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dexar [7]
3 years ago
13

Doug sold 125 sandwiches to raise money for his boy scout troop. 80% of those sandwiches were sold in his neighborhood. How many

sandwiches did Doug sell in his neighborhood?
Mathematics
1 answer:
grigory [225]3 years ago
4 0

Answer:

Doug sold 100 sandwiches in his neighborhood.

Step-by-step explanation:

To solve for percentage you have to first find the percentage's decimal. To find this you have to the move the decimal point up to places. This makes 80 into 0.8. After you do this you will mutiply that but the total amount. So 125 times 0.8. Once you do this you should get 100. This means that Doug sold 100 sandwiches in his neighborhood.

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shutvik [7]

Answer:

Step-by-step explanation:

m<ARL and m<LRB together equal 180 degress.

x=37.4

So 2(37.4)-5 is

m<LRB=69.8

3 0
4 years ago
Randomly choose a tile without replacing the first tile you choose the second tile find the probability of the compound event wr
gayaneshka [121]

Answer:

40

Step-by-step explanation:

you have to do this first:

10x4=40

6 0
2 years ago
The data show the bug chirps per minute at different temperatures. Find the regression​ equation, letting the first variable be
Olin [163]

Answer:

This predicted value is that it is unrealistically high

Step-by-step explanation:

According to the data given in order to calculate the predicted value we would have to make the following calculation of the predicted value and then conclude.

predicted value=26.693 + 0.055*3000

predicted value=191.693

By having the result of the predicted value we can conclude that what is wrong about this predicted value is that it is unrealistically high.

8 0
4 years ago
A piece of hot metal is cooling at a linear rate. Its Temp. After 4 minutes is 310 deg. Its Temp. After 7 minutes is 205 deg. Wh
rodikova [14]

Answer:

It'll take 12 minutes to be at 30 degrees.

Step-by-step explanation:

Since the metal is cooling at a linear rate then the rate of degrees per minute should be the through the cooling process. From 4 minutes to 7 minutes there was a span of 3 minutes and in that time the metal cooled 105 degrees. So the metal is cooling at a rate of

rate = 105/3 degrees/minute = 35 degrees/min

To reach 30 degrees from 205 it should cool down an additional 175 degrees so it'll take:

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7 0
3 years ago
A student is selecting 5 different geography books, 4 different chemistry books, and one of 7 different science books. In how ma
malfutka [58]

There would be 5184 ways in which each subject books can be selected.

<u>Explanation:</u>

Number of geography books = 5

Number of chemistry books = 4

Number of Science books = 7

Different ways of selecting geography books = 5!

                                                                            = 5 X 4 X 3 X 2 X 1

                                                                            = 120

Different ways of selecting chemistry books = 4!

                                                                          = 4 X 3 X 2 X 1

                                                                          = 24

Different ways of selecting Science books = 7!

                                                                       = 7 X 6 X 5 X 4 X 3 X 2 X 1

                                                                       = 5040

Total different possible ways they can select them = 120 + 24 + 5040

                                                                                     = 5184

5 0
3 years ago
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