 64!}\\\\=\frac{101\times 100\times 99\times....64!}{37!\times 64!}\\\\=5397234129638871133346507775

Thus, the number of ways to select 37 people from 101 is, 5,397,234,129,638,871,133,346,507,775.

5 0
2 years ago
A(-1,2) B(3,1) C(1,-4) To the new coordinated A'(-2,4) B'(6,2) C'(2,-8) what was the scale factor?
kicyunya [14]

Answer:

Step-by-step explanation:

A(-1, 2)  ==> A'(-2, 4)

B(3,1) ==> B'(6,2)

C(1,-4) ==> C'(2,-8)

Based on the results of each set, the scale factor is 2

A(-1*2, 2*2)=  A'(-2, 4)

6 0
2 years ago
If h(x) = 2x and g(x) = 3x2 + 1, what is h(g(x))?
Lady_Fox [76]

Answer:

h(g(x))=h(3x^2+1)=2(3x^2+1)=6x^2+2

8 0
2 years ago
An exam is made of two papers that score differently.
Orlov [11]

71 %

Calculate score for each paper, total them and convert to a percentage.

Paper 1 : mark = 0.65 × 120 =78

Paper 2 :mark = 0.8 ×80 = 64

Total mark = (78 + 64)/200 =142/200

Percentage score = 142/200 × 100 % = 71 %


3 0
2 years ago
Read 2 more answers
What is the slope the line that passes through the points:
valina [46]
<h3>Given Points:</h3>

(-6, 14) and (2, -18)

<h3>To Find:</h3>

The slope of the line that passes through the point.

<h3>Slope Formula:</h3>

y2 - y1 / x2 - x1

<h3>Solution:</h3>

-18 - 14 / 2 + 6

= -32 / 8

= -4

<h2>Answer:</h2>

<u>Option D. -4</u>

6 0
3 years ago
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