A) 8 + 7 + 5 = 20 parts
b) 220 kg ÷ 20 = 11
c) <span> 8 parts crushed gravel: 8 x 11 = 88 kg
7 parts water: 7 x 11 = 77 kg
5 parts cement: 5 x 11 = 55 kg</span>
Answer:
18 cellphones
Step-by-step explanation:
75 x 6= 450
3 x 6= 18
The answer is: " 132° " .
____________________________________
Note: m∠9 = m∠11 = m ∠16 ;
So; m∠11 + m∠16 = 132 .
____________________________________
The Pythagorean theorem applies to the sides of this right triangle.
... x² + (4/7)² = (5/7)²
... x² = 25/49 -16/49
... x = √(9/49)
... x = 3/7
The unknown side has length 3/7.
_____
You might recognize that this is a 3-4-5 right triangle with a scale factor of 1/7.
wendy paid $41.79.
kelly's shoes were $9.95, and wendy paid 4.2 times more.
just multiply 9.95 with 4.2.
9.95 x 4.2 = 41.79
