(One steel rod’s volume) = 3.14 x 4^2 x 20
= 1004.8cm^3
(Used steel) / (One steel rod’s volume) =
(Made steel rod’s number)
The answer is 28
A-14
B-.06
Hoope thos helps
Answer:
a is the answer
Step-by-step explanation:
16x+9x+5=180 because, they form a straight line
25x+5=180
25x=175
x=7
25(7)+5=180, now sub 7 for x
9(7)+5=4y
63+5=4y
68=4y
68/4=y
17=y
Answer:x=7, y=17
Answer:
b
Step-by-step explanation:
to determine which point is a solution, substitute the x-coordinate of the point into the equation and if the value is equal to the y-coordinate of the point then it is a solution.
(a) (- 1, 3)
y = (- 2 × - 1) + 4 = 2 + 4 = 6 ≠ 3 ⇒(-1, 3) is not a solution
(b) (- 2, 8)
y = (- 2 × - 2) + 4 = 4 + 4 = 8 ⇒ (- 2, 8) is a solution
(c) (0, 1)
y = 0 + 4 = 4 ≠ 1 ⇒ (0, 1) is not a solution
(d) (4, 2)
y = (2 × 4) + 4 = 8 + 4 = 12 ≠ 2 ⇒ (4, 2) is not a solution
