Answer:
The cost of 1 taco = $4
The cost of 1 quesadilla = $7.50
Step-by-step explanation:
Let the cost of tacos be x and the cost of quesadillas be y.
<h3><u>Given condition:</u></h3>
x + 3y = 26.50 ------------------(1)
3x + y = 19.50 -------------------(2)
Multiply Eq. (2) by 3
3(3x + y) = 19.50 * 3
9x + 3y = 58.5 -----------------(3)
Subtract Eq. (3) from (1)
x + 3y - 9x - 3y = 26.50 - 58.50
x - 9x = -32
-8x = -32
8x = 32
Divide 8 to both sides
x = $4
Put x = 4 in (1)
4 + 3y = 26.50
Subtract 4 to both sides
3y = 26.50 - 4
3y = 22.50
Divide 3 to both sides
y = $7.50
So,
The cost of 1 taco = $4
The cost of 1 quesadilla = $7.50
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Answer:
la a
Step-by-step explanation:
espero que te sirva
Hello from MrBillDoesMath!
Answer:
#1. Choice a, m = -3
#2 Choice b, 292+13m
Discussion:
#1:
(mx+8) (2x-4) = 2 m x^2 - 4 m x + 16 x - 32
= m(2x^2) + x( -4m+16) -32
If this expressions equals
= -6x^2 + 28x - 32
then 2m = -6 and -4m+16 = 28, which gives m = -3. That is Choice A.
#2
Choice b:
a(n) = 292 + 13n , n > = 1
a(1) = 292 + 13(1) = 305
a(2) = 292 + 13(2) = 292 + 26 = 318
a(3) = 292 + 13(3) = 292 + 39 = 331
a(4) = 292 + 4(13) = 292 + 52 = 344
The sequence a(n) values match those given in the Question.
Thank you,
MrB
Answer:
28 4/9oz.
Step-by-step explanation:
I'd convert this to ounces. A gallon is 128oz.
2x128=256
Now, divide by 9.
256/9≈28.44oz., or 28 4/9 oz.
Answer:
x=-7 and y=-2
Step-by-step explanation:
hope this helps
