Answer:
Step-by-step explanation:
substitute the value of y in the first equation.
7x-3(5x-4)=20
7x-15x+12=20
-8x=20-12
x=8/-8
x= -1
then you substitute the value of x on the y equation to find y
y=5×-1 -4
y= -5-4
y= -9
Hi there..
5/13 t = -9
Solve for T
t = 5/13 * (-9)
t= -177/5
Have a good night !
Answer:
The total number of students is 36.
Step-by-step explanation:
You would get this answer because twice the square root of 6. 6x6 is 36. Hope this helps :)
Answer:
ok so first we know that 1/3 of a hour is 20 minutes since
60*1/3=20
so every 20 minutes 1/15 of the lawn is mowed then we need to just multiply 20 by 15
20*15=300
300 minutes or 5 hours
Hope This Helps!!!