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sineoko [7]
2 years ago
5

There were 450 students enrolled in a middle school at the beginning of the school year. The number of students enrolled in the

school at the end of the year was 10 percent less than the number of students enrolled in the school at the beginning of the year.
How many students were enrolled in the school at the end of the year?​
Mathematics
2 answers:
taurus [48]2 years ago
8 0

Answer:

405

Step-by-step explanation:

10% of 450 is 45 and 450-45=405 students

3241004551 [841]2 years ago
6 0

Answer:

405 maybe?

Step-by-step explanation:

10% of 450 is 45 and subtract that from 450?

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I desperately need help !
Lorico [155]

Answer:

t = 9.57

Step-by-step explanation:

We can use trig functions to solve for the t

Recall the 3 main trig ratios

Sin = opposite / hypotenuse

Cos = adjacent / hypotenuse

Tan = opposite / adjacent.

( note hypotenuse = longest side , opposite = side opposite of angle and adjacent = other side )

We are given an angle as well as its opposite side length ( which has a measure of 18 ) and we need to find its adjacent "t"

When dealing with the opposite and adjacent we use trig ratio tan.

Tan = opp / adj

angle measure = 62 , opposite side length = 18 and adjacent = t

Tan(62) = 18/t

we now solve for t

Tan(62) = 18/t

multiply both sides by t

Tan(62)t = 18

divide both sides by tan(62)

t = 18/tan(62)

t = 9.57

And we are done!

3 0
2 years ago
Read 2 more answers
What is 0.69696969 expressed as the quotient of two integers in simplest form?
timofeeve [1]

When written as the quotient of two integers,

           0.69696969  =  <em>69,696,969 / 100,000,000 .</em>

<u>If</u> you had said that the ' 69 ' keeps repeating forever and never ends,
then that decimal would represent the fraction
                                                                       23 / 33 .
                                                    

3 0
3 years ago
Find the angle of XYZ give your answer to 1 decimal place
miskamm [114]

Answer:

66.4°

Step-by-step explanation:

To find the angle XYZ, we are to use sine rule. For this, we have to first find ∠Z.

Given that: ∠X = 90° (right angle), XY = 6 cm, YZ = 15 cm. Hence:

\frac{sin(Z)}{XY}=\frac{sin(X)}{YZ}\\\\Substituting:\\\\\frac{sin(Z)}{6} =\frac{sin(90)}{15}   \\\\sin(Z)=\frac{sin(90)*6}{15}\\\\sin(Z)=0.4\\\\Z=sin^{-1}(0.4)\\\\Z=23.6^o

∠X + ∠Y + ∠Z = 180° (sum of angles in a triangle)

90 + ∠Y + 23.6 = 180

113.6 + ∠Y = 180

∠Y = 180 - 113.6

∠Y = 66.4°

∠Y = ∠XYZ = 66.4°

3 0
2 years ago
How do i get y alone when 3(–1)+5y=17
tekilochka [14]
3(-1) + 5y = 17
add 3 to both sides
5y=20
divide by 5
y=4

7 0
3 years ago
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How many segments have the midpoint (2, -3).Explain your reasoning.
Amanda [17]
Need a little bit more information to be able to answer the question
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