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3 years ago

3. A waitress earns 15% in gratuity on the total price of her customer's meals. She also

Mathematics

1 answer:

Andrews [41]3 years ago

7 0

first you find 15% of $200

15/100×200=$30

then you find the total money she earned for the hours she worked

4×5=$20

then you add the amounts

$20+$30=$50

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Does someone know the answer to this √7x+16+4=x

dalvyx [7]

I think it is 54.332

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3 years ago

A triangle is graphed in the coordinate plane. The vertices of the triangle have coordinates (–3, 1), (1, 1), and (1, –2). What

vladimir2022 [97]

Answer:

The perimeter of the triangle is $12\ units$

Step-by-step explanation:

Let

$A(-3,1),B(1,1),C(1,-2)$

we know that

The perimeter of triangle is equal to

$P=AB+BC+AC$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance AB

$A(-3,1),B(1,1)$

substitute in the formula

$AB=\sqrt{(1-1)^{2}+(1+3)^{2}}$

$AB=\sqrt{(0)^{2}+(4)^{2}}$

$AB=4\ units$

step 2

Find the distance BC

$B(1,1),C(1,-2)$

substitute in the formula

$BC=\sqrt{(-2-1)^{2}+(1-1)^{2}}$

$BC=\sqrt{(-3)^{2}+(0)^{2}}$

$BC=3\ units$

step 3

Find the distance AC

$A(-3,1),C(1,-2)$

substitute in the formula

$AC=\sqrt{(-2-1)^{2}+(1+3)^{2}}$

$AC=\sqrt{(-3)^{2}+(4)^{2}}$

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step 4

Find the perimeter

$P=AB+BC+AC$

substitute the values

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6 0

3 years ago

The last customer of the day calls telling you they purchased 96 meters of fencing to fence in a

Lilit [14]

Answer:

Area = 733 m² (to the nearest meter)

Step-by-step explanation:

Formulae

Circumference of a circle = 2 $\pi$ r
Area of a circle = $\pi$ r²

(where r is the radius of the circle)

Find the radius

circumference = 96 m

Using the circumference of a circle formula:

⇒ 2 $\pi$ r = 96

⇒ $\pi$ r = 96 ÷ 2 = 48

⇒ r = 48 ÷ $\pi$ = 48/ $\pi$

Find the area

radius r = 48/ $\pi$

Using the area of a circle formula:

⇒ A = $\pi$ r²

⇒ A = $\pi$ (48/ $\pi$ )²

⇒ A = 2304/ $\pi$

⇒ A = 733.3859778...

⇒ A = 733 m² (to the nearest meter)

6 0

3 years ago

What is the gcf of 25 and 90

Yuliya22 [10]

25 = 5^2
90 = 2 . 3 . 3 . 5

GCF is not as greedy as LCM.
GCF is just on a diet, so it takes the same number and the smallest amount.

25 and 90 both have 5.
5^2 or 5 ?
Take the smaller one.
GCF = 5

3 0

3 years ago

How does 5x + 15 = 45 HELP PLZ

likoan [24]

Answer:

When finding these problems we always have to do the opposite of the operation shown.

In this case its:

5x + 15 = 45

Subtract 15 from both sides (we start off with constants and numbers that are being shown) The reason why its subtraction is because since your adding 15 to 5x the opposite of that is subtraction so use the number shown by itself and subtract it from both sides.

5x = 30

Divide by 5 on both sides since the opposite of 5x is division (only use the number that is shown) We have to get rid of all the numbers on the left.

therefore you'll be left with:

X = 6

6 0

3 years ago

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