Answer: its A. kn=NM
Step-by-step explanation:
Answer:
x^2+2x-15
Step-by-step explanation:
Hello! And thank you for your question!
First to make the question more easy to understand. We are going to make these three fractions improper fractions.
To do this I will give an example. 3 1/6. Do 6*3+1=19/6
Equation after made improper:
19/6 + 74/9 - 3/2
Now that we have this we can find the answer!
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Work:
First you are going to find the LCD. And change all the numbers denominators to that LCD.
LCD = 18
Equation After incorporating LCD:
57/18 + 148/18 - 27/18
Second we are going to add all of the numerators together to get:
178/18.
Then simplify 178/18 to get:
89/9
Then convert 89/9 to a mixed fraction:
9 8/9
Final Answer:
9 8/9
It’s probably the third one
Answer:
A= 18, B= 12
Step-by-step explanation:
A +B= 30 -----(1)
A :B= 3 :2
From the ratio,
A ----- 3 units
B ----- 2 units
Units shall be represented by the letter u from this point forth.
Substitute into equation (1):
3u +2u ---- 30
5u ----- 30
u ----- 30 ÷5= 6
This means that 1 unit represents 6.
A
= 3(6)
= 18
B
= 2(6)
= 12