Liz polishes rings for a jeweler. She can polish 9 rings per hour. How many rhours will it take her to polish 315 rings?

Answers

Answer 1

Answer: 315 divided by 9 = 35 hours

Answer 2

Answer:

its super duper easy divide ok divide 9 ÷ 315 we give you 35.

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Name the line and plane shown in the diagram.

Answers

the correct answer would be c

the answer is PQ and plane SP

If a 143-mile trip took 5 1/2 gallons of gas, how many miles can be driven with a full tank of 14 gallons?

Answers

Set up the proportion: 143/5.5 = x/14

Cross-multiply the proportion: (143) (14) = 5.5 x

Divide each side by 5.5 : x = (143) (14) / 5.5 = 364 miles

Two planes leave an airport at noon. If the eastbound plane flies at 560 mph and the westbound plane flies at 500 mph, at what time will they be 2,000 miles apart? Round your answer to the nearest minute.

Answers

The two planes are flying in opposite directions.One plane travels at 560miles per hour and the other travels at a speed of 500 miles per hour. As time proceeds, they would travel further from each other and that can be described by the equation that follows:

560(t)+500(t) =2000, since we are given a 2000 distance limit. Then we are to find the time when they are at this distance. Solve for t, which is equal to 0.53 hours or 32 minutes.

Over a two-hour time period, a snail moved 108 inches. How far is this in yards?

Answers

In two-hour time period, a snail moved 3 yards.

Given that, over a two-hour time period, a snail moved 108 inches.

Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured.

We know that, 1 yard = 36 inches

Here, in yards = 108/36

= 3 yards

Therefore, in two-hour time period, a snail moved 3 yards.

To learn more about the metric conversion visit:

brainly.com/question/21244256.

#SPJ6

the snail moved 108 inches
108/36=3 yards
as 1 yard=36 in

Jovante decides to start a business by making buttons and selling them for 25 cents each. The button machine costs $125 and the materials for each button cost 10 cents.

Answers

If he wants to sell buttons, say 40 buttons, he will get a profit of 1000 cents. And one dollar is equal to 100 cents so he only earns 10 dollars. However, the costs for the machine are 125 dollars. Therefore he has a loss of 115 dollars.

The answe on edgenuity2020 is b. I(n) = .25n

At a dental office, the probability a patient needs a cleaning is 0.89. The probability a patientneeds a filling is 0.44. Assuming the events "needs a cleaning" and "needs a filling" are
independent, then what is the probability a patient needs a filling given that he/she needs a cleaning?
A. 0.83
B. Additional information is required to determine the probability.
C.0.39
D. 0.89
E. 0.44

Answers

Answer: 0.44

Reason:

The events "needs a cleaning" and "needs a filling" are independent. Therefore, we can immediately conclude that the prior condition "needs a cleaning" does not affect "needs a filling". That's why we go for the answer of 0.44 which is stated in the instructions.

In terms of symbols:

C = patient needs a cleaning
F = patient needs a filling
P(C) = 0.89 = probability the patient needs a cleaning
P(F) = 0.44
P(F given C) = P(F) .... since F and C are independent
P(F given C) = 0.44

The knowledge about event C happening does not change the value of P(F). Now if events F and C were dependent somehow, then P(F given C) would be different from P(F).

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