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son4ous [18]
2 years ago
8

A grocery store can purchase Sugar Specks cereal for $2.00 per box. If the store marks the cereal up by 5%, what will it sell ea

ch box of Sugar specks for?
Mathematics
2 answers:
Margarita [4]2 years ago
8 0

Answer:

$2.1

Step-by-step explanation:

2 x 0.05 = 0.1

5+0.1 = $2.1

777dan777 [17]2 years ago
6 0

Answer:

$2.10

Step-by-step explanation:

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7 girls audition for 12 roles in a school play. What is the probability that at least 2 of the girls audition for the same part?
Sophie [7]

Answer:

Step-by-step explanation:

This is one minus the probability that all the girls audition for different roles. The total number of ways of assigning roles to the girls is 12^7, because to each of the 7 girls, you have a choice of 12 roles.

Then if each girl is to receive a different role, then there are 12!/5! possibilities for that. If you start assigning roles to the girls, then for the first girl, there are 12 choices, but for the next you have to choose one of the 11 different ones, so 11 for the next, and then one of the 10 remaining for the next etc. etc., and this is 12*11*10*...*6 = 12!/(12-7)! =12!/5!

The probability that a random assignment of one of the 12^7 roles would happen to be one of the 12!/5! roles where each girl has a different role, is

(12!/5!)/12^7 = 12!/(12^7 5!)

Then the probability that two or more girls addition for the same part is the probability that not all the girls are assigned different roles, this is thus:

1 - 12!/(12^7 5!)

6 0
3 years ago
How many ounces of 20% hydrochloric acid and 70% hydrochloric acid must be mixed to obtain 20 ounces of 50% hydrochloric acid so
Sliva [168]
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5 0
2 years ago
9 divided by 234 <br> Breakdown
Hunter-Best [27]

Answer:

0.0384615385

Step-by-step explanation:

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7 0
3 years ago
When an airplane leaves the runway, its angle of climb is 18 degrees and its speed is 275 feet per second. Find the plane's alti
Elodia [21]
Distance after 1 minute = speed * time = 275 * 60 = 16,500 feet
Let the altitude of the plane be y, then
sin 18 = y/16500
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8 0
3 years ago
Nathan just bought a car. He models the value, V, in dollars, of the car after t years as V(t)=21,000(0.861)^t. Based on this mo
Snezhnost [94]

Answer:

Value of the car is decreasing by 13.9% each year.

Step-by-step explanation:

This equation tells us V(t) is the value of the car after a certain time in years, $21,000 is the initial value of the car.  What we need to focus on is on the 0.861 part of this equation.  This means that the price of the car is worth 0.861 or 86.1% of what it was worth the year prior, this means that the price of the car is decreasing over time.  By how much is it decreasing? Well if we consider 1 to mean 100% (since 100 / 100 =1) then we have 100%-86.1%=13.9%.  This means that the value of the car is decreasing 13.9% each year.

6 0
2 years ago
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