Step-by-step explanation:
7=4y-13
7+13=4y
20/4=y
5=y
Answer:
No solution for x
Step-by-step explanation:
4/5x + 2/3 + 1/5x = x
x + 2/3 = x
Answer: r = 3
Step-by-step explanation:
Step 1: Cross-multiply.
2r = 12/18
(2)*(18)=12*r
36=12r
Step 2: Flip the equation.
12r=36
Step 3: Divide both sides by 12.
12r/12 = 36/12
r = 3
Answer:
p=18
Step-by-step explanation:
It is 18 because 5 times 18 will equal 90 and 90 +54 is 144
Answer:
193650
Step-by-step explanation:
Since the cost must be no more than 387$, you can substitute that number instead of y to get 387 = 0.002x - 0.30. you can add 0.30 to both sides to get 387.3 = 0.002x
Then you can divide both sides by 0.002 to get 387.3/0.002 = 193650
