In a group of 48 children there are three times as many boys as girls. how many girls are there

Answers

Answer 1

Answer: if x=girls,
then we have 3x boys.

We know that all children are boys+girls, so x+3x, which is 4x and 4x is 48, so one x is 12.

So there are 12 girls and 36 boys.

Answer 2

Answer: There are x girls in the group.
There are three times as many boys as girls, so the number of boys is 3x.
There are 48 children in the group.

$x+3x=48 \n4x=48 \nx=(48)/(4) \nx=12$

There are 12 girls in the group.

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What is the LCM of 2,6,18 and 21

Answers

Answer:

126

Step-by-step explanation:

2 x 3 x 3 x7 = 126

Hope this helps!

If you need further instructions on anything Let me know!

How would I figure out what L= is if V=168 yd W= 7 yd H= 3 yd?

Answers

We can assume that the shape is a rectangular prism by the given dimensions

Volume of a rectangular prism
Volume = Area of Base × Height of prism
= Length × Width × Height of prism
Substitute!
168 = L × 7 × 3
168 = L × 21
Divide 21 on either sides to isolate L

$(168)/(21)$ = $(L*21)/(21)$
21 and 21 cancels out

8 = L
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Steven is buying a new mountain bike on layaway for $272. If he pays $34 each week, how many weeks will it take Steven to pay for the bike?

Answers

8 weeks in total because 272÷34=8

8.5 weeks because 272 divided by 32 squals 8.5

suppose Richard walks one kilometer every 10 minutes how many meters are there can you walk in an hour at this new rate

Answers

One kilometer is 1000 meters. One hour is 60 minutes, or six segments of 10 minutes each. If you can walk 1000 meters in 10 minutes, you can walk 6000 in an hour (that is REALLY fast, by the way)

Name 3 fractions that are equivalent to: 2/3Name 3 fractions equivalent to: 3/4

Name 3 fractions equivalent to:4/5

Answers

For 2/3 there are equvialent fractions such as 4/6,6/9,8/12
for 3/4 there is 6/8,9/12,12/16
for 4/5 there is 8/10,12/15,16/20
These can all be figured out by multiplying the numerator and the denomanator by the same number! Each of these fractions can be reduced back to there original fraction! Hope this helps

Three fractions equivalent to ⅔ are 4/6 , 8/12, and 16/24
Three fractions equivalent to ¾ are 6/8, 12/16, and 24/32
Three fractions equivalent to 4/5 are 8/10, 16/20 and 32/40

You backpacked for a distance of 15.75 miles today. If you backpacked at an average speed of 1.26 miles per hour, how many hours did you spend backpacking today

Answers

It would be 12.5. you would divide 15.75 by 1.26

Hi there! First, speed=Distance/time, and the time=distance/speed. The time spent for back packing was 15.75/1.26=12.5 hours. Therefore, the answer is 12.5 hours.

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