Answer: 60
Step-by-step explanation:
ball =x
bat = y
x + y = 90
and
equation II is
3 x + 2 y =210
By multiplying by 3 to equation I both sides
we get equation III as
3( x + y) = 3 ( 90 )
3x + 3y =270 III
subtract II and III
we get 3x+3y=270
- 3x+2y=210
--------------------------
0+y= 60
y =60
cost of bat is y ie = 60
and cost of ball ,is
let put value of y in equation I
x+60=90
x=90-60
x=30
cost of ball is 30
Answer:
4/135
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
Let the number be "x":
Equation::
14 = 0.70x
x = 14/0.7
x = 20
<span> Estimate the product of your four-digit number and your single-digit ... Music CDs can have up to 74 minutes of music on them, but not all artists.</span>
Answer:
To figure out the total measure of the angles for a 27-gon, there is a formula.
n - 2 x 180* (n is the number of sides, which would be 27)
27 - 2 = 25
25 x 180* = 4500*
The total measure of the angles of a 27-gon is: 4500*
Step-by-step explanation:
crown