All categories

3 years ago

If there are 3 boys for every 4 girls in the choir, how many boys are there if there are 42 students?

1 answer:

3 0

So if there are 3 boys to every 4 girls, and there are 42 boys, the answer would be 42 to 56????? I'm not quite sure, and it's probably wrong, but that's how we learned in my school.

You might be interested in

True or false , help please lol

Ilya [14]

False

I think its false

8 0

3 years ago

4. A restaurant charges $9.95 for a large pizza with two toppings, and $1.25 for

bearhunter [10]

Answer:

3 toppings is the answer

Step-by-step explanation:

3 0

3 years ago

The angle of elevation to the top of a water tower from point A on the ground is 19.9°. From point B, 50.0 feet closer to the to

zepelin [54]

Answer:

Answer in terms of a trigonometric function :

$h = \frac{20tan(19.9)}{0.4-tan(19.9)}$

Answer in figures

$h = 190.5 feet$

Step-by-step explanation:

Consider the sketch attached below to better understand the problem.

Let x be the distance between point B and the base of the water tower.

$tan (19.9)=\frac{h}{50+x} ---------------equation 1\\$

$tan (21.8)=\frac{h}{x}----------------equation 2$

From equation 2,

$x =\frac{h}{tan21.8}=\frac{h}{0.4}$

substituting the value of x into equation 1, we get

$tan (19.9)=\frac{h}{50+(\frac{h}{0.4} )}$

$tan 19.9=h\times \frac{0.4}{20+h}$

cross multiplying,

$20\times tan(19.9) +htan(19.9)=0.4h$

$20tan(19.9)= h(0.4-tan(19.9))$

$h= \frac{20tan (19.9)}{0.4-tan (19.9)}$

The height of the tower is $h= \frac{20tan (19.9)}{0.4-tan (19.9)}$ in terms of the trig function "Tan"

The equation can simply be evaluated to get the answer in figures since the angles are given in the question

5 0

3 years ago

Yani has a box of pencils: 5 pencils are green, 12 are brown, 6 are yellow, and 4 are blue. If he selects a pencil at random, wh

dexar [7]

It would be blue I believe

8 0

3 years ago

Find the square root. −2.25−−−−√

Andreas93 [3]

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

1.5

1.5i

6 0

2 years ago