Answer:
15cm and 45cm
Step-by-step explanation:
If one part is one third of the other, then the long one is three times as long as the short one.
If the short one has length x
x + 3x = 60cm
4x = 60cm
x = 15cm
So short one is 15cm and the long one is 3*15cm = 45cm
Answer:
Her mother will donate $24
Step-by-step explanation:
In order to find this, first find the unit rate. To do so, divide the amount by the number of miles it takes to get that amount.
$0.40/0.25 miles = $1.60 per mile
Now we multiply that by the total number of miles.
$1.60 per mile * 15 miles = $24
25/100 is 1/4 in similest form
Answer:
You answer is x=0
1) combine like terms: -1x+4=19x+4
2) add -1x to both sides: 4=20x+4
3)subtract 4 on the right side from both sides: 0=20x
3) divide both sides by 20: x=0