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Feliz [49]
3 years ago
7

At the fair, 2 corn dogs and 3 pretzels cost $13, and 5 corn dogs and 6 pretzels costs $28. How much

Mathematics
1 answer:
NemiM [27]3 years ago
5 0
Let x represent the cost of corn dogs. Let y represent the cost of pretzels.

2x+3y=13
5x+6y=28

Multiply the first equation by two so that we can eliminate y.

Subtract:
4x+6y=26
5x+6y=28

-x=-2
x=2

4(2)+6y=26
8+6y=26
6y=18
y=3

3 x 2 = 6
6+2=8

Therefore, 2 pretzels and a corn dog would cost $8.
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Sold 685 boxes of cookies about how many boxes are they sold rounded to the nearest ten
MissTica

Answer:

690

Step-by-step explanation:

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3 years ago
Simplify the expression by using a double-angle formula or a half-angle formula. (a) 2 tan(5°) 1 − tan2(5°)
antoniya [11.8K]

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Here we use double angle formula of tangent function which is

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\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}

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SO the required expression is equal to

\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}  =tan(2*5 )

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6 0
3 years ago
In mathematics, the distance between one point (a) and another point (b), each with coordinates (x,y), can be computed by taking
anygoal [31]
The formula to find the distance between points P_{1} and x_{2} is given as \sqrt{ ( y_{1}- y_{2})  ^{2}+ ( x_{1}- x_{2})  ^{2}  }, where

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8 0
3 years ago
Four points from a line are shown in the table below.
Dvinal [7]

Answer:

Correct choice is D. y=-x+3.

Step-by-step explanation:

pick any two points from the table say (0,3) and (1,2)

Now we we can use both points to find the equation of line.

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8 0
3 years ago
Find S (2x² -4/x² )dx<br><br>​
SOVA2 [1]

Answer:

if those functions under the radical are multiplied together they can be expanded as:

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let u=x1+x2 and v=x1-x2

I = (u ^ 2–1) * (1-v ^ 2)

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Step-by-step explanation:

this is the correct answer you want

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7 0
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