3/4z = 2/3a
z + a = 510...z = 510 - a
3/4(510 - a) = 2/3a
382.50 - 3/4a = 2/3a
382.50 = 2/3a + 3/4a
382.50 = 8/12a + 9/12a
382.50 = 17/12a
382.50 * 12/17 = a
270 = a
z + a = 510
z + 270 = 510
z = 510 - 270
z = 240
check..
3/4z = 2/3a
3/4(240) = 2/3(270)
180 = 180 (correct)
Zul had $ 240
Zul gave 30% of his money to his sister
0.30(240) = 72
his sister received $ 72
12 and 23
- Two numbers are relatively prime only when they have 1 as the common factor . or in other words they can not be divided by any other number other than 1 and itself.
- To find
- relative prime
- of two numbers we need to find the HCF of the numbers. If the HCF is 1, then the two numbers are said to be relatively primes or in other words only 1 should be common as factor.
- factor of 23 = 2, 2, 3, 1
here only 1 is a common factor.
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Answer: b
Step-by-step explanation: 19 x 3 = 57 & 12 x 3= 36 so subtract 57 and 36 that’s going to give you 21 & 21 plus 6 is 27
You can see graph of the function
in the first picture. Now to find its inverse, we are going to switch
and
in our function, and then solve for
Remember that every time that you take a square root, you will have tow results: one positive and one negative. Therefore, our function
will have tow inverses:
and
.
In the first picture you can see the graph of the original function; in the second one the graphs of its inverses, and in the third one all the graphs together. Notice that our original function is a quadratic function, and quadratic functions don't have inverse functions unless their domains are restricted.
The answer is A uhhhhhhhhhhhhhhh