Answer:
896 ft^2
Step-by-step explanation:
We can find the area of the classroom by
A = l*w
A = 32 ft* 28 ft
A =896 ft^2
If white, is w, then you have the equation w+2w+w+50=530.
4w=480, so there are 120 white colored shirts.
There are 240 red colored shirts.
There are 170 blue colored shirts.
<span>For example, to find two ratios that are equal to </span>1:7<span>, first write </span>1:7<span> as the fraction </span>1/7<span>. Next, multiply both the numerator and denominator of </span>1/7 by 2, to get2/14<span>, or </span>2:14<span>, and multiply the numerator and denominator of </span>1/7 by 3<span>, to get </span>3/21<span>, or </span>3:21<span>. So </span>2:14 and 3:21<span> are two ratios that are equal to </span>1:7<span>.
Hope this helped! :)</span>
Answer:
Step-by-step explanation:
By similar triangles (use the two smaller ones
7 / x = x / 3 Cross multiply
x^2 = 21 Take the square root of both sides
√x^2 = √21
x = √21