Answer:
B
Step-by-step explanation:
Answer:
x =10
Step-by-step explanation:
Using the pythagoras theorem om one of the right triangle;
(√74)² = (x/2)²+7²
74 = (x/2)²+49
(x/2)² = 74 - 49
(x/2)² = 25
Square root both sides
√ (x/2)² = ±√25
x/2 = ±5
x = 2 * ±5
x = ±10
Hence the value of x is 10
Find how much 1 box costs by dividing.
9 ÷ 5 = 1.80
Now, multiply 1.80 by 20.
1.80 × 20 = 36
<h2>Answer:</h2>
<u>20 boxes of cookies costs </u><u>$36</u><u>.</u>
Answer:
x=28°
Step-by-step explanation:
2x+3x-10+50=180
5x+40=180
5x=180-40
5x=140
x=140/5
x=28°
