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lawyer [7]
3 years ago
14

Claire and two friends went out for cake and coffee. The total cost of the

Mathematics
1 answer:
insens350 [35]3 years ago
3 0

Answer:

$19

Step-by-step explanation:

If each person paid $9 , amount spent = $9 x 3

= $27 since they were three that went for the cake and coffee .

Given the total cost of the coffee was $8,

Cost of cake = $27 - $8

= $19

The total cost of the cake was $19

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Write the equation of a circle centered at the
Fudgin [204]

Answer:

(x+4)^2+(y+6)^2=100

Step-by-step explanation:

Given a circle centred at the point P(-4,-6) and passing through the point

R(2,2).

To find its equation, we follow these steps.

Step 1: Determine its radius, r using the distance formula

For point P(-4,-6) and R(2,2)

\text{Distance Formula=}\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\text{Radius=}\sqrt{(2-(-4))^2+(2-(-6))^2} \\=\sqrt{(2+4))^2+(2+6)^2}\\=\sqrt{6^2+8^2}\\=\sqrt{100}\\Radius=10

Step 2: Determine the equation

The general form of the equation of a circle passing through point (h,k) with a radius of r is given as: (x-h)^2+(y-k)^2=r^2

Centre,(h,k)=P(-4,-6)

r=10

Therefore, the equation of the circle is:

(x-(-4))^2+(y-(-6))^2=10^2\\\\(x+4)^2+(y+6)^2=100

3 0
3 years ago
Write an equation in slope intercept form (y=mx+b) for the graph below
mojhsa [17]

Answer:

y=-x+2

Step-by-step explanation:

Y intercept = 2

Slope = -1/1 = 1

y=-1x+2

Simplified

y=-x+2

4 0
3 years ago
The regular price of an aquarium is $70 and the sale price is $60. what is the percent of discount? (percent of change!!)
Naddik [55]
Let's take the difference between the old and new (70 - 60) to get 10 and then divide this by the old (70) amount...10/70 = .142857 convert to a percent by moving the decimal 2 spaces to the right...  14.29 %
3 0
3 years ago
a bookstore sells 7 books for $99.75 which table represents the relationship between number of books and total price?
WARRIOR [948]

Answer:

You did not provide the tables to choose from, but the relationship between number of books and total price is that each book is 14.25. Hope that helps at least.

7 0
2 years ago
Zander was given two functions: the one represented by the graph and the function f(x) = (x + 4)2. What can he conclude about th
baherus [9]

Answer:

On E2020 the answer is C

Step-by-step explanation:

They have the same y-intercept.

8 0
3 years ago
Read 2 more answers
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