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KengaRu [80]
3 years ago
11

A lamp is on sale and it's price is reduced from $80 to $50. what is the percentage decrease?

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
Percentage change =Final value -Initial value / initial value * 100\
= 50 - 80 / 80 * 100
= -30/80 * 100
= -3/8 * 100
= -300/8
= -37.5%

In short, Your Answer would be -37.5%

Hope this helps!
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Answer:

280 mangoes

Step-by-step explanation:

sum the parts of the ratio, 7 + 11 = 18 parts

Divide the total by 18 to find the value of one part of the ratio.

720 ÷ 18 = 40 ← value of 1 part of the ratio , then

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2 years ago
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Please help and answer the question properly.
RUDIKE [14]

Answer:

x = 15.65 and y = 5√2

Step-by-step explanation:

To get x and y we will use the Pythagoras theorem as shown

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Similarly for y;

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sattari [20]
Step 1.) Multiply both sides of the equation by -6

step 2.) Sum the equations vertically to eliminate at least one variable

step 3.) Divide both sides of the equation by

step 4.) Substitute the given value of into the equation x - 2y = 10

step 5.) Solve the equation for x

step 6.) The possible solution of the system is the ordered pair (x , y)

step 7.) Check if the given ordered pair is the solution of the system of equations

step 8.) Simplify the equalities

step 9.) Since all of the equalities are true, the ordered pair is the solution of the system


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Step-by-step explanation:

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