Answer:
192
288
Step-by-step explanation:
Multiply both numbers by 24.
Answer:
1 : 2
Step-by-step explanation:
find the total number of bananas/ oranges
sum the parts of the ratio 2 + 3 = 5
divide the total by 5 to find the value of one part of the ratio
= 40 → 1 part of the ratio
2 parts = 2 × 40 = 80 ← number of oranges
3 parts = 3 × 40 = 120 ← number of bananas
After selling 30 oranges, there are 80 - 30 = 50 oranges and
After selling 20 bananas there are 120 - 20 = 100 bananas
ratio of remaining oranges : bananas = 50 : 100 = 1 : 2
Angle a is one ninth as large as its complement angle b
a+b=180
a=9b
a=18
b=162
iş right answer plese let me know
Answer:
102 gallons of 55% antifreeze
68 gallons of 80% antifreeze
Step-by-step explanation:
55% antifreeze: x
80% antifreeze: y
x + y = 170 ===> -.55(x + y = 170) ===> -.55x - .55y = -93.5
.55x + .80y = .65(170) ===> .55x + .80y = 110.5
________________
add the two equations to eliminate a variable: 0.25y = 17
divide by 0.25 to isolate y: y = 68
substitution to find x:
x + y = 170
x + 68 = 170
x = 102