3 years ago

If A+B = 76 & A -B = 38 What is A/B?

Mathematics

2 answers:

natka813 [3]3 years ago

7 0

A+B=76
A-B=38

A=38+B

Substitute into other
38+B+B=76
2b=38
b=19
A+19=76
A=38
B=19

Igoryamba3 years ago

3 0

$A+B=76\\
A-B=38\ \ --->\ \ A=38+B\\\\
38+B+B=76\\
38+2B=76\ \ | subtract\ 38\\2B=38\ \ \ | divide\ by\ 2\\
B=19\\A=57\\\\
\frac{A}{B}=\frac{57}{19}=3$

You might be interested in

The sign of the product of two integers with the same sign is positive. What is the sign of three integers with the same sign? E

Svetradugi [14.3K]

Can be both, because if all three were negative, it would be

negative*negative= positive
positive*negative=negative
example: -1*-1*-1=-1

but if all three were positive, it would obviously be positive, because any number of positives can't make negatives in multiplication.

4 0

3 years ago

The hundreds digit and the ones digit of a three digit number are the same. The sum of its tree digits are 16. If the tens digit

tensa zangetsu [6.8K]

Step-by-step explanation:

Let us denote the three digit number by $abc$ , where $a$ is the hundreds digit, $b$ is the tens digit and $c$ is the ones digit.