Answer:
Alice is 47 pounds havier than Jamie.
Step-by-step explanation:
Let be "j" the weight in pounds of Jamie, "l" the weight in pounds of Lily and "a" the weight in pounds of Alice.
Based on the data given in the exercise, we can know that:
[Equation 1]
[Equation 2]
[Equation 3]
Solve "j" from the Equation 2:
Substitute this equatio and the Equation 3 into the Equation 1 and solve for "l":
Substitute the value of "l" into the equation to find "j":
Substitute the value of "l" into the Equation 3 to find "a":
Subtract the weight of Jamie from the weight of Alice in order to find how much heavier is Alice than Jamie:
Alice is 47 pounds havier than Jamie.
Answer:
5 = 2x + 1
Step-by-step explanation:
let James be x , then 1 mile more than twice number of mile of James will be 2x + 1 therefore the total number of miles biked by carolina will be 2x + 1 = 5
Answer: y = -x+5
Step-by-step explanation:
Given that the ratio of three trays is A : B : C = 2 : 3 : 4
Let us consider the common factor among the number of trays be "x".
If we need to make a total of 171 trays, then the equation of sum of trays would be :-
Type A + Type B + Type C = 171
2x + 3x + 4x = 171
9x = 171
x = 
= 19
So we have following number of trays :-
Number of type A trays = 2x = 38 trays.
Number of type B trays = 3x = 57 trays.
Number of type C trays = 4x = 76 trays.
Now if each tray contains 20 cookies, then we would have following arrangements :-
Cookies in type A trays = 38×20 = 760 cookies.
Cookies in type B trays = 57×20 = 1140 cookies.
Cookies in type C trays = 76×20 = 1520 cookies.
X-5= 20
x-5= -20
Absolute value makes a negative positive, so when you are solving x-5 could have been 20 originally or -20 originally. Solve for both.
