3 years ago

A stereo is marked down $105. if this is a 25% decrease, find the cost price?

Mathematics

1 answer:

Aneli [31]3 years ago

3 0

Answer:420$
Solution: 105•4= 420$
25%= 1/4 therefore we can find the original price by multiplying the decrease with 4

You might be interested in

Find the gradient of the line Joining the points p(-2,6) and Q(3,-2)

Rudiy27

Answer:

$- \frac{8}{5}$

Step-by-step explanation:

$\boxed{gradient = \frac{y1 - y2}{x1 - x2} }$

(x₁, y₁) is the 1st coordinate while (x₂, y₂) is the 2nd coordinate.

Gradient of the line

$= \frac{6 - ( - 2)}{ - 2 - 3}$

$= \frac{6 + 2}{ - 5}$

$= - \frac{8}{5}$

7 0

3 years ago

Sorry to the people who were helping me earlier, but I actually don't get this one. I really need help if anyone could help with

Fed [463]

7/12
12/7
1`2/7
7/12

a reciprocal you just flip the fraction

5 0

3 years ago

Read 2 more answers

6(33 - w) = 90 solve for w entre your answer in the box w =

aliina [53]

Answer:

w = 18

Step-by-step explanation:

6(33 - w) = 90

33 - w = 15

-w = -18

w = 18

5 0

2 years ago

Add and simplify 1/8 5/8

skelet666 [1.2K]

1+5=6 so 6/8

Simplifying 6/8 is 3/4

8 0

3 years ago

Read 2 more answers

Write an equivalent expression for 4(3a+7)+3 (2a+5) if a=5, is the the solution to both expressions the same

Levart [38]

<span>Alternative</span>
4(3*5+7)+3(2*5+5)=
4(22)+3(15)=
(4*22)+(3*15)=
88+45=133

4 0

3 years ago

Read 2 more answers