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Mathematics

1 answer:

gayaneshka [121]2 years ago

5 0

Answer:

work is shown and pictured

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If p:q = 5;2 and q:r = 3:4, what is the ratio of p to r?

igor_vitrenko [27]

5:4 since p is equal to 5 and r is equal to 4

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2 years ago

CAN SOMEONE HELP ME WITH THIS A 20-foot ladder is leaning against a wall of a house. It is set 16 feet from the base of the wall

MatroZZZ [7]

We're given the hypotenuse and one side and we're looking for the missing side so use pythagorean.

20² - 16² = 144²

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2 years ago

Read 2 more answers

3 1/2 - 4 2/5<br> how do i do this?

Nadusha1986 [10]

Answer:

Ok so first you would have to turn them into improper fractions which is

3 $\frac{1}{2\\}$ = $\frac{7}{2}$ and 4 $\frac{2}{5}$ = $\frac{22}{5}$

So now that you have made them both improper fractions you have to find common denominators.

To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take $\frac{22}{5}$ and mutiply both numbers by 2 and get $\frac{44}{10}$ . Then mutiply both numbers in $\frac{7}{2}$ by 5 to get a common denominator.