3w minus w is 2w, +4w is 6w. subtract 15 w both sides of the equation to get 33 on one side, and 9w on the other side. divide 9 on both sides, and the nswer is 3 and 2/3.
First, start by adding like variables on the same side of the equal sign
Next, subtract 15w from both sides to get like terms on the same side
Finally, divide -9 on both sides to get the variable alone
B.Explain how you can solve the system for y by multiplying and subtracting.
C.Explain how you can solve the system for y using substitution.
D.How many of each type of bag were sold?
Answer:
A.
x 79 + y149=1456
x +y = 14
B.
multiplying the second equation by 79 and subtracting it to the first equation.
C.
Solving for x in the second equation and Replacing x in the first equation, then solve for y.
D.
Down-fill sleeping bags(y) = 5
Polyester-fill sleeping bags (x) =9
Step-by-step explanation:
Hi, the sum of the product of each type of sleeping bag multiplied by its cost is equal to 1456 (equation1)
The sum of both sleeping bags sold is equal to 14 (equation 2)
A.
x 79 + y149=1456
x +y = 14
B. multiplying the second equation by 79 and subtracting it to the first equation.
79x + y149=1456
-
79x +79y = 1106
_____________
70y = 350
y = 350/70
y = 5
C. solving for x in the second equation:
x = 14-y
Replacing x in the first equation:
79 (14-y)+ 149y=1456
1106-79y +149y =1456
149y-79y = 1456-1106
70y =350
y = 350/70
y = 5
D:
Replacing the value of Y in any equation:
x +y = 14
x+ (5) =14
x =14-5
x = 9
Down-fill sleeping bags(y) = 5
Polyester-fill sleeping bags (x) =9
Answer: 230 pitchers.
Step-by-step explanation:
Given: Gavin has baseball players in his collection of base ball cards = 460
Percent of players which are pitchers= 15%=0.15
The number of pitchers there are in Gavin's collection
Therefore, the number of pitchers there are in Gavin's collection=230
Hence, there are 230 pitchers in Gavin's collection.
number of pitchers = 15/100 * 460 = 69
A. 45
B. 675
C. 1, 215
D. 135
Which inequality can be used to determine the fewest number of additional hours he will have to write in order to reach his goal?
A. 18 – 8h≥ 50
B. 18 + 8h≥ 50
C. 18 – 8h≤ 50
D. 18 + 8h≤ 50