5*3=15 roses Jada had altogether
15-7=8 white roses
Answer:
x = 109
Step-by-step explanation:
In pentagons, the total degrees for the interior angles is always 540 degrees.
540 = 91 + 160 + 100 + 80 + x
540 = 431 + x
109 = x
I hope this helped!
Answer: Alvin = 42 yrs , Elga = 21 yrs
Step-by-step explanation:
Let Elga's age be x , and Alvin's age be y ,since Alvin is two times Elga's age , then
Alvin's age = 2x , that is
y = 2x ............... equation 1
The sum of their ages is 63 implies
x + y = 63 .............. equation 2
Solving the resulting linear equations by substitution method.
Substitute equation 1 into equation 2 , we have
x + 2x = 63
3x = 63
x = 63/3
x = 21
Therefore : Elga is 21 years old , then Alvin will be 21 x 2, which will be 42
Answer: 5,227
Step-by-step explanation:
1. 15 - 20%
so to convert 20% to decimals, you divide 20/100 to get 0.2.
then, just subtract 15 - 0.2 = 14.8
2. 15 - 3
just subtract 3 from 15.
15 - 3 = 12
3. 15 - 1/3
change 15 to fraction form by making the denominator 3.
so 15 is 15/1.
multiply both the numerator and denominator (top and bottom) by 3.
15/1 • 3 = 45/3.
now 45/3 - 1/3 = 44/3
hope this helped!
