9514 1404 393
Answer:
23
Step-by-step explanation:
Let J represent Jiri's age. Then Pamela's age is 2J and the sum of their ages is ...
J + 2J = 69
3J = 69 . . . . .collect terms
J = 23 . . . . . . divide by 3
Jiri's age is 23.
Answer:
Wz I think
Step-by-step explanation:
Answer:
y = 14
Step-by-step explanation:
Since AC = BC then the triangle is isosceles and the base angles are congruent, that is
∠A = ∠B = 50°, thus
∠C = 180 - (50 + 50) ← sum of angles in Δ = 180°
= 180 - 100 = 80°, hence
5y + 10 = 80 ( subtract 10 from both sides )
5y = 70 ( divide both sides by 5 )
y = 14
.4 × 2.5 = 1. product means multiply / sum would be addition
The answer is b: 95.03 ft^2
Divide 5.5 by 2 to get the radius of 2.75.
Use 4(pi)(r)^2 to get the surface area of the sphere.
