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Artemon [7]
3 years ago
6

What is 18= -a ? pls help

Mathematics
1 answer:
irina1246 [14]3 years ago
7 0

Answer:

a=-18

Step-by-step explanation:

It is the same as -1a=18, so you can just transfer that negative to the other side

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The diameter of a circle is 6 units what is the radius
krek1111 [17]

Answer:

r=3

Step-by-step explanation:

The diameter is double the radius. So, divide by 2.

6 0
3 years ago
Read 2 more answers
Please help. Full explanation if you can.
sukhopar [10]
392 boots. If you divide everything into "sets" of an unknown amount, there are 5 more "sets" of boots than sandals, also known as the 245 boots. So if you divide 245 by 5, you'll get the number of items in a "set". Then just multiply by 8 from the 8:3 ratio. If you check it, it will come out to 392 boots to 147 sandals, which I think is ridiculous since sandals are supposed to come in pairs so  you should never have a odd number. But anyway, 392 - 147 = 245
6 0
3 years ago
It says ( Find the length of the hypotenuse )<br> ~<br> Pls?<br> Thanks!
Mashcka [7]

Answer:

5

Step-by-step explanation:

In order to solve this problem, we need to use Pythagorem Theorem (a^2+b^2=c^2)

When using the pythagorem theorem the hypoteneuse would be the c^2 and the two other sides would be a and b (the order doesn't matter).

So, our formula would be:

4^2+3^2=c^2

Simplifies into:

25=c^2

In order to remove the exponent 2, we would have to square root both sides by 2. After doing so, you get the answer 5.

Hope this helps! :)

5 0
2 years ago
Read 2 more answers
I NEED HELP I DONT KNOW THIS ANSWER
Papessa [141]

Answer:

Help with what

Step-by-step explanation:

4 0
2 years ago
I need x+y=5 and y=2x-4solved algebraically
schepotkina [342]

Answer:

x = 3; y = 2

Step-by-step explanation:

x + y = 5

y = 2x - 4

<em>Isolate the y in the first equation</em>

y = 5 - x

y = 2x - 4

<em>Substitute the values</em>

5 - x = 2x - 4

<em>Isolate the Variable</em>

9 = 3x

<em>Simplify</em>

3 = x

<em>Plug that into the first equation</em>

3 + y = 5

<em>Subtract 3 from both sides</em>

y = 2

4 0
3 years ago
Read 2 more answers
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