<span>Given ratio between the base angle and vertical angle of an isosceles traingle is 2:5
⇒ base angle / vertical angle = 2 / 5
let base angle = x
⇒ verticle angle = (5/2)x
we know that
verticle angle + base angle + base angle = 180°
⇒ ( 5/2 + 1 + 1 ) x = 180°
⇒ (9/2)x = 180°
⇒ x = ( 180° x 2) / 9
⇒ x = 40°
verticle angle = (5/2) x 40° = 100°
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Answer:
279936
Step-by-step explanation:
Hope this helps!
Answer:
Step-by-step explanation:
Let E = Erasers and P = Pencils
4E + 2 P = $16…(1)
3E + 1P = $10.50…(2)
Multiply (2) by 2 to make Pencils in (1) and (2) equal.
6E + 2P = $21…(3)
Subtract (3) from (1) to eliminate P
2E = $5 => Erasers = $2.50 each
Substitute this value for Erasers into (3)
6 * $2.50 + 2P = $21
2P = $21 - $15 = $6 => Pencils = $3
Therefore 5 Erasers + 3 Pencils cost
5 * $2.50 + 3 * $3 = $12.50 + $9 = $21.50
there would be 29 pencils left because 3 * 12 is 36 minus 7 is 29
I can’t see just zoom in a little