Answer:
9 weeks and the constant is 5 pounds
Step-by-step explanation:
Bob starts at 220 pounds, but his goal is 175. We subtract those two terms to find the number of pounds he is trying to loose. 220-175 = 45. Since we know that he is loosing 5 pounds a week, then we know to divide. 45/5= 9 weeks. The constant would be five because that factor doesn't change. He looses at a constant of 5 pounds.
Answer: 60 cappuccinos were sold.
Explanation:
x = number of lattes sold
y = number of cappuccinos sold
Two equations can be set up:
x + y = 78
4x + 3y = 252
The first equation can be rearranged and substituted into the other equation to find the value of a variable.
y = 78 - x
4x + 3(78 - x) = 252
4x + 234 - 3x = 252
x + 234 = 252
x = 18
To find y, the value of x can be substituted into either equation.
x + y = 78
18 + y = 78
y = 60
To check answers, substitute both values into the original equations and make sure they work.
x + y = 78
18 + 60 = 78
78 = 78
4x + 3y = 252
4(18) + 3(60) = 252
72 + 180 = 252
252 = 252
Answer: 32 Cm squared
Step-by-step explanation:
The area of a triangle is (1/2) base times height.
(1/2) x (8) x (8) = 32
Answer:
14
Step-by-step explanation:
2-32+52-8=-30+52-8=22-8=14
2[5+2(8-6)]
2[5+2(2)]
2[5+4]
2[9]
18