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Yakvenalex [24]
3 years ago
6

A bakery sold 108 cupcakes in one day. The head baker predicted he would sell 88 cupcakes that day. What was the percent error o

f the baker's prediction?
Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
7 0

88/108 *100 = 81.48

100-81.48 = 18.52

I have heard this question before

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amy purchases 27 teeshirts for a certain amount of money. using m for the total amount of money in dollars that amy spent on tee
Sophie [7]
<span>One T-shirt is m dollars. The number of T-shirts is n. Amy bought 27 T-shirts. 

27n = m, so n = m/27.</span><span>
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4 0
3 years ago
Liam is making barbecue ribs over a fire. The internal temperature of the ribs when he starts cooking is 40°F. During each hour
Soloha48 [4]

Answer: You need to wait at least 6.4 hours to eat the ribs.

t ≥ 6.4 hours.

Step-by-step explanation:

The initial temperature is 40°F, and it increases by 25% each hour.

This means that during hour 0 the temperature is 40° F

after the first hour, at h = 1h we have an increase of 25%, this means that the new temperature is:

T = 40° F + 0.25*40° F = 1.25*40° F

after another hour we have another increase of 25%, the temperature now is:

T = (1.25*40° F) + 0.25*(1.25*40° F) = (40° F)*(1.25)^2

Now, we can model the temperature at the hour h as:

T(h) = (40°f)*1.25^h

now we want to find the number of hours needed to get the temperature equal to 165°F. which is the minimum temperature that the ribs need to reach in order to be safe to eaten.

So we have:

(40°f)*1.25^h = 165° F

1.25^h = 165/40 = 4.125

h = ln(4.125)/ln(1.25)  = 6.4 hours.

then the inequality is:

t ≥ 6.4 hours.

4 0
3 years ago
Find the measures of x and y
Blizzard [7]

Answer:

x = 159; y = 140

Step-by-step explanation:

a = 40

a + y = 180

y = 180 - 40

y = 140

b = 61

b = (180 - x) + a

61 = 180 - x + 40

x = 159

3 0
2 years ago
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A fair coin is tossed and a single number cube is rolled. the probability of rolling a number less than 5 is ________________. t
Alik [6]
You have a 4/ 6 chance 
then you have a 2/6 chance if the number is an odd number then reducing you would get 
1.   2/3 
2.  1/3 
7 0
3 years ago
The table lists the number of male and female students at Lakeside High School. What is the probability of selecting a female st
Ronch [10]

Answer:

50 percent

Step-by-step explanation:

7 0
3 years ago
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