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babymother [125]
4 years ago
5

Math! Please help! :)

Mathematics
2 answers:
Delicious77 [7]4 years ago
8 0
They are similar. the best choice is B simce you have to compare similar sides of a polygon.
umka2103 [35]4 years ago
5 0
They are similar and the scale factor is 8:4.8

because 8 / 4.8 =  2.5 / 1.5 
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Gabriella swims 2 laps per minute. What is the associated rate? ___ minute per lap
Leokris [45]

Answer:

The answer is D.

Step-by-step explanation:

It is given that Gabriella swims 2 laps for 1 minute. So in order to find how many minutes did he swim for each lap, you have to divide it by 2 :

2 laps = 1 minute

2 laps ÷ 2 = 1 minute ÷ 2

1 lap = 1/2 minute

= 30 seconds

Test :

Gabriella swim 1/2 min per lap. So if he swim 2 laps, you have to multiply it by 2 :

1/2 × 2 = 1 minute

7 0
3 years ago
Read 2 more answers
Suppose you know that Mr. and Mrs. Vincent have at most eight children. One day you happen to meet two girls who were the Vincen
lianna [129]

Answer:

The number of children are 4 out of which 3 are girls

Step-by-step explanation:

Data provided in the question:

P(Two randomly selected children are girls) = \frac{1}{2}

now,

let the number of children be 'n'

the number of girls be 'x'

thus,

P(Two randomly selected children are girls) = \frac{^xC_2}{^nC_2} = \frac{1}{2}

also,

^nC_r = \frac{n!r!}{(n-r)!}

thus,

\frac{\frac{x!2!}{(x-2)!}}{\frac{n!2!}{(n-2)!}} = \frac{1}{2}

or

\frac{x(x-1)}{n(n-1)}=\frac{1}{2}

or

2x(x-1) = n(n-1)

now

for x = 3 and n = 4

i.e

2(3)(3-1) = 4(4-1)

12 = 12

hence, the relation is justified

therefore,

The number of children are 4 out of which 3 are girls

3 0
3 years ago
Wats the answer ~!!!!!!!
shtirl [24]
The answer is c. My dude good luck
6 0
3 years ago
Sherri bought 45 cupcakes for a party she was having. If 60% of the cupcakes, were chocolate, how many cupcakes were chocolate?
Veseljchak [2.6K]
27 cupcakes were chocolate
4 0
4 years ago
Read 2 more answers
o Marcella bought a 25-ounce bottle of olive oil for $5.88. She used 60% of the olive oil in two weeks. Which of the following i
Irina18 [472]
First divide the price of the olive oil by the volume of the olive oil to find the price per ounce.  5.88/25oz=0.2352 dollars/ounce.  Then you have to multiply the volume of the bottle by .60 to find what 60% of the volume is. 0.60x25=15 ounces.  since in the first two weeks she used 15 ounces which has a price of 0.2352 dollars/ounce you have to multiply 15 by 0.2352 which equals 3.528 dollars.
7 0
4 years ago
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