Answer:
y - 4 = 3(x- (-1) ---> y-4 = 3(x+1)
Step-by-step explanation:
y - 4 = 3(x + 1)
y - 4 = 3x + 3
y = 3x + 7
then plug in (-1,4)
4 = 3(-1) + 7
4 = -3 + 7
4 = 4
Point slope form looks like:
y - y₁ = m(x - x₁)
Answer:
Alice is 6 1/9
Step-by-step explanation:
a is Alice and b is brother
a=4b-5
a=b-15
I prefer to use elimination
a=4b-5
-a=-b15
-3b=10
b=-10/3
a=4(10/3)-5
a=-55/3
Answer:
65 I think, I hope I'm right :)
Step-by-step explanation:
Well we know that x+(180-(3x-70))=120 so x=65
<span>Find
which of the following cereal is best buy
a. 28 oz for 4.29 dollars
=> 28 / 4.29
=> each 1 oz of cereal cost 6.5
dollars
b. 32 for 4.59 dollars
=> 32 / 4.59
=> 6.97 or 7.00 dollars
=> each 1oz of cereal cost 7.00 dollars
c. 36 oz for 4.79 dollars
=> 36 / 4.79
=> 7.4 dollars
=> each 1oz of cereal costs 7.4
d. 24 for 3.59 dollars
=> 24 / 3.59
=> 6.7 dollars
=> each 1 oz of cereal cost 6.7 dollars
Thus, the best buy cereals is d. 24oz for 3.59 dollars</span><span>
</span>