Answer:
x = 5, y = -1/2
Step-by-step explanation:
3.5x - 5y = 20
3x + 4y = 13 multiply by 1.25 so the y's match up (you could match x's too)
3.75x + 5y = 16.25
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3.5x - 5y = 20
3.75x +5y = 16.25
7.25x + 0y = 36.25 you can add or subtract here (on this equation you add)
7.25x=36.25
x=5 So now we have x=5 and to find y we can just plug in x into one of the equations
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3(5) + 4y = 13
15 + 4y = 13
4y = -2
y = -1/2
x = 5, y = -1/2
Then you can plug in both to check your answers.
Answer:
1,455 feet
Step-by-step explanation:
Step 1:
1 : 75 Ratio Inches to Feet
Step 2:
1 : 75 = 19.4 : x Equation
Answer:
x = 1,455 Multiply
Hope This Helps :)
Answer:
f(x)=750-15t
Step-by-step explanation:
He starts off at 750 meters, and he decends 15 meters psr minute
2^2(-9 + 4)
First step: solve the brackets.
2^2(-5)
Second step: solve the exponent.
4(-5)
Final step: multiply.
-20
PS: Could you please mark as brainliest? Thanks!
Answer:
Step-by-step explanation:
43
