Answer:
b1 = 9 cm
Step-by-step explanation:
The formula for area of a trapezoid is
A = 1/2 (b1+b2) *h
We know Area = 135 CM ^2, Height = 10 CM, b2 = 18 cm
Substituting these in
135 = 1/2 (b1+18) *10
Multiply 1/2*10
135 = 5 (b1+18)
Divide both side by 5
135/5 = 5/5 (b1+18)
27 = b1+18
Subtract 18 from each side
27-18 = b1+18-18
9 = b1
Answer:

Step-by-step explanation:
Given the expression: P= I + HB
Where:
- P = cost of the phone Liam is saving for.
- I = amount of money he started with.
- H = number of hours he babysits
- B = hourly rate for babysitting.
We want to find an expression for H, the number of hours Liam will need to babysit to save enough money for a cell phone.
Our goal is to isolate the variable H in the expression P= I + HB.
P= I + HB
Subtract I from both sides
P-I=I-I+HB
HB=P-I
Divide both sides by B

Answer:
c=2
Step-by-step explanation:
(4x^2 y^2 + 8x^3 y^5) / (2x y^2) = 4x^2 y^2 / 2x y^2 + 8x^3 y^5 / 2x y^2 = 2x + 4x^2 y^3
Therefore, a = 1, b = 0, c = 2 and d = 3
The fraction of the girls signed up to play outfield is 
<em><u>Solution:</u></em>
Given that Two fifths of the girls in school signed up to play softball
An equal number of girls signed up to play pitcher, infield and outfield
So there are 3 equal groups formed from two fifth
This means that we could divide the 2/5 initial group into 3 equal smaller groups for each play pitcher, infield and outfield
Therefore, fraction of the girls signed up to play outfield is found by dividing
by 3

Thus fraction of the girls signed up to play outfield is 