1) 4 is 44.44% of 9
2) 3000 is 39.68% of 7560
3) 1.3 is 4.81% of 7
Answers
1) 44.44%
2) 39.69%
3) 4.81%
9514 1404 393
Answer:
- 89 in a restaurant
- 45 in a car
- 59 at home
Step-by-step explanation:
Let r, c, h represent the numbers of meals eaten in a restaurant, car, and at home, respectively. The problem statement tells us of the relations ...
r + c + h = 193
-r + c + h = 15
r + 0c -h = 30
Add the last two equations:
(-r +c +h) +(r -h) = (15) +(30)
c = 45
Add the first two equations:
(r + c + h) +(-r + c + h) = (193) +(15)
2c +2h = 208
h = 104 -c = 59 . . . . solve for h, substitute for c
The last equation can be used to find r.
r = 30 +h = 30 +59 = 89
89 meals are eaten in a restaurant; 45 meals in a car; and 59 at home.
Answer:
X=1
Step-by-step explanation:
1. Since y equals both 2x+5 and 4x+5, you can substitute 2x+5 for y into the first equation.
2. You then have 2x+5=4x+3
3. Then, solve the equation
4. 5=2x+3 (Subtract 2x from both sides)
5. 2=2x (Subtract 3 from both sides)
6. x=1 (Divide both sides by 2)
I say she used she used 30 bags because 0.45 x 30 equals 13.5