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Allisa [31]
4 years ago
14

Malorie can work 10 math problems in 3 minutes. At this rate, how many problems can she work in one hour?

Mathematics
1 answer:
lisov135 [29]4 years ago
4 0
D
If you multiply 3 by 10 and add a zero onto the ten in the question that is 100 in half an hour, all you need to do then is multiply that answer by two to get your answer.
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Firefighters need to use a 60-foot ladder to save a child. She is 50 feet above street
mr_godi [17]

Answer:

The ladder must be placed at a distance of 33.2 feet from the bottom of the building

Step-by-step explanation:

From what we have here, we are looking at a right angled triangle with the hypotenuse which is the length of the ladder

The height of the child is 50 feet from ground level

So we need to get the third side of the triangle

We can get this by considering the use of Pythagoras’ theorem

This will give us the length of the third side of the triangle

From Pythagoras’ the square of the hypotenuse is equal the sum of the squares of the two other sides

Let the unknown side be x

Thus;

60^2 = 50^2 + x^2

x^2 = 60^2 - 50^2

x^2 = (60-50)(60+50)

x^2 = (10)(110)

x^2 = 1100

x = square root of 1100

x = 33.166

To the nearest tenth, this is 33.2 feet

3 0
3 years ago
In 1998 your house cost 82,400 in 2000 your house was vauled at 102,650 how much did the value of your home increase
Anastasy [175]
102,650-82,400=20,250. The value of the home increased by $20,250. 
3 0
3 years ago
Write an expression containing three terms that is in simplest form. One of the terms should be a constant.
sasho [114]
I believe that expression would be in the form
 ax²+bx +c where, c is the constant term
For example; in the expression;
 2x²+3x²+7 , 7 is the constant term.

8 0
4 years ago
9. Calculate the median 5, 10, 12, 4, 6, 11, 13, 5
kiruha [24]

Answer:

8.

Step-by-step explanation:

5, 10, 12, 4, 6, 11, 13, 5

Arrange in ascending order:

4, 5, 5, 6, 10, 11, 12, 13.

The median is the mean of the 2 middle numbers:

= (6 + 10) / 2

= 8.

5 0
4 years ago
Simplify. −2i ⋅ (−3i)  
xeze [42]
-2i * -3i
6i
6i^2
6 * -1
-6

Answer: C) -6 or the third option.
3 0
3 years ago
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