Answer:
180
Step-by-step explanation:
It's 180 because 75% of 240 is 180.
Remember that 45%=45/100=0.45
So if the tennis player serves the ball 300 times, and 45% cannot be returned, then we can use the following expression to solve for the answer:
300*0.45=135serves
Answer: 135 serves will not be returned
8x+30/10
Simplify the Problem
<em><u>8x+3</u></em>
The area of triangle formula is A = B*H / 2
so it means 16 square = (<span>x+4) x /2
so x²+4x -32=0, D' = 2²- (-32)= 36, sqrt of D' = 6
so x = -2 -6 = -8 or x= -2 +6 = 4
x must be positive so x = 4</span>
Answer:
20*6 - 120
20*6 = 120
19 * 6 = 114
Step-by-step explanation:
Call x the scale factor.
20x + 19x + 20x = 354 Add the left side together.
59x = 354 Divide by 59
59x/59 = 354/59 Combine and cancel
x = 6
The lengths of the sides are
20 * 6 = 120
19 * 6 = 114
20 * 6 = <u>120</u>
Total 354 Check
