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Hunter-Best [27]

4 years ago

8

In one week, 103 students were absent,17 fewer students were absent than the week before. howe many students were absent in thos

e two weeks?

1 answer:

Nitella [24]4 years ago

7 0

A 103 minus 17 is 86 so 117 plus 86 is 203 so a total of 203 were absent in two weeks

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If a new college graduate wants a car costing $21,000, how much must be saved annually over the next four years if the funds ear

fgiga [73]

I'm assuming the funds earn 5% yearly?

Call x the amount he saves every year. The first year's deposit will be multiplied by 1.05 three times, the next will be multiplied by 1.05 twice, the third will be multiplied by 1.05 once, and the fourth will not generate interest (as it will immediately be used to buy the car).

Therefore, x(1.05^3+1.05^2+1.05+1)=21000, so 4.31x=21000. Dividing by 4.31, we see that x is approximately equal to 4872.

8 0

3 years ago

Find the distance between the points (7,-5) and (2, -5).

vazorg [7]

Answer:

15.62 units.

Step-by-step explanation:

To commence with, find for the vector.

Points = (7,-5) and (2,-5)

7 + 2

-5 + -5

12

-10

Vector = 12

-10

Magnitude = y² + x²

Points = (12,-10)

-10² + 12²

100 + 144

244

Square root of 244 is 15.62

Therefore, the distance between the points is 15.62 units.

Hope it helps.

3 0

3 years ago

Read 2 more answers

A manufacturing company produces parts that are good (90%), partially defective (2%), or completely defective (8%). These parts

Schach [20]

Answer:

The probability that a part is good given that it passed the inspection machine is P=0.978.

Step-by-step explanation:

As the inspection machine detect and discard any part that is completely defective, only the good and partially defective parts passed this inspection.

Then, if we have:

Probability of being a good part P(G)=0.90

Probability of being a patially defective part P(P)=0.02

Probability of being a completely defective part P(D)=0.08.

Probability of passing the inspection machine = 1-P(D)=1-0.08=0.92

Then, the probability of having a good part, given that it passed the inspection machine is:

$P(G|Pass)=P(G)/P(Pass)=0.90/0.92=0.978$

4 0

3 years ago

Can some help me with this

Oksana_A [137]

8^3+ 5^5 = 537
3^3 * 9^2 = 2,187
7^2 + 8^3 - 4^2 = 545
8^3 * 5^3 / 5^2 = 2,560

5 0

3 years ago

An entrepreneur sold a damaged bedspread for $130.50, thereby making a loss of 13% on the cost price. Determine the cost price o

Anit [1.1K]

Answer:

$1003.84615

Step-by-step explanation:

130.5 = x * 0.13

130.5/0.13 = x

x = 1003.84615

4 0

3 years ago