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Tema [17]
3 years ago
13

she sold 17 times more books then partner. each book $21.....they sold 180 books total.....how many did each sell​

Mathematics
1 answer:
ivolga24 [154]3 years ago
7 0

Answer:

1st = 17A => 17*21 = 357

2nd = A => 1*21 = 21

Step-by-step explanation:

17A + A = 18A

18A = 180

A=10

1st = 17A => 17*21 = 357

2nd = A => 1*21 = 21

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A runner compared how long it took him to run 200 meters to the record time held by a friend. In his first heat, his time was 2.
Rasek [7]

Answer: it took him 0.075 seconds lesser

Step-by-step explanation:

In his first heat, his time was 2.45 seconds greater than his friend's record time. In his second heat, his time was 2 3/8 seconds greater than his friend's record time. Converting 2 3/8 seconds to decimal, it becomes 2.375 seconds

Therefore, he was fastest in the second heat.

The difference between the time he used to run in the second heat than in the first heat is

2.45 - 2.375 = 0.075 seconds

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3 years ago
What is the value of x which proves that the runways are parallel? What is the measure of the larger angle?
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3 years ago
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the local bakery uses 1.75 cups of flour in each batch of cookies. the bakery usee 5.25 cups of flour this morning. How many bat
Travka [436]

Answer:

Using 5.25 cups of flour would make 3 batches of cookies. He made 180 cookies.

Step-by-step explanation:

To see how many batches you make all you do is take the 5.25 and divide it by 1.75 because thats how much it takes to make 1. When you divide it you get 3. If there are 5 dozen in each batch thats 60 cookies because 1 dozen is 12. Then,since he made 3 batches you multiply the 60 by 3 and you get 180.

Hope this helps!

4 0
3 years ago
Ill give Brainliest. please explain your answers. im so confused on these questions :((
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Answer:

I'll answer the first one. Neither vehicles are crossing the speed limit since both are under 40mph.

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8 0
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Answer:

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Step-by-step explanation:

Null hypothesis: ∪ =  No possible child abuse or neglect

Alternative hypothesis: Uₐ = Possible child abuse or neglect

A type I error occurs when you reject the null hypothesis when it is true. In this situation, a type I error occurs when you conclude on possible child neglect or abuse and place the child in protective custody

A type II error occurs when you accept the null hypothesis when it is false. In this instance, a type II error occurs when you conclude on no possible child abuse or neglect when there is and fail to remove the child from the home.

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