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Neko [114]
2 years ago
7

Please solve quickly ​

Mathematics
1 answer:
Bumek [7]2 years ago
6 0

Answer:

x=12

Step-by-step explanation:

AB/FE=BC/EC

x/6= 5+5/5

x/6=10/5

x=6(2)

x=12

~

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Is 2.346982105 an irracional number?
natima [27]

Answer:

Step-by-step explanation:

Yes. because In mathematics, the irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers

3 0
3 years ago
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This system has one solution.
mr_godi [17]

Answer: It is 2.

Step-by-step explanation:

Make both equation equal to each other and solve for x, as following:

- Add like terms.

- Factor the equation.

8x-14=x^{2}+4x-10\\x^{2}+4x-10-8x+14=0\\x^2-4x+4=0\\(x-2)(x-2)=0\\(x-2)^2=0\\x=2

Substitute the value of x obtained into any of the original equations to obtain the y-coordinate.

Then, this is:

y=8(2)-14\\y=16-14\\y=2

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3 years ago
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A piano teacher has 4 1/2 hours available to teach in a night. Each lesson will last 1 1/2 hours. How many lessons can the teach
Radda [10]

change the mixed numbers into improper fractions

4 1/2 = (2*4 +1)/2= 9/2

1 1/2 = (2*1+1)/2 = 3/2

9/2 divided by 3/2

9/2 * 2/3 = 18/6 =3

She can schedule 3 lessons per night


8 0
4 years ago
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PLS HELP ASAP :DDDDDDDDDDDDDDDDDDD
gulaghasi [49]
Pythagoras in HBC : HC=\sqrt{HB^2-BC^2}=\sqrt{20^2-12^2}=16in

Pythagoras in HDC : HD=\sqrt{HC^2-CD^2}=\sqrt{16^2-14^2}\approx\boxed{7.7 in}
6 0
4 years ago
Mika earns $25 for every 3 hrs of work. Calder earns $15 for every 2 hrs of work. If Calder works long enough to earn the same a
asambeis [7]
Calder would have to work 10 hours to equal the same amount Mika has from 9 hours of work

Here's how:
Since Mika works 9 hours and she gets 25 per 3 hours, to get her amount for 9 hours, you times 25 by 3 which is 75

Now you need to set up a equation
To make it easier. you can divide 15 by 2, which is 7.5, to get a unit rate
After that you can set up your equation
7.5x=75
x=10
Hope this helps:)
6 0
3 years ago
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