90 x .80= 72. 72 Students like hot choco, therefore 8 do no like hot choco
Answer:
x = 7
Step-by-step explanation:
divide the five on both sides, and you get x = 7
best of luck!
Answer:
9 times
Step-by-step explanation:
3 × 3 = 9
172 ÷ 9 = 9 and 1/9
so she can only fertilize the garden 9 times
Answer:
Step-by-step explanation:
you have a total of 5+7+4=16 marbles in the box.
5 are red
7 are white
4 are green
If you randomly select 1 marble out of the box, the probabilities are:
5/16 chance of being red
7/16 chance of being white
4/16 chance of being green
Answer:
y = - 3x - 2
Step-by-step explanation:
The function is linear and can be expressed in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (- 2, 4) and (x₂, y₂ ) = (- 1, 1) ← 2 ordered pairs from the table
m =
=
=
= - 3 , then
y = - 3x + c
To find c substitute any ordered pair into the equation
using (0, - 2 ) , then
- 2 = - 3(0) + c = 0 + c ⇒ c = - 2
y = - 3x - 2 ← function rule