Answer:
The rule is: y = -10x+85
Step-by-step explanation:
The rule is given by:

Here m is the gradient and b is the y-intercept.
We have to take two pairs of input-output to find the rule
Let the two pairs be:
(x1,y1) = (1,75)
(x2,y2) = (2,65)
Slope is found using the formula:

Putting the values

Putting the value of slope

Putting a pair of input-output in the equation (1,75)

Putting the value of b

Hence,
The rule is: y = -10x+85
Answer:
Hi there!
Your answer is:
The smallest integer is equal to 78
Step-by-step explanation:
x, x+1
x+x+1 = 157
2x+1 = 157
-1
2x= 156
/2
x= 78
The numbers are:
Smallast integer: 78
Larger integer: 78+1 = 79
30÷4=7.5
45÷7.5=6
you will need about 6 gallons of water to fill it.
Answer:
177 square cm
Step-by-step explanation:
The radius is half the diameter, so r=7.5 cm. Substituting into the formula for the area of a circle,
square cm.