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3 years ago

Work out the percentage change to 2 decimal places when a price of £78.98 is increased to £100

Mathematics

1 answer:

Levart [38]3 years ago

4 0

Answer:

The percentage is 26.6%

Step-by-step explanation:

Here, we want to

work

out the percentage change

To do this, we use the percentage change formula

This is,

percentage change = new value-old value)/old value * 100%

= (100-78.98)/78.98 * 100%

21.02/78.98 * 100% = 26.6%

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There is a mound of g pounds of gravel in a quarry. Throughout the day, 300 pounds of gravel are added to the mound. Two orders

galina1969 [7]

Answer:

$g+300-700-700=1500, g=2600$

Step-by-step explanation:

At the start of the day there are g pounds of gravel in the quarry.

Then it says that there were 300 pounds added to the mound, so at this point the pounds of gravel in the mound are now g+300.

Then two orders of 700 pounds are sold and removed from the mound. That means they removed 700 pounds from the mound 2 times. Therefore at this point the pounds of gravel in the mound are now g+300-700-700.

Then it says that at this point, the amount of pounds in the mound are 1500. Hence we get

$g+300-700-700=1500$

To solve for g we just add 700 two times to both sides of the equation, and subtract 300 from both sides of the equation, getting:

$g+300-700-700+700+700-300=1500+700+700-300$

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3 years ago

Suppose that 70% of all Americans agree that a candidate is not trustworthy. A survey finds the 116 out of 200 agree that a cand

MArishka [77]

Answer:

Prob = 0.00009 = 0.009% , Less Likely

Step-by-step explanation:

Using Binomial Distribution, Prob = N c r . ( P )^ r . ( Q ) ^ (n -r) .

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Less probability means Less Likely

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2 years ago

Simplify sin q + cosq cotq.

IRINA_888 [86]

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3 years ago

Is 8 a solution to 1/2x+9=13?

Viktor [21]

Answer:

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Step-by-step explanation:

solve for x by simplifying both sides of the equation, then isolating the variable.

x = 8

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3 years ago

Work out the percentage change to 2 decimal places when a price of £78.98 is increased to £100￼

Work out the percentage change to 2 decimal places when a price of £78.98 is increased to £100