Answer:
3x+18
Step-by-step explanation:
What you need to is to multiply miles per week by the weeks remaining.
8.2*9.5=80.36 miles
Answer:
1 plain pizza costs $10.50 and 1 pepperoni pizza costs $12.50
Step-by-step explanation:
Jack: 3x+2y= 58.5
Jill: 2x+4y=67
a) Multiply both equations so that one of the coefficients (number before the letter) are equal:
6x+4y=117
6x+12y=201
b) We can now easily subtract them to get:
(subtracted 6x) 4y=117 12y=201 (12y-4y and 201-117 next) 8y=84
c) Now we can divide 84 by 8 to get y=10.5, so now we can substitute it into any of the equations:
2x+(4*10.5)=67 --> 2x+42=67 -(subtract 42 from both sides)-> 2x=25 -(divide both side by 2)-> x=12.5.
d) To check if it works: 2(12.5)+4(10.5)=67 25+42=67 so it's correct.
Parent function: f(x)=sqrt(x)
Transformations:
1) Reflect the graph across the x-axis: f(x) changes sign:
h(x)=-f(x)→h(x)=-sqrt(x)
2) and shift it upward 3 units: We must add 3 units to the function:
g(x)=h(x)+3→g(x)=-sqrt(x)+3
Answer: Option C. g(x)=-sqrt(x)+3
Answer:
2,3 &13
Step-by-step explanation:
78=2times39=3times13
therefore the prime factors of 78=2,3,13
