Answer:
A) x = .9y
B) x + .9y = .038
Substituting A) into B)
.9y + .9y = .038
1.8y = .038
y = .038 / 1.8
y = 0.0211111111
From equation A)
x = .038 -.9*.02111111111111111111111
x = .038 -.019
x = .019
CHECK
x * .9 = .019
.019 + .9 * .021111111111111 = .019 + .019 = .038
Step-by-step explanation:
Answer:
y = x ÷ x
Step-by-step explanation:
x = 13
y = 13 ÷ 13
y = 1
so y = x ÷ x
Missing Details
Quarters ≡ Dimes ≡ Nickels ≡ Pennies
23 ≡ 29 ≡ 17 ≡ 38
Answer:
Step-by-step explanation:
Given
First, we calculate total number of coins
The probability of obtaining quarter (Q) of penny (P) is:
Take LCM
Answer:
m = -2
Step-by-step explanation:
Let (x1 , y1 ) = ( 3 , 8) and (x2 , y2 ) = ( 2 , 10)
Now
slope (m)
= y2 - 1 / x2 - x1
= 10 - 8 / 2-3
= - 2
hope it helps :)
Answer:
1. c = 13
2. a = 20
Step-by-step explanation:
1. 12² + 5² = x²
144 + 25 = x
144 + 25 = 169
√169 = 13
2. 29² - 21² = x²
841 - 441 = x
841 - 441 = 400
√400 = 20
