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3 years ago

The bill for dinner is $31.85. There is 8% sales tax and you leave a 15% tip. What is the total cost of your dinner?

Mathematics

1 answer:

zmey [24]3 years ago

7 0

Answer:

39.18$

Step-by-step explanation: 8 percent of 31.85 is 2.548 and 15 percent of 31.85 is 4.775. 4.775 + 2.548 + 31.85 is equal to 39.1755. you can only have 2 number after the decimal point because youre using money so you would round from the 100ths which would equal a total of 39.18! BOOM!

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Type the correct answer in each box.

Mariulka [41]

Answer:

$(x-5)^2+(y+4)^2=100$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance between the center and any point that lie on the circle is equal to the radius

we have the points

(5,-4) and (-3,2)

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

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

substitute the values

$r=\sqrt{(2+4)^{2}+(-3-5)^{2}}$

$r=\sqrt{(6)^{2}+(-8)^{2}}$

$r=\sqrt{100}\ units$

$r=10\ units$

step 2

Find the equation of the circle

we know that

The equation of a circle in standard form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(5,-4)\\r=10\ units$

substitute

$(x-5)^2+(y+4)^2=10^2$

$(x-5)^2+(y+4)^2=100$

6 0

3 years ago

Plz help me!! Will give brainliest to who ever gets it right! Thanks

GarryVolchara [31]

Answer:

5. 57 9. 63

Step-by-step explanation:

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6 0

2 years ago

Read 2 more answers

Complete the solution of the equation find the value of y when x equals 2. -8x - 5y = -1

tatuchka [14]

Answer: y = -3

Step-by-step explanation:

-8x - 5y = -1

+8x +8x

-5y = 8x - 1

÷-5 ÷-5 ÷-5

y = $-\frac{8}{5}x + \frac{1}{5}$

y(2) = $-\frac{8}{5}(2) + \frac{1}{5}$

= $-\frac{16}{5} + \frac{1}{5}$

= $-\frac{15}{5}$

= -3

6 0

4 years ago

What is this in standard form ? Please !

Alexxandr [17]

Answer:

-6x + -36 = y + 4

-6x -y = 4 + 36

A. 6x + y = - 40

5 0

3 years ago

Read 2 more answers

Gabriele's Pie Shop sold 80 pies last month: 7/10 were apple pies and 1/10 were peach pies. How many pies were neither apple nor

AleksAgata [21]

Answer:

16 pies were neither apple nor peach.

Step-by-step explanation:

8/10, or 4/5 of the 80 apple pies were either apple or peach, which 4/5 of 80 is 64. The remaining pies will be neither apple nor peach. 80 - 64 = 16.

7 0

3 years ago