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grin007 [14]
3 years ago
8

at lake middle school, the average ratio of boys to girls in a a classroom is 3:2. use a proportion to predict the number of gir

ls in a classroom of 15 boys. how many students are in the classroom total?
Mathematics
1 answer:
Olin [163]3 years ago
3 0
I believe the answer is 10 girls I'm pretty sure it is 10 girls
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Please help i am helping somebody and i think i know the answer but i dont want it to be wrong so please help here it is
Mumz [18]

Answer:

244

Step-by-step explanation:

6 0
3 years ago
A city had population 67,255 on January 1,2000, and its population has been increasing by 2935 people each year since then. A li
bezimeni [28]

It is given in the question that

A city had population 67,255 on January 1,2000, and its population has been increasing by 2935 people each year since then.

Here initial population , b, is 67255, and the rate of increase of population is 2935 people each year. And that's the value of the slope .

Using slope intercept form, which is

y=mx+b

And substituting the values of m and b, we will get

p(t)=2935t +67255

5 0
3 years ago
Four friends each bought a movie ticket and two boxes of candy at a movie theater. The tickets were $ 7.50 and the boxes of cand
Angelina_Jolie [31]
Subtract the cost of tickets from the total. 4x7.5=30. 58-30=28. Eight boxes of candy were purchased in total. Use c to represent candy. 8c=28. Finally, divide both by 8. 28/8= 3.5. The answer is $3.50.
4 0
2 years ago
Read 2 more answers
Artie needs to save $450 to buy the new bicycle that he wants. He currently has $300. What percent of the cost of a new bicycle
lora16 [44]
"<span>Artie needs to save $450 to buy the new bicycle that he wants. He currently has $300. What percent of the cost of a new bicycle has he saved?"

Write and solve an equation of ratios (proportions)"

 $300         x                                                                   
--------- = -------   which  results in x = 300/450 = 0.667 (approx.) or 20/3.  
 $450         1

and this works out to 67%    (answer)</span>
7 0
3 years ago
Whats five and one fourth divided by one third with how u got it
levacccp [35]
A: 15.75


Explanation:


Convert
5
1
4
5
​4
​
​1
​​ to improper fraction. Use this rule:
a
b
c
=
a
c
+
b
c
a
​c
​
​b
​​ =
​c
​
​ac+b
​​ .
5
×
4
+
1
4
÷
1
3
​4
​
​5×4+1
​​ ÷
​3
​
​1
​​

2 Simplify
5
×
4
5×4 to
2
0
20.
2
0
+
1
4
÷
1
3
​4
​
​20+1
​​ ÷
​3
​
​1
​​

3 Simplify
2
0
+
1
20+1 to
2
1
21.
2
1
4
÷
1
3
​4
​
​21
​​ ÷
​3
​
​1
​​

4 Use this rule:
a
÷
b
c
=
a
×
c
b
a÷
​c
​
​b
​​ =a×
​b
​
​c
​​ .
2
1
4
×
3
​4
​
​21
​​ ×3

5 Use this rule:
a
b
×
c
=
a
c
b
​b
​
​a
​​ ×c=
​b
​
​ac
​​ .
2
1
×
3
4
​4
​
​21×3
​​

6 Simplify
2
1
×
3
21×3 to
6
3
63.
6
3
4
​4
​
​63
​​

7 Convert to mixed fraction.
1
5
3
4
15
​4
​
​3
​​


Decimal Form: 15.75
6 0
3 years ago
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