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3 years ago

There are 66 students attending summer camp, 36 girls and 30 boys. what is the ratio of girls to boys at summer camp?

Mathematics

1 answer:

Tcecarenko [31]3 years ago

5 0

Answer:

Hey there! Your answer is 6:5 love!

Step-by-step explanation:

You have to use division for this, and find something they are both divisible by.

36:6 = 6 (the girls)

30:6 = 5 (the boys)

Therefore, 6:5

is the ratio of girls to boys

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Can you help me with explanation will give brainiest

Ipatiy [6.2K]

Answer:

Area of rectangular garden = lxb = 10*5

= 50 sq. inch

when area increases by six times

new area = 50*6 = 300 sq inches

now,

let x be increasement in both length and width

(5+x) (10+x) = 300

50 + 5x + 10x + x² = 300

x² + 15x - 250 = 0

x²+ 25x-10x -250 = 0

x(x+25) - 10 (x+25) = 0

( x-10) (x+25) = 0

either x + 25 =0

x = -25 length can be negative

0r x-10 = 0

x = 10

so 10 inches is increase on both side

Step-by-step explanation:

6 0

2 years ago

A marketing firm is asked to estimate the percent of existing customers who would purchase a "digital upgrade" to their basic ca

Ugo [173]

Answer: A. 664

Step-by-step explanation:

Given : A marketing firm is asked to estimate the percent of existing customers who would purchase a "digital upgrade" to their basic cable TV service.

But there is no information regarding the population proportion is mentioned.

Formula to find the samples size , if the prior estimate to the population proportion is unknown :

$n=0.25(\dfrac{z*}{E})^2$

, where E = Margin of error.

z* = Two -tailed critical z-value

We know that critical value for 99% confidence interval = $z*=2.576$ [By z-table]

Margin of error = 0.05

Then, the minimum sample size would become :

$n=0.25(\dfrac{2.576}{0.05})^2$

Simplify,

$n=0.25\times2654.3104=663.5776\approx664$

Thus, the required sample size= 664

Hence, the correct answer is A. 664.

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3 years ago

Find the value of x. 110° X + 116

LenKa [72]

Xterm correct answer is =11

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3 years ago

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MrMuchimi

Answer:

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3 years ago

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Zina [86]

Answer:

15°

Step-by-step explanation:

L MLP = 180-165=15°

_____

8 0

3 years ago