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AlekseyPX
3 years ago
8

There are 150 students in the fifth grade in Washington Elementary School. 2/5 of the students like soccer best and 3/10 of them

like basketball best. What fractions like soccer or basketball best?
Mathematics
1 answer:
monitta3 years ago
3 0

Answer:

The fraction of students who likes soccer or basketball is 7/10.

Step-by-step explanation:

In this case we have two groups of students, the group a is the one that prefers soccer, while the second group is the one that prefers basketball. We then need to find the fraction that represents the students that are in either group, in these cases we need to take the fractions of each group and sum them. So we have:

soccer OR basketball = soccer + basketball

soccer OR basketball = 2/5 + 3/10

Through LMC we have:

soccer OR basketball = (2*2 + 3)/10 = (4 + 3)/10 = 7/10

The fraction of students who likes soccer or basketball is 7/10.

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5

is the answer dont over think it and try plz bc its very easy

8 0
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Based on the dotplot of the simulation results and the
Sonbull [250]

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The conclusion to be drawn is:

The actual proportion of teenagers who do not smile  is only 8%.  It is clear that exactly 6 out of 10 teenagers will smile  in their driver's license photo.

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4 0
3 years ago
How can I solve ¾ - (-5/12)?
Oksana_A [137]

Answer:

1 \frac{1}{6}

Step-by-step explanation:

\frac{3}{4}+ \frac{5}{12} =?\\

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

(\frac{3}{4} × \frac{3}{3} ) + (\frac{5}{12} ×\frac{1}{1})=?

Complete the multiplication and the equation becomes

\frac{9}{12} + \frac{5}{12}

The two fractions now have like denominators so you can add the numerators.

\frac{9+5}{12} = \frac{14}{12}

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 14 and 12 using

GCF(14,12) = 2

14÷2 / 12÷2 =7/6

The fraction

7/6

is the same as

7÷6

Convert to a mixed number using

long division for 7 ÷ 6 = 1R1, so

7/6= 1 \frac{1}{6}

Therefore:

3/4 − (−5/12) = 1 \frac{1}{6}

Solution by Formulas

Apply the fractions formula for subtraction, to

3/4 − (−5/12)

and solve

(3×12) − (−5×4) 4×12

=3/6− (−20/48)

=56/48

Reduce by dividing both the numerator and denominator by the Greatest Common Factor GCF( 56,48) = 8

56÷8 / 48÷8 =7/6

Convert to a mixed number using

long division for 7 ÷ 6 = 1R1, so

7/6= 1 \frac{1}{6}

Therefore:

3/4 − (-5/12) = 1 \frac{1}{6}

8 0
1 year ago
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