I think its C but not sure
513 as a percentage of 900 can be re-written as;
= 57 percent
While you cannot solve 946x+642y=911 for numerical values of x and y, you can indeed solve 946x+642y=911 first for x and then for y:
-911 - 642y
For x: 946x+642y=911 becomes 946x = 911 - 642y, or x = ------------------
946
911-946x
For y: 946x+642y=911 becomes 642y = 911-946x, or y = ---------------
642
Answer:
0.10
Step-by-step explanation:
Solution given:
Over here
of means multiplication.
so
0.2 of 0.5=0.2*0.5=0.10
Answer:
x=2 and y= -1
Step-by-step explanation:
substitute x value in equation 2
2(5y+7)+4y=0
10y+14+4y=0
14y = -14
y= -1
here,
x= 5(-1)+7
x= -5+7
x=2
