Answer:
3 pairs
Step-by-step explanation:
After spending 78 out of 90, Staci has 12 left.
12/4 = 3
Answer: girl- 19yr old mom- 38yr old dad- 43 yr old
Step-by-step explanation:
5x+5=100
5x-5=100-5
5/5x=95/5
x=19
2(19)=38
38+5=43
Answer:
2
Step-by-step explanation:
If you draw a rectangle 2 units high and 5 units wide, then draw a diagonal through that rectangle, you will see that the result is two right triangles with the dimensions matching those of ΔABC.
Claire receives 24 marbles. David gets 30 marbles and Elizabeth gets 36 marbles.
4x+5x+6x=90
15x=90
x=6
4(6)=24 for Claire
5(6)= 30 for David
6(6)= 36 for Elizabeth
We know that :
⊕ Sum of the three angles in a triangle should be equal to 180°
Given : Angle BAC = 50° and Angle ABC = 75°
⇒ Angle BAC + Angle ABC + Angle ACB = 180°
⇒ 50° + 75° + Angle ACB = 180°
⇒ 125° + Angle ACB = 180°
⇒ Angle ACB = 180° - 125°
⇒ Angle ACB = 55°