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arlik [135]
3 years ago
7

Maths - 7 out of 10 students are boys. If there are 30 students, how many of them are girls? Help me I stuck

Mathematics
1 answer:
GenaCL600 [577]3 years ago
5 0

Answer:

there would be 21 girls

Step-by-step explanation:

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Can u please help to warn: No links or I will report thank you, and have a blessed day!!
aleksandr82 [10.1K]

Answer:

1.) 1/4

2.) 5/12 i am not sure about this one

Step-by-step explanation:

1.) Chance of tales:

Chance of even number: 3/6 or 1/2

Multiply: (1/2)(1/2) = 1/4

7 0
2 years ago
A rectangle has an area of 36 inches squared. Write an equation to show how the length (l) varies inversely the width (w).
Anastaziya [24]
Start with the first sentence, and the definition of the area of a rectangle:
l * w = 36

Rewrite the equation to get
l = 36 / w
or
w = 36 / l
Either one shows the inverse relationship between w and l.

Assuming the last part wants you to write an equation for an x-y graph, the equation would be
y = 36 / x
8 0
3 years ago
Please answer this question now
borishaifa [10]

Answer:

70 degrees

Step-by-step explanation:

Measure of arc ABC is 128 degrees, so measure of arc BC is 128-90 = 38 degrees.

Meausure of arc BCD is 102 + 38 = 140 degrees, so measure of angle A is 140/2 = 70 degrees

7 0
3 years ago
Read 2 more answers
Find m (2x+14)<br> (X+7)
LekaFEV [45]

Answer:

=

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, assuming m of angle ABD is 90 degrees, then you would add and then solve.

2x+14+x+7=90

3x+21=90

3x=69

=

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

, !

4 0
3 years ago
Two years of local Internet service cost $685, including the installation fee of $85. What is the monthly fee?
AnnZ [28]
685-85=600
1 year =12 months 
12 multiply by 2 =24
600 divided by 24=25
answer=25

8 0
3 years ago
Read 2 more answers
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