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Anna71 [15]
4 years ago
10

On school trip ,the students are spilt into equal groups. there are 18 students in 3 groups.

Mathematics
1 answer:
7nadin3 [17]4 years ago
4 0

Answer:

9 groups

Step-by-step explanation:

18 students split to three groups having 6 students each

So 54 students = 6 × 9

So 9 groups

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3 years ago
Due to the economy and not wanting to eliminate any jobs, all state employees were asked to accept a 4.5% reduction in their sal
jeka94

Answer: The secretary's salary prior to the reduction was $42,000.

Step-by-step explanation:

Hi, to answer this question we have to write an equation:

The original secretary's salary (x) multiplied by the percentage reduction in decimal form (4.5/100) must be equal to the amount of the reduction (1890)

Mathematically speaking:

x (4.5/100)= 1890

Solving for x:

x (0.045)= 1890

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The secretary's salary prior to the reduction was $42,000.

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A customer purchased a jacket for $65. This was 80% of the original price.What was the original price?
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4 years ago
Read 2 more answers
Trigonometry<br> Trigonometric Functions <br> Given: Cos θ = (3/5), Find: Csc θ
nasty-shy [4]

The value of \csc \theta is \frac{5}{4}

Explanation:

Given that the function cos \ \theta is cos \ \theta= \frac{3}{5}

We need to determine the value of \csc \theta

<u>The value of Opposite side of the triangle:</u>

The formula for cos \ \theta is given by

cos \ \theta= \frac{adj}{hyp}=\frac{3}{5}

The value of opposite side can be determined using the formula,

opp=\sqrt{hyp^2-adj^2

opp=\sqrt{5^2-3^2}

opp=\sqrt{25-9}

opp=\sqrt{16}=4

Thus, the value of opposite side is 4

<u>The value of </u>\csc \theta<u>:</u>

The formula for \csc \theta is given by

csc \ \theta=\frac{1}{sin \ \theta}

First, we shall determine the value of sin \ \theta

The formula for sin \ \theta is given by

sin \ \theta= \frac{opp}{hyp}

Substituting the values, we have,

sin \ \theta= \frac{4}{5}

Thus, the value of sin \ \theta is \frac{4}{5}

Substituting the values in the formula for \csc \theta , we have,

csc \ \theta=\frac{1}{\frac{4}{5}}

csc\ \theta= \frac{5}{4}

Hence, the value of \csc \theta is \frac{5}{4}

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3 years ago
It costs $12 to place 8 lines of copy in a local advertising circular . What is the unit rate per line
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