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3 years ago

PLEASE HELP ASAP:

Mathematics

2 answers:

dmitriy555 [2]3 years ago

8 0

Answer:

39.34 juniors and 30.1 seniors

Slav-nsk [51]3 years ago

6 0

Answer:

The closest number of juniors and seniors who were inducted is 69.

Step-by-step explanation:

At Lincoln High School, approximately 7% of enrolled juniors and 5% of enrolled seniors were inducted into the National Honor Society last year.

There were 562 juniors and 602 seniors enrolled at Lincoln High School last year.

We will calculate the number of students as:

$0.07(562)+0.05(602)$

= $39.34+30.1$

= 69.44

Therefore, the closest number of juniors and seniors who were inducted is 69.

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Andy has 31 coins made up of quarters and half dollars, and their total value is $11.00. How many quarters does he have?

charle [14.2K]

Answer:

Step-by-step explanation:

This situation has two unknowns - the total number of half dollars and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.

h+q=31 is an equation representing the total number of coins
0.50h+0.25q=11 is an equation representing the total value in money based on the number of coin. 0.50 and 0.25 come from the value of a half dollar and quarter individually.

We write the first equation in terms of q by subtracting it across the equal sign to get h=31-q. We now substitute this for h in the second equation.

0.50(31-q)+0.25q=11

15.5-0.50q+0.25q=11

15.5-0.25q=11

After simplifying, we subtract 15.5 across and divide by the coefficient of q.

-0.25q=-4.5

q=4

We now know of the 31 coins that 4 are quarters.

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4 years ago

A breathalyser test is used by police in an area to determine whether a driver has an excess of alcohol in their blood. The devi

Xelga [282]

Answer: 1)The drivers with low alcohol in take from the breathlyser, being above the limit, A = 5/100;

2)The drivers above the alcohol limit, give reading below that level, B = 15/100;

3) The drivers above the alcohol limit that are arrested at radom by police, C = 12/100

Step-by-step explanation: a) A + B + C = 5/100 + 15/100 + 12/100 = 32/100

b) 1 - ( A + B + C) = 1 - 32/100 = 68/100

c) A = 5/100

d) 1 - 5/100 = 95/100

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3 years ago

Eddie bought some Perfume in Italy, the cost of the perfume was €50 the cost of the same perfume in London was £42. The exchange

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Answer:

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Step-by-step explanation:

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3 years ago

Triangle JKL is transformed to create triangle J'K'L'. The angles in both triangles are shown.

Viefleur [7K]

The correct statement is AngleL = 25° AngleL' = 25°.

We have given that,

Triangle JKL is transformed to create triangle J'K'L'.

We have to choose the correct option.

<h3>What is the information about the transformed triangle?</h3>

The following information should be considered:

In a rigid transformation, the image & pre-image are congruent.

Reflection, translation, and rotation are rigid transformations.

In a non-rigid transformation, the image and pre-image are similar.

Dilation is a non rigid transformation.

In a rigid or nonrigid transformation, the corresponding angles are the same.

If the corresponding sides are the same, then it is a rigid transformation.

If the corresponding sides are proportional, then it is a nonrigid transformation.

It can be a rigid or a nonrigid transformation based on whether the corresponding side lengths have the same measures.

Therefore option 3 is correct.

To learn more transformation of the triangle visit:

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2 years ago

Coordinates point a

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I'm sorry cordinate what

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3 years ago