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Alina [70]
3 years ago
6

Mrs. Link's homeroom class wants to win their school's canned food drive competition. There are 24 students in their class. At t

his time, they have collected a total of 40 cans. They feel that 250 cans will win the competition. How many cans should each student bring to school in order to win the competition? *
Mathematics
1 answer:
vlada-n [284]3 years ago
5 0

Answer:

9

Step-by-step explanation:

the 24 students need to collect 210

210/24 = 9 (to the nearest whole number)

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David cast a shadow 42" long at the same place and time in Emma cast a shadow 28" long. David is 66" tall. What is Emma's height
Nikolay [14]

ANSWER

Emma is 44" tall

EXPLANATION

We have that David cast a shadow 42 inches long and he is 66 inches tall.

At that same place and time, Emma cast a shadow of 28 inches.

Since they are at the same spot and time, we can conclude that the ratio of their height to shadow must be the same.

Let Emma's height be x.

The ratio of David's shadow to height is:

42 : 66 or 42 / 66

For Emma, it is:

28 : x or 28 / x

That means that:

\begin{gathered} \frac{42}{66}\text{ = }\frac{28}{x} \\ \text{Solve for x by cross-multiplying:} \\ 42\cdot\text{ x = 66 }\cdot\text{ 28} \\ x\text{ = }\frac{66\cdot\text{ 28}}{42} \\ x\text{ = 44 inches} \end{gathered}

So, Emma is 44" tall.

3 0
1 year ago
What relation is a function? - plz help -
Eduardwww [97]

Answer:

Step-by-step explanation:

A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. ... This is a function since each element from X is related to only one element in Y.

7 0
3 years ago
You can buy 5 cans for green beans at the village market for 3.70. You can buy 10 of the same cans of beans at sams club for 4.1
il63 [147K]

the rate for 5 cans for $3.70 is 0.74

the rate for 10 cans for $4.10 is 0.41

so the better buy is 10 cans for $4.10 at sams

4 0
3 years ago
Gib Answer:
Marina86 [1]

Answer:

the probability is 1/4

4 0
2 years ago
Meldrick had $28 in his savings account. On Monday, he deposited his earnings from mowing lawns on the weekend. He earned the sa
IceJOKER [234]

Answer:

70 - 28 = 42

42/100 X 40 = 16.8

42 - 16.8 = 25.20

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3 years ago
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