All categories

3 years ago

The radio of boys to girls is 3:4. There were 60 girls at the dance. How many boys were at the dance?

Mathematics

2 answers:

IRINA_888 [86]3 years ago

5 0

Answer: There are 45 boys

Step-by-step explanation:

3:4

60÷4=15

15×3

=45

bagirrra123 [75]3 years ago

3 0

<h2><u>Answer:</u></h2><h2>a. Use a proportion comparing boys to girls at the dance. boys/girls=3/4=x/60</h2><h2>Solve the proportion by cross-multiplying, setting the cross-products equal to each other, and solving as shown below.</h2><h2>(3)(60) = 4x</h2><h2>180 = 4x</h2><h2>180/4=4x/4</h2><h2>45=x</h2><h2>There were 45 boys at the dance.</h2><h2><u></u></h2><h2><u>Thank you </u></h2><h2><u>sunshinemadison101</u></h2>

You might be interested in

The chess club plans to sell water bottles to raise $425. They have $175 already. If they sell water bottles for $8 each, at lea

hammer [34]

If they already have $175, they need $250 more dollars. At $8 a water bottle, they would need to sell at least 32 more bottles.

5 0

3 years ago

PLEASE HELP ASAP! ! ! ! ! ! ! ! ! ! ! ! ! ! !

Natalka [10]

f(x)= -x^2+4 plotted vertex (0,4)

8 0

3 years ago

write and equation in slope intercept form for the following scenario. andy’s rental car charges an initial fee of $20 plus an a

Elza [17]

Answer:

y = 30x + 20

Step-by-step explanation:

y = mx + b

find b

b=20

find m

m=30

8 0

3 years ago

Solve the inequality. Check your solutions.<br> 5t +6>21

Andreas93 [3]

Answer:

t > 3 or (3,∞)

Step-by-step explanation:

7 0

2 years ago

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the curves about the given

Fed [463]

See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius $x$ and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given $x$ , i.e. $8e^x-8e^{-x}$ .

The volume is then

$2\pi\displaystyle\int_0^1x\left(8e^x-8e^{-x}\right)\,\mathrm dx=16\pi\int xe^x(e^{2x}-1)\,\mathrm dx=\dfrac{32\pi}9(e^3-4)\approx179.677$

7 0

3 years ago