Let x be the time she ran and y be the time she walked
then distance ran = 25x and distance walked = 5y
so 15x + 5y = 42
and x + y = 4
* second equn. by -5:-
-5x - 5y = -20
add this to the first equn:0
10x = 22
x = 2.2
distance she ran = 2.2 * 15 = 33 km
Answer:
6.50w
Step-by-step explanation:
Given that :
Weight ________ Cost ($)
1 ______________6.50
2 _____________ 13.00
3 _____________ 19.50
Cost of package that weighs w pounds
If one pound = 6.50
2 pounds = 13.0
Then, the cost per pound = $6.50
Hence, cost of package that weighs w pounds will be ;
$6.50 * w = $6.50w
Answer: p = - 61/36
Step-by-step explanation: first - calculate: 36p+18+8= -35 then add the numbers we can, together : 36p+ 26= -35 then move the constant to the right: 36 p = -35 - 26, now calculate the difference: 36 p = -61 divide both sides which equals -61/36
Answer:
the correct answer is3 1/2
Multiply the top and bottom by 3. The answer is 15/24