$10x+y-(10y+x)=36\\
10x+y-10y-x=36\\
9x-9y=36\\
x-y=4\\\\
x,y\in\{1,2,3,4,5,6,7,8,9\}\\
\Downarrow\\
x=5,y=1\\
x=6,y=2\\
x=7,y=3\\
x=8,y=4\\
x=9,y=5


$

There are 5 such numbers - 51,62,73,84,95

6 0

2 years ago

Solve for x. x/7 - y = a<br><br> Please help as soon as possible. Thanks! =D

ololo11 [35]

Hello!

Answer:

x=7(a+y)

Step-by-step explanation:

Hope this helps!

5 0

2 years ago

Quick QUICK QUICK QUICK PLEASEEEEEEEE! 1 MINUTE ONLY 30 POINTS WILL BE BRAINLIEST!

mihalych1998 [28]

Theatre A uses 2.5 cups of salt

5 0

2 years ago

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How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation

lakkis [162]

In order to find the square root, we must find a number that when multiplied by itself one time, it produces the number under consideration.
In the case of 64, the square root is 8 because 8 multiplied once by itself is 64.

However, when finding the cube root, the root must multiply by itself two times and make the number.
In the case of 64, 4 multiplied by itself two times is 64.

3 0

2 years ago

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