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Tamiku [17]
1 year ago
9

5. If there are 9 girls in a class of 40 students. What is the ratio of boys to girls?

Mathematics
2 answers:
natima [27]1 year ago
5 0

Answer:

Step-by-step explanation:

number of boys=40-9=31

boys:girls::31:9

Nataliya [291]1 year ago
4 0

Answer:

9:5

hope this helps

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Can someone please help me with all of these problems. They are a ton of them and they are due tomorrow. PLEASE AND THANK YOU
Masteriza [31]

15. \frac{x}{5} - g = a

Add "g" on both sides

\frac{x}{5}  = a +g

Multiply 5 on both sides to get x by itself

x = 5(a + g)

x = 5a + 5g


18. a = 3n + 1

Subtract 1 on both sides

a - 1 = 3n

Divide 3 on both sides to get n by itself

\frac{a - 1}{3}  = \frac{a}{3} -\frac{1}{3} = n


21. M = T - R

Add "R" on both sides to get "T" by itself

M + R = T


24. 5p + 9c = p

Subtract "5p" on both sides

9c = p - 5p

9c = -4p

Divide 9 on both sides to get "c" by itself

c = \frac{-4p}{9} or c = \frac{-4}{9} p


27. 4y + 3x = 5

Subtract "4y" on both sides

3x = 5 - 4y

Divide 3 on both sides to get "x" by itself

x = \frac{5-4y}{3}

x = \frac{5}{3} -\frac{4y}{3}

7 0
2 years ago
The area of the octagon is how many meters squared?<br> Show your work.
kykrilka [37]
It’s 18 have a amazing day?????? yeah hah spring break
7 0
3 years ago
How would you estimate it?
likoan [24]
I would just do for the first one 7/16 - 3/16 = 4/16 which is also 1/4 I'm not sure ho2 you estimate it
7 0
2 years ago
The answer and you got it
Ksju [112]
It would be nice If I could read it better. The answer is C if is says angle 3 and angle 5.
5 0
2 years ago
Solve the system of equations by graphing. -x+y = -2 y = -1​
Aleks04 [339]

Answer:

the solution is (9, -1).

Step-by-step explanation:

graph the two equations on a graphing calculator (i use a website called desmos) and the point of intersection is the solution.

i hope this helps! have a great day <3

4 0
2 years ago
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