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2 years ago

How many factors are in a B + CD + EF + GH

Mathematics

1 answer:

Len [333]2 years ago

5 0

The given expression is

=ab+cd+ef+gh

The meaning of expression is equal to terms which contains variables and constants and operation between them is Addition, Subtraction, Multiplication and Division.

→The expression consists of four terms which are, ab, cd, ef, and gh.

→Each term contains

Two factors.

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Answer:

it is D

Step-by-step explanation:

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2 years ago

A bag contains 12 red marbles. The ratio of red marbles to blue marbles is 4 : 3. Find the number of blue marbles in the bag.

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Answer:

Step-by-step explanation:

4/3 8/6 12/9

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2 years ago

A teacher orders pizza for her classes. Each pizza costs 16.72. The delivery charge for the entire order is 9.00. The total cost

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1 year ago

At Jefferson Elementary School, the number of teachers and students (kindergarten through sixth grade) totals 510. The ratio of

Natalka [10]

Answer:

Option C.

Step-by-step explanation:

The number of teachers and students (kindergarten through sixth grade) totals is 510.

The ratio of students to teachers is 16:1.

16+1=17

Total number of students = $510\times \frac{16}{17}=480$

Kindergarten students make up 1/5 of the student population and fifth and sixth graders account for 1/3 of the remainder.

Kindergarten students = $480\times \frac{1}{5}=96$

5th-6th grade students = $(480-96)\times \frac{1}{3}=384\times \frac{1}{3}=128$

Students in first and second grades account for 1/4 of all the students.

1st-2nd grade students = $480\times \frac{1}{4}=120$

An equal number of students in the third and fourth grades.

Let x be the number of students in class third.

3rd-4th grade students = $x+x=2x$

Total students = Kindergarten + (1st-2nd) + (3rd-4th) + (5th-6th)

$480=96+120+2x+128$

$480=344+2x$

$480-344=2x$

$136=2x$

Divide both sides by 2.

$68=x$

It means number of students in grade 3 is 68.

$68-96=-28$

It means in third grade 28 fewer students than the number of students in kindergarten.

Therefore, the correct option is C.

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2 years ago