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3 years ago

Last year Craig had 4 records in his collection. Now he has 7 records what is the percent increase of his collection

Mathematics

1 answer:

Jobisdone [24]3 years ago

6 0

75% I believe
Step-by-step explanation:
A 100% increase would be 8 so adding one would be a 25% increase. since 3 were

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A class had 11 boys and 9 girls in it. What percent of the class are boys?

scZoUnD [109]

11 divided by 20 = .55

multiply that by 100

55% is your answer

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3 years ago

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Then work backward to find the cost of 2 dvds

Marizza181 [45]

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3 years ago

A and B are two points on square ABCD with coordinates A(1,3) and B(5,3). What are the lengths of the diagonals AC and BD? Round

lilavasa [31]

Answer:

$AC = BD = 5.7$

Step-by-step explanation:

Given

$A = (1,3)$

$B = (5,3)$

Required

The length of the diagonals

First, calculate the length of AB using:

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}$

So, we have:

$AB = \sqrt{(1 - 5)^2 + (3 - 3)^2}$

$AB = \sqrt{(-4)^2 + 0^2}$

$AB = \sqrt{16}$

$AB = 4$

The diagonal of a square is calculated using:

$Diagonal = x\sqrt{2$

Where x is the length of each side.

So:

$AC = BD = AB\sqrt{2}$

$AC = BD = 4\sqrt{2}$

$AC = BD = 5.7$ -- approximated

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3 years ago

How does slope relate to the equation for a proportional relationship?

Sindrei [870]

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3 years ago

mr.rai sells a watch set for rs2,035 at 10% profit . how much money has he paid to buy the watch also find profit amount

Anna007 [38]

Answer:

paid to buy = 1850

profit = 10%

Step-by-step explanation:

2035 = 110%

1% ~ = 18.5

100% = 1850

2035 - 1850 = 185

185 / 1850 * 100 = 10% profit

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3 years ago