Watch help video David owns a food truc itsells tacos and burritos. He sells each taco for $4.50 and
each burrito for $7.75. Yusurday David made a total of $519.25 in revenue from all
taco and burrito sales and the vere twice as many tacos sold as there were burritos
sold. Write a system of equation that could be used to determine the number of
tacos sold and the number of burritos sold. Define the variables that you use to write
the system.
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7:30 PM
3/14/2021
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Step-by-step explanation:

let tacos be x and burritos be y

4.5x+7.75y = 519.25

It says there were twice as many tacos sold as there were burritos sold

Therefore, y = 2x

Substituting this in the above equation: 4.5x + 7.75*2x = 519.25

4.5x+15.5x = 519.25

x = 519.25/20

x = 25.9625

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

9) i can't see the angle so whatever it is just do this: cos(angle) x hypotenuse and then use that answer and they hypotenuse and plug it into this: (answer you just got)^2 + b^2 = (hypotenuse)^2. the first answer will be the answer of the adjacent side and the second answer after this equation will be the opposite side.

10) y = 14 x = √147 or 12.12435565

11) x = 4.8

12) x = 4.2

13) x = 9.3

14) pq: 13.2

qr : 17.6

angle p: 53º

15) angle c: 54.3º

angle a: 35.7º

16) h = 21040

v = 1841

step-by-step explanation:

10) 7/sin(30) = 14 = y

7^2 + b^2 = 14^2

49 + b^2 = 196

b^2 = 196 - 49

√b^2 = √147

x = √147

11) cos(70) x 14 = 4.788282007

x = 4.8

12) tan(25) x 9 = 4.196768923

x = 4.2

13) sin(31) x 18 = 9.270685348

x = 9.3

14) pq: sin(37) x 22 = 13.23993051

pq: 13.2

qr: cos(37) x 22 = 17.56998122

qr : 17.6

angle p: 180 - (37 + 90) = 53º

15) cos-1(7/12) = 54.31466529

angle c: 54.3º

angle a: 180 - (90 + 54.31466529) = 35.68533471

angle a: 35.7º

16) 4 x 5280 = 21120

cos(5) x 21120

h = 21039.63202

h = 21040

sin(5) x 21120

v = 1840.729287

v = 1841