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3 years ago

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Mathematics

1 answer:

xxTIMURxx [149]3 years ago

6 0

Answer:

--15

Step-by-step explanation:

First do the bracket

anything inside () and squared (or even numbers) will become positive

so 1- (16)

1-16=-15

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You and your family went to Texas Roadhouse for dinner. Your check was $89.25. If you left the waitstaff 20%, how much was your

Anastaziya [24]

Answer:

the answer is 107.4

More info

20 percent off

You will pay $71.4 for a item with original price of $89.25 when discounted 20%. In this example, if you buy an item at $89.25 with 20% discount, you will pay 89.25 - 17.85 = 71.4 dollars.

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Step-by-step explanation:

6 0

3 years ago

A lemonade stand sells drinks in two sizes, small and medium. In the span of 1 hour, the stand sold 72 drinks. The ratio of smal

Mashutka [201]

Answer:

The total amount of money received at the lemonade stand was $49.50

Step-by-step explanation:

Let

x ---> the number of small drinks sold

y ---> the number of medium drinks sold

we know that

The stand sold 72 drinks

$x+y=72$ ----> equation A

The ratio of small drinks to medium drinks sold was 5:3

$\frac{x}{y}=\frac{5}{3}$

$x=\frac{5}{3}y$ ----> equation B

substitute equation B in equation A

$\frac{5}{3}y+y=72$

$\frac{8}{3}y=72\\\\y=72(3)/8\\\\y=27$

Find the value of x

$x=\frac{5}{3}(27)=45$

Find out the total amount of money received at the lemonade stand

$0.50(45)+1.00(27)=\$49.50$

3 0

3 years ago

Find the distance between the origin and the point R = (9,7,8). The distance is: Ensure that you use at least 4 decimal place ac

gregori [183]

Answer:

The distance between the origin and the given point is 13.9283 units.

Step-by-step explanation:

The coordinates of origin are (0,0,0)

We are given a point R(9,7,80

The distance formula:

$\sqrt{(y_1 -x_1)^2 + (y_2 -x_2)^2 + (y_3 -x_3)^2}$ , where $(x_1, x_2, x_3)$ are coordinates of one point and $(y_1, y_2, y_3)$ are coordinates of other point.