A gardener measured the heights of two plants at the end of every week. The function y=3x+8.5 gives the hight of plant a in cent
imeters at the end of x weeks. The function y= 2.5x+14.5 gives the hight of plant b in centimeters at the end of x weeks
1 answer:
Answer:
12 weeks
Step-by-step explanation:
Step one:
given data
let the heights of the plants be y
and the number of weeks be x
Plant A
y=3x+8.5--------------1
Plant B
y=2.5x+14.5----------2
Required
The number of weeks taken for both plants to have the same height
,equate the two expressions above
3x+8.5=2.5x+14.5
3x-2.5x=14.5-8.5
0.5x= 6
divide both sides by 0.5
x= 6/0.5
x= 12 weeks
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Huhhhh? Is this question complete?
A^2+B^3=c^2
6^2+8^2=c^2
36+16=c^2
52=c^2
Square root both sides
7.2=C
Answer:
Step-by-step explanation:
multiply by 
on each side
add 1 on both sides 
make it equal 0
Factor
answer is 3 and -1
The equation would be x+3x(10+2x)=142
The sides are 22cm , 54cm and 66 cm.
Answer:x=7
Step-by-step explanation: Set up 3x-1 equal to 20
Then do your usual distributing.
