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creativ13 [48]
3 years ago
11

Choose the inequality that models the situation. The fundraising committee gets $10 per donation d. They need to raise at least

$800 for a new piece of playground equipment.
A) $10d ≤ $800
B) d/$10 ≤ $800
C) d/$10 ≤ $800
D) $10d ≥ $800
Mathematics
1 answer:
bonufazy [111]3 years ago
7 0

$10d ≥ $800   Your answer is D

[they get $10 per donation(d), and they need at least $800 (that is the minimum, so they can raise more than $800).]

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What percent of 98 million is 7740
sattari [20]

Answer:

Step-by-step explanation:

x : 100 = 7740 : 98 000 000

x = (7740 * 100)/98 000 000

x = 0.007898 %

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An animal shelter has 21 puppies. If the puppies are 28% of the total dogs and cat population how many dogs and cats are in the
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Step-by-step explanationyes yes yes



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A scientist cools some water at a constant rate. the graph and table show how the temperature of the water changes with time.
irina1246 [14]

Answer:

C

Step-by-step explanation:

The easiest way to determine this is to realize that time is the independent variable (n) and temperature is the dependent variable (a).

From the table, we can plug in the two points (n) into n of each equation and see if that equals the temperature values (a).

<em>A little thinking would get us to plug the numbers in C first.</em>

<em>a(n)=46-(n-1)*4\\46-(5-1)*4=30</em>

<em>Works!!</em>

<em>Now, second number:</em>

<em>a(n)=46-(n-1)*4\\46-(6-1)*4=26</em>

<em>Works!!</em>

<em />

<em>Hence, C is the correct answer.</em>

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Can anyone help me? SOOOOO hard!!
emmasim [6.3K]

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Step-by-step explanation:

8 0
3 years ago
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Natalia bought 4 boxes of pencils and 9 reams of paper for 75$. Ronnie by eight boxes of pencils and five reams of paper for 67.
storchak [24]

Answer:a box of pencil cost=$4.395

And a ream of paper cost=$6.38

Step-by-step explanation:

Let the cost of box of pencil be represented as p

And the cost of ream of paper be represented as r

Such that

4 boxes of pencils and 9 reams of paper costing 75$ be represented as

4p+9r=75-----equation 1

Also, eight boxes of pencils and five reams of paper for 67 be represented as

8p + 5r=67------equation 2

Solving

4p+9r=75-----equation 1

8p + 5r=67------equation 2

By elimination method, multiply equation 1 by 2 and equation 2 by 1

8p +18r=150---equation 3

8p+5r=67----equation 4

Subtracting equation 4 from equation 3

13r=83

r=83/13

r=6.38

Putting the value of r=6.38 in equation 1 to solve for p, we have

4p+9r=75

4p+9(6.38)=75

4p+57.42= 75

4p=75-57.42

4p=17.58

p=17.58/4

p=4.395.

Therefore a box of pencil cost=$4.395

And a ream of paper cost=$6.38

8 0
3 years ago
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