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4 years ago

6

craig went out to a restaurant for dinner. he tipped 16% of his bill, which brought the sum of the dinner bill plus the tip to $

26.10. how much was the original bill?

1 answer:

olga nikolaevna [1]4 years ago

5 0

The total cost was 116% of the original bill;
Original bill was;
$\frac{100}{116} *26.10$
= <span>$22.5</span>

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Factor 8x^2-27 show all steps

Olenka [21]

Solutions

Factor <span>8x</span>²<span>−27

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3 years ago

4. Solve the following equations and verify your answers: (i) 3 (x + 7) = 18

stiv31 [10]

Answer:

8.33333333333

Step-by-step explanation:

Solution for 3x-7=18 equation:

3x - 7 = 18

3x = 18 + 7

3x = 25 (divide both sides by 3 to get x)

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3 years ago

What is the y-coordinate of the solution for the system of equations? x−y=−11 y+7=−2x

ICE Princess25 [194]

Answer:

$y= 5$

Step-by-step explanation:

Given the system of equations:

$x-y=-11$

$y+7=-2x$

In order to find the y coordinate of the solution we must first find the solution to this system of equations. We first start by solving one of the given equations and then substitute the answer of that into the second equation and further solve to get the final answers.

$x=y=-11$

$y+7=-2x$

$y+7=-2x$

$+ -7$

$y = -2x - 7$

$x - y = -11$

$y = -2x-7$

$x-(-2x-7)=-11$

$x--2x=x+2x=3x$

$3x+7=-11$

$-7$

$-11+-7=-18$

$3x=-18$

$\div3$

$-18\div3=-6$

$x=-6$

$y=-2x-7$

$y=(-2)(-6)-7$

$-2\times-6=12-7=5$

$y=5$

Hope this helps.

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2 years ago

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harina [27]

Answer:

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Step-by-step explanation:

Because he starts off with 10 dollars, and x is the amount he spends on an item, y is showing the change that he would get from paying with a 10 dollar bill, so it's what's left over from that 10 dollars.

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3 years ago

Given sec θ = -2/4, find tan θ. Please explain with the Pythagorean theorem.

STALIN [3.7K]

Answer:

Root 3

Step-by-step explanation:

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3 years ago