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OLEGan [10]
3 years ago
14

After 1 year, the value of a car decreases by 19%. The car is now worth £3078. What was the value of the car originally?​

Mathematics
1 answer:
Paha777 [63]3 years ago
5 0

Answer:

3800

Step-by-step explanation:

Variables:

O - Original cost

N - New cost

c - change factor

Step 1:

Recognize that if something decreases by 19%, it is worth 19% <em>less</em>

This means that the new price, fractionally, is 100% - 19% = 81%

So we can use c as 0.81 (81/100)

Step 2:

Write an equation to represent what is happening

N = O * c

Step 3:

Sub in what we know

3078 = O * 0.81

Step 4:

Rearange and solve

O = 3078 / 0.81 = 3800

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If B is a point AC and AB:BC = 1:2, what are the coordinates of B?
vitfil [10]

Answer:

B(x, y) = (-2, -2)

Step-by-step explanation:

Given: AB: AC (m₁: m₂) = 1 : 2, A (x₁, y₁) = (-5, 2) and B(x₂, y₂) = (4, -10)

To find: Coordinates of B (x, y)

Using section formula:

Therefore Coordinates of B (x, y) is (-2, -2).

Step-by-step explanation:

4 0
2 years ago
Mario's charges $4 for 65 ounces of soda and Mike's charges $2.50 for 34 ounces of soda.Jayda only has $3 and wants to get as mu
Greeley [361]

Jayda can get 7.95 ounces more soda if she buys soda from Mario.

Step-by-step explanation:

Mario charges,

Quantity for $4 = 65 ounces

Quantity for $1 = \frac{65}{4}\ ounces

Quantity for $3= \frac{65}{4}*3 = \frac{195}{4}

Quantity for $3 = 48.75 ounces

Mike charges,

Quantity for $2.50 = 34 ounces

Quantity for $1 = \frac{34}{2.50}\ ounces

Quantity for $3= \frac{34}{2.50}*3 = \frac{102}{2.50}

Quantity for $3 = 40.80 ounces

More soda Jayda will get = 48.75 - 40.80 = 7.95 ounces.

Jayda can get 7.95 ounces more soda if she buys soda from Mario.

Keywords: Division, subtraction

Learn more about division at:

  • brainly.com/question/4354581
  • brainly.com/question/4361464

#LearnwithBrainly

3 0
3 years ago
What is the area of the figure below?<br><br> A. 31.5 m<br> B. 63 m<br> C. 84 m<br> D. 126 m
lapo4ka [179]
Hi! For the area of a parallelogram, we just need to multiply the base and the height. It may sound simple but the tricky part in this problem is determining which one is the height.

For a parallelogram, the height is defined as the measurement PERPENDICULAR to the base. Therefore, for this problem, we need to multiply 14 and 4.5 instead of 14 and 6.

14*4.5=63

ANSWER: B. 63 square meters.
6 0
3 years ago
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Simplify. 3(x + 4) please
Sveta_85 [38]

Answer:

3 x + 12

Step-by-step explanation:

6 0
3 years ago
Which graph represents the piecewise-defined function?
kifflom [539]

Answer: The first option is correct.

Explanation:

The given piecewise function is,

y=\begin{cases}-\frac{4}{5}x-3 & \text{ if } x

From the piecewise function we can say that if x<0, then

f(x)=-\frac{4}{5}x-3

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f(x)=3x-10

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In the graph 2, 3 and 4 for each value of x there exist a unique value of y, therefore the function is defined for all values of x, which is not true according to the given piecewise function.

Only in figure the value of y not exist when x lies between 0 to 2, including 0. It means the function is not defined for 0\leq x, hence the first option is correct.

5 0
3 years ago
Read 2 more answers
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