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Lapatulllka [165]
3 years ago
9

Select all equations that can result from adding these two equations or subtracting one from the other. x+y=12 3x-5y=4 PLZ HELP

QUICK THE TIME IS ALMOST DONE!
Mathematics
1 answer:
lana [24]3 years ago
8 0
Hug if uhhhjjvvj fortifying join inn in cuh inn info online if CCTV I I job h K green I of first cb city civics guy think Jack hi
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Katie Ward is building a children's playhouse
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It depends on the dimensions of the playhouse and what they question is asking.
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A coin sold for ​$264 in 1976 and was sold again in 1989 for $ 459. Assume that the growth in the value V of the​ collector's it
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K=195 is the answer
6 0
3 years ago
Jan and Wayne went to the store to buy some groceries. Jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef fo
marin [14]
You can solve this by using the system of equations.
Jan - 4.95 = 2H + 3C
Wayne - 5.45 = 3H + 2C

Use elimination.
-3(2H + 3C = 4.95)
2(3H + 2C = 5.45)

Solve. And you'll get:
-6H + (-9C) = -14.85
6H + 4C = 10.9

Cross out -6H and 6H because they cancel out. And you're left with:
-9C = -14.85
4C = 10.9

Add -9C with 4C, and -14.85 with 10.9.
-5C = -3.95

Divide each side with -5.
C = $0.79

Now to figure out what H is, just substitute the C in one of the equations with 0.79.
5.45 = 3H + 2(0.79)
5.45 = 3H + 1.58
-1.58            -1.58
3.87 = 3H
3.87/3 = 3/3(H)
1.29 = H

Finished!
7 0
4 years ago
Read 2 more answers
BRAINLIEST TO THE BEST ANSWER !!!!
TiliK225 [7]
Which equation am I looking at
4 0
3 years ago
X - (-20) = 5 _________________
tamaranim1 [39]

X - (-20) = 5

When you subtract a negative, change it to addition:

X + 20 = 5

Subtract 20 from both sides:

X = -15

8 0
3 years ago
Read 2 more answers
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