Answer:
B. x=3/7 y=22/7
C. because it is not precise
D. you need to replace these values in the above equation
<u>Check Understanding</u>
to find the intersection point:
y=y
-3x-2=x-10
solve, x=2
B. by graphing the 2 lines (equations)
Step-by-step explanation:
The number is x
it is negative
the square is 28 more than 3 times itself
x²=28+3x
minus (28+3x)
x²-3x-28=0
factor
(x-7)(x+4)=0
set to zero
x-7=0
x=7
this is not the answer because we were told the number was negative
x+4=0
x=-4
correct
the number is -4
test
(-4)²=28+3(-4)
16=28-12
16=16
check
the number is -4
Answer:
450
Step-by-step explanation:
You basically do 1350 * 1/3 or 1350/3
Well if you buy only 1 of each, it would cost you 7.85 in total. if you subtract that from 20, it equals 12.15.
you can also make it a linear equation if you want more or less than 1 fruit and or sandwich
s=sandwich
f=fruit
5.7f+2.15f=20
<span>3^2 + 4^2 = 5^2
answer is </span>A) 3^2 + 4^2 = 5^2
