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DerKrebs [107]
3 years ago
15

Ed has some money. He spends £7.50 on a shirt and now has one-third of what he started with.

Mathematics
1 answer:
svlad2 [7]3 years ago
7 0

Answer:

x- 7.50 i think i hope i helped

Step-by-step explanation: there no explanation

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Find the x- and y-intercepts of the line that passes through ( 3, -8) and ( -4, 13).
Ivenika [448]

Answer:

x-intercept = 1/3, y-intercept = 1

Step-by-step explanation:

y = mx + b (general equation where m=gradient, b=constant)

-8 = 3m + b (from first pair of coordinates)

13 = -4m + b (from second pair of coordinates)

3m + b - (-4m + b) = -8 - 13

7m = -21

m = -3

Using one of the linear equations above:

-8 = 3(-3) + b

-8 = -9 + b

b = 1

Therefore, the linear equation is: y = -3x + 1

To find x-intercept:

Let y = 0

0 = -3x + 1

-1 = -3x

x = 1/3

To find y-intercept:

Let x = 0

y = -3(0) + 1

y = 1

Therefore the x-intercept = 1/3 and y-intercept = 1 for the line that passes through (3, -8) and (-4, 13)

5 0
2 years ago
Complete the solution of the equation. Find the value of y when x equals 15.
Mariulka [41]

Answer:

y = -6   PLEASE GIVE BRAINLIEST

Step-by-step explanation:

-15 - 9y = 39

               39 + 15 = 54

-9y =54

y = 54 ÷ -9 = -6

y = -6

8 0
2 years ago
An angle is 4 times as great as it's supplement. Find the measure of the supplement of the angle
FromTheMoon [43]
It is 40 and 160. (:
3 0
3 years ago
A circular plate has circumference 21.4 inches. What is the area of this​ plate? Use 3.14 for pi. The area of this plate is abou
kolezko [41]

Answer: Area of circular plate is 36.5 square inches

Step-by-step explanation:

The formula for determining the circumference of a circle is expressed as

Circumference = 2πr

Where

r represents the radius of the circle.

π is a constant whose value is 3.14

From the information given,

Circumference of circular plate = 21.4 inches. Therefore

2 × 3.14 × r = 21.4

6.28r = 21.4

r = 21.4/6.28

r = 3.41 inches

The formula for determining the area of a circle is expressed as

Area = πr²

Area of circular plate = 3.14 × 3.41² = 36.5 square inches

8 0
3 years ago
I need help please.
pishuonlain [190]

Distributive property means that you have to multiply everything directly outside the parent hes to everything inside the parentheses. For this problem multiply 7 to the 9x and to the -9 like so:

7(9x) + 7(-9)

63x + (-63)

63x - 63

Look at image below if you are still confused

Hope this helped!

7 0
3 years ago
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