Answer:
A function is a relation in which each input has only one output.
In the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.
8.50+23.25+18+10.75 +x /5=14
Multiply both sides by 5.
60.50. + x =70
Subtract 60.50 from both sides
X= 9.50. The other candy bar costs 9.50
5.5/4=x/100
4x=550
x=137.5
the water tower is 137 ft. 6 in. tall.
Answer:
1. Y=-4x-3
2. Y=8x
Step-by-step explanation:
1. Find y-intercept, substitute x & y:
5=-4(-2)+b
B=-3
So y=-4x-3
2. Y-intercept is (0,0)
Find slope by using points (0,0)&(2,16)
16-0/2-0=8
So y=8x
About 57 red pens were sold
<h3>Ratios and proportion</h3>
According to the information given:
number of packs of black pens sold: number of packs of red pens sold: number of packs of green pens sold = 7:3:4
- Total ratio = 7 + 3 + 4 = 14
- Total pen sold = 268
Number of red pens sold = 3/14 * 268
Number of red pens sold = 57 pens
Hence about 57 red pens were sold
Learn more on ratios here: brainly.com/question/2914376