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3 years ago

Use the number line to find 3/4 × 2/5. Label all the parts above and below.

Mathematics

2 answers:

zhuklara [117]3 years ago

8 0

Answer:

3/4 × 2/5 = 3/10

Step-by-step explanation:

3/4 × 2/5 is equivalent to 3/4 of 2/5

First, you have to divide the number line in 5 parts, and locate 2/5 (see figure attached)

Next, you have to divide in 4 parts the segment that represents 2/5, and locate 3/4 of 2/5

If you continue dividing the whole line with the previous segment length, you will divide the whole line into 10 parts.

Then, 3/4 of 2/5 is 3/10.

jeyben [28]3 years ago

3 0

5/9 is the answer because you add 3/4+2/5

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Out of students appeared in an examination 75% passed in English, 55%. passed in Mathematics, 5% failed in both subjects and 21

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Based on the percentage that passed English and those who passed Mathematics and those who failed and passed both, the total number of students who appeared in the examination are 60 students.

The number of students who passed only in Math are 12 students.

<h3>What number of students sat in the exam?</h3>

This can be found as:

= Total who passed English only + Total who passed Math only + Total who failed both + Total who passed both

Assuming the total is n, the equation becomes:

n = 0.75n - 21 + 0.55n - 21 + 21 + 0.05n

n = 1.35n - 21

21 = 0.35n

n = 21 / 0.35

= 60 students

The number who passed mathematics only is:

= (60 x 55%) - students who passed both

= 33 - 21

= 12 students

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