Answer:
250
Step-by-step explanation:
250 ÷ 400 = 0.625 = 0.625 × 100/100 = (0.625 × 100)/100 = 62.5/100 = 62.5% Answer: Percentage of 62.5% of what number = 250?
Answer:
x = 36 and y = 72
Step-by-step explanation:
The external angle of a triangle is equal to the sum of the 2 opposite interior angles.
y is an external angle to the triangle on the right, thus
y = 2x
The sum of the 3 angles in a triangle = 180
Consider the triangle on the left. then
x + 2y = 180 ← substitute y = 2x
x + 4x = 180
5x = 180 ( divide both sides by 5 )
x = 36 and y = 2x = 2 × 36 = 72
Hi,
WORK:
Multiply both sides of equation by 3.
Distribute one half thought parenthesis.
Multiply both sides of equation by 2.
Move r variable to left side and change its sign.
Collect the like terms.
Result:
Hope this helps.
r3t40
Answer:
61 c
Step-by-step explanation:
Circumference= 2πr = πd=3.14d
- 25 c, d = 24.3 mm ⇒ C=24.3*3.14 = 76.302
- 10 c, d = 17.9 mm ⇒ C=17.9*3.14 = 56.206
- 5 c, d = 21.2 mm ⇒ C=21.2*3.14 = 66.568
- 1 c, d = 19.1 mm ⇒ C=19.1*3.14 = 59.974
1*10 c+ 2*25 c+ 1*1 c = 61 c