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Alborosie
2 years ago
9

What is the geometric mean of 8 and 13

Mathematics
1 answer:
GaryK [48]2 years ago
5 0

Answer:

13 ? hiiiiiiiiiiiiijjjjjjjjjjjjjjjjjkuuuu

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Y/18 = 6/9<br><br> solve for Y with explanation
Anettt [7]
The answer to your question is Y=12
3 0
3 years ago
If r=5(12,80) what the given radius and center
Mashutka [201]
I thik the answer is 64
6 0
3 years ago
7k - 3k + 11, can somebody please help me out?
Mademuasel [1]

Answer:

4k+11=4011

Step-by-step explanation:

7k - 3k=4k

4k+11=4011

7 0
3 years ago
A square and a rectangle have equal area.The rectangle is 64 cm by 81 cm. What is the perimeter of the square?
Fittoniya [83]

Answer:

2592 cm

Step-by-step explanation:

square area = x²

rectangle area = bh

so

x² = bh

since the areas are equal

b and h are in the problem as 64 and 81

x² = 64x81

x² = 5184

divide by 2

x = 2592 cm

6 0
3 years ago
Veronica has been saving dimes and quarters she has 110 coins in all and the total value is 18.50 how many dimes and quarters do
Lady_Fox [76]

This problem can be solved by the chicken rabbits method or you can just do simple algebra.

I.) Chicken and rabbits method

First assume all 110 coins are dimes and none are quarters.

We will have a total value of 11 dollars

Now for each dime we switch out for a quarter, we adds 15 cents to the total value.

18.50-11=7.50 dollars

There are 750/15=50 group of 15 cents in the 7 dollars and 50 cents.

This also meant that we need to switch out 50 dimes for 50 quarters.

So we have 50 quarters.

That first method is very good and very quick once you get the hang of it, now I'm going to show you the algebraic way to solve this.

Let's say there are x dimes and y quarters.

Set up equation

x+y=110

10x+25y=1850

Now solve multiply first equation by 10

10x+10y=1100

subtract

15y=750

y=50

Now we set the numbers of quarters to y so the answer is 50 quarters.

I personally recommend using algebra whenever you can because the practice is very important and you will eventually get really fast at setting up and solving equations. The first method is faster in this case but the second is more generalize, hope it helps.

6 0
3 years ago
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