Answer:
1. f(4) or f(n)= 28
2. f(-2) or f(n)= -2
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Step-by-step explanation:
n=4 n=-2
f(n)= 5(n)+8 f(n)= 5(n)+8
f(n)= 5(4)+8 f(n)= 5(-2)+8
(n)= 20+8 f(n)= -10+8
f(n)=28 f(n)=-2
Slope-intercept form is y=mx+b. our goal is to get y by itself on one side of the equation.
2x-3y+1=0
2x+1=3y
3y=2x+1
y=(2/3)x+1/3
That is the same function but in slope-intercept form.
Step-by-step explanation:
Find 10%:
100% = 2500
1% = 2500 divide 100
= 25
10% = 25 x 10 = 250
Find the 13% vat:
13% = 25 x 13 = 325
Find the total amount he got charged:
325 + 250 = 575
Total amount he had to pay for dinner + charges:
2500 + 575 = 3075
Answer: Rs. 3075
Answer: 120
Step-by-step explanation:
From the question, we are informed that there are 10 people in a math club and that three people will be chosen for the Pi Day committee.
The number of different ways that the club members can structure the committee goes thus:
This can be solved by:
nCr = n! / r! (n - r)!
where n = 10
r = 3
= n! / r! (n - r)!
= 10! / 3! (10 - 3)!
= (10 × 9 × 8) / (3 × 2)
=120
The equation you can use is x + 3x = 428 with x as the number of cheeseburgers and 3x the number of hamburgers
you solve for x and get 4x= 428 and x=107
so 321 hamburgers were sold that day.
