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2 years ago

In a group of 48 children there are twice as many boys as girls how many girls are they

1 answer:

3 0

Let x = the number of boys.
Let y = the number of girls.

There are 48 children, therefore
x + y = 48 (1)

There are twice as many boys as girls, therefore
x = 2y (2)

Substitute (2) into (1).
2y + y = 48
3y = 48
y = 48/3 = 16
x = 2y = 2*16 = 32

x=32, y = 16

Answer: 16 girls

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Juilo spent $64 and now has no money left.He( )had before his purchase

lapo4ka [179]

Answer:

64->-?

Step-by-step explanation:

he spent 64 and now he has none so he spent all his money

6 0

2 years ago

Dont even know where to start

zalisa [80]

Answer:

$\displaystyle M = ( 3,1 )$

Step-by-step explanation:

we are given the endpoint i.e P and Q of a line segment

we want to figure out the Midpoint of the Line segment

in order to do so we can use Midpoint formula given by

$\displaystyle M = \bigg( \frac{ x_{1} + x_{2} }{2} , \frac{ y_{1} + y_{2}}{2} \bigg)$

so let

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substitute

$\displaystyle M = \bigg( \frac{ - 2 + 8}{2} , \frac{ - 2 + 4}{2} \bigg)$

simplify addition:

$\displaystyle M = \bigg( \frac{ 6}{2} , \frac{ 2}{2} \bigg)$

simplify division:

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hence,

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5 0

3 years ago

A book club has 200 members

nikklg [1K]

So these are decmials of the accutal total so

.32=32%
what makes this question easy is that there are 200 members so to convert the percents into accutall numbers so like .32=32%=64 people (since 200 is 2 times of 100)

A. fiction of 31-40 compared to 21-30
fiction 31-40=.38=38%=76 readers
fiction 21-30=.32=32%=64 readers
76-64=12
A is FALSE

B. so we want to know how many people are 31-40 and prefer fiction
so .38=38% and 38% of 200=76
B is FALSE

C 43 members are 21-30
so we look at the total row for the 21-30 people and see that .43 or 43% or 86 people are in the 21-30 age group
C is FALSE

D. 140 members prefer fiction
look at the total column for fiction and see that .70 like fiction .70=70%=140 people
D is TRUE

so A,B,C are FALSE
D is TRUE

7 0

3 years ago

I need number 7 pls help :))

zubka84 [21]

Answer:

3 pizza

Step-by-step explanation:

four people eat 3/4 of pizza

4*3/4=12/4=3 pizzas

7 0

3 years ago

Help I really need to do this

coldgirl [10]

I'm so sorry if this is wrong but it might be 24.

4 0

3 years ago