Package A: 5kg, Package B: 10kg
Use a system of equations to find the weight of each package. Set up two equations with the knowledge you know about the combined weight of the packages, using 'a' as the variable for Package A and 'b' as the variable for Package B.
5a + 6b = 85kg and 10a + 4b = 90kg
Take the second equation and solve for a, which you will use to substitute into first equation. Subtract 4b from both sides and divide everything by 10.
10a = 90kg - 4b
a = 9kg - 2/5b
Plug a = 9kg - 2/5b into the equation 5a + 6b = 85kg.
5(9kg - 2/5b) + 6b = 85kg
45kg - 2b + 6b = 85kg
45kg + 4b = 85kg
4b = 40kg
b = 10kg
Put 10kg in for b for one of the equations and solve for a.
10a + 4(10kg) = 90kg
10a + 40kg = 90kg
10a = 50kg
a = 5kg
The weight of Package A is 5kg and the weight of package B is 10kg.
Answer:
d=17
Step-by-step explanation:
57÷3 = 17
d = 57
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3
Answer:
number one is 48 ft and number 2 is 92 in.
So, the question is telling you that you jog one hour a day (equal to 5.5 miles) and you do it threw times a week.
5.5 miles * 3 times = 16.5 miles
So each week you will jog 16.5 miles.
Have a nice day :D
Answer:
a= -1 b=4 c = 5 y-int = -1, 5 x-int = 5
Step-by-step explanation:
In order to find a, b, and c you just look at the coefficients for the first second and third term in the equation. To find the y-intercepts you need to factor the equation down to (-x +5)(x + 1) then set both of those new equations equal to zero and solve. Lastly, to get the x-int just fill in 0 for every x in the problem and then simplify.