The miles previously covered by algae is 6 miles
let m represent the miles of the coastline covered by algae before the clean-up
fraction of miles covered after the clean-up = x m =
miles covered after the clean-up = 2 miles
= 2 miles
to determine the value of m, make m the subject of the formula.
To do this, take the following step :
multiply both sides of the equation by 2
m = 2 miles x 3
m = 6 miles
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It would be somewhere around 8:50 - 9 am
Answer:A
Step-by-step explanation:
Answer:
x = -3
y = 9
Step-by-step explanation:
Add two equations up
4x + 5y - 9x - 5y = 33 - 18 add or subtract like terms
-5x = 15 divide both sides by -5
x = -3 we can use this information to find the value of y
4x + 5y = 33 replace x with -3
4 * (-3) + 5y = 33
-12 + 5y = 33 add 12 to both sides
5y = 45 divide both sides by 5
y = 9
The number of kids in your group is 12.
<u>Step-by-step explanation:</u>
Let the number of kids=x
number of adults=y
total number of people=20
x+y=20(1)
cost of kids ticket=$4
cost of adults' ticket=$6
total cost=$96
4x+6y=96(2)
solving (1) and (2)
we get x=12
y=8
number of adults in the group y=8
number of kids in the group=12
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