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3 years ago

I NEED HELP SOMEONE PLZZZ HELP ME PLZZZZ

Mathematics

2 answers:

Lina20 [59]3 years ago

7 0

Answer:

Step-by-step explanation:

sukhopar [10]3 years ago

7 0

Answer:

h = √18 (4.24)

Step-by-step explanation:

Theorem = a² + b² = c²

√34 - 4² = a²

√34 - 16 = a

√34 - 16 = 18

√18 = 4.2426406871192851464050661726291 (Rounded to nearest hundreth: 4.24; nearest tenth: 4.2; nearest one: 4)

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3 years ago

Annie estimates that a bookcase is 78.25 inches .the actual height is 75.50 inches

UkoKoshka [18]

Percent error = (estimate - real)/(real) * 100

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3 years ago

In 14 days the daily high temperature in cedar hills dropped by 16.8 degrees Fahrenheit what is the average daily rate of change

Montano1993 [528]

Answer:

1.2°F

Step-by-step explanation:

Given that:

The drop in temperature in degree Fahrenheit over a period of 14 days = 16.8

The average daily rate of change in degwrr Fahrenheit ;

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= 16.8°F / 14

= 1.2°F

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2 years ago

Mr. K cooked down 2 pumpkins yesterday. He did this to make pumpkin pies for Thanksgiving. He was able get 30.5 cups of pumpkin.

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2 years ago

Max has 5.50. He has eight more quarters than he does nickels. He had four times as many dimes as he has nickels. How many quart

Oliga [24]

Answer:

<h2>There are 13 quarters, 5 nickels and 20 dimes.</h2>

Step-by-step explanation:

Givens

Max has $5.50.
He has eight more quarters than he does nickels.
He had four times as many dimes as he has nickels.

From these statements, we can deduce algebraical expressions to solve the problem. Let's call $q$ quarters, $n$ nickels and $d$ dimes.

$q=n+8$ (8 more quarters than nickels)

$d=4n$ (he has four times as many dimes as he has nickels).

$0.25q+0.05n+0.10d=5.50$ (Max has a total of $5.50, one quartes is $0.25, one nickel is $0.05 and one dime is $0.10).

Let's replace the first two expressions into the third equation

$0.25(n+8)+0.05n+0.10(4n)=5.50\\0.25n+2+0.05n+0.40n=5.50\\0.70n=5.50-2\\n=\frac{3.50}{0.70}\\ n=5$

There are 5 nickels.

Now, we use this value to find the number of quarters

$q=5+8=13$

There are 13 quarters.

Also, $d=4(5)=20$

There are 20 dimes.

Therefore, there are 13 quarters, 5 nickels and 20 dimes.

3 0

3 years ago