2 years ago

Evaluate this expression.

Mathematics

1 answer:

vfiekz [6]2 years ago

8 0

Answer:

6.513

Step-by-step explanation:

1.7 + 0.8 + 4.013 = 6.513 (As there are double minus, so it will become a plus)

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In a class of 30 students, 12 are girls. What percent of the class is girls

dexar [7]

Answer:

40%

Step-by-step explanation:

Total students = 30

No. of girls. = 12

Girls % = ?

Girls % = No. of girls/Total students * 100%

= 0.4 * 100

= 40%

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2 years ago

What is another way to group the factors? (3x2)x5

vitfil [10]

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2 years ago

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Write the number that has 4 thousands,6 humdred thousands,5 ten thousands, 3 tens, and 5 ones

anyanavicka [17]

654,035 654,035 654,035 654,035 654,035 654,035 654,035

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2 years ago

4 × (28 ÷ 7)2 = <br> HURRYYYYY

umka21 [38]

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2 years ago

From a group of 8 volunteers, including Andrew and Karen, 4 people are to be selected at random to organize a charity event. Wha

Helga [31]

Answer:

The correct option is D. 2/7

Step-by-step explanation:

Consider the provided information.

There are 8 volunteers including Andrew and Karen, 4 people are to be selected at random to organize a charity event.

We need to determine the probability Andrew will be among the 4 volunteers selected and Karen will not.

We want to select Andrew and 3 others but not Karen in the group.

Thus, the number of ways to select 3 member out of 8-2=6

(We subtract 2 from 8 because Andrew is already selected and we don't want Karen to be selected, so subtract 2 from 8.)

The required probability is:

$\dfrac{^6C_3}{^8C_4}=\dfrac{\frac{6!}{3!3!}}{\frac{8!}{4!4!}}\\\\\\\dfrac{^6C_3}{^8C_4}=\frac{20}{70}\\\\\\\dfrac{^6C_3}{^8C_4}=\dfrac{2}{7}$

Hence, the correct option is D. 2/7

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3 years ago