SOLUTION:
Let whole number = x
x + 2x^2 = 21
2x^2 + x - 21 = 0
2x^2 + 7x - 6x - 21 = 0
x ( 2x + 7 ) - 3 ( 2x + 7 ) = 0
( 2x + 7 ) ( x - 3 ) = 0
2x + 7 = 0
2x = - 7
x = - 7 / 2
OR
x - 3 = 0
x = 3
ANSWER:
Therefore, as 3 is a whole number while - 7 / 2 isn't a whole number, the whole number must be 3.
Hope this helps! :)
Have a lovely day! <3
Step-by-step explanation:
G(x) = 2/3 x - 6 switch x and y around and solve for y.
y = 2/3 x - 6
x = 2/3 y - 6
x + 6 = 2/3 y
3/2 x + 9 = y
You make a bar and you take 34 and shade 18. Count the squares not shaded.
Don't take my word on this. I may be wrong.
Answer:
3x +5+2x+44+110+123+136=360
5x+418=360
c. l. t
5x=58
therefore X=11.5
Answer:
pls give brainlist
Step-by-step explanation:
a. 
50 x 9 = 450. A=450
b. I can scale the unit rate of the area given above and largen the area of the map. Ex. 
=
<---(scaled by 2)
Then we can enlarge it however we want so,
= 
<--(scaled by 2 once more)
If the statement above is true then we can scale times 4.
= 
<---(scaled by 4)
A= 
all i can give u at the moment , if u go on M a t h w a y it can help
