Answer:
Step-by-step explanation:So we know x + y = 21 and 5x +10y = 165 We line them up in columns x + y = 21 5x +10y = 165 To eliminate the x variable, I'll multiply every element in the 1st equation by -5. -5x + -5y = -105 5x + 10y = 165 Now we combine (add) the equations, which eliminates x altogether. 5y = 60 ... y = 12 From there, x + 12 = 21 ... x = 21-12 ... x = 9 You should double check. Do 9 nickles and 12 dimes equal $1.65? A very important thing to remember using this method is to do the same thing to each element in the equation that you change! I hope that helps.
Answer:
the answer is A
Step-by-step explanation:
two times 6 is 12, so you would have doubled the original amount :) sorry if thats confusing, im not the best at explaining
If you tested the ratio of the corresponding sides' lengths, you would find that these two triangles are similar
Here is:
And the similarity statement would be:
two proportional sides and an angle confined
so: SAS
OMN~OJK
I hope that
helps!
If you still need help, just let me know!
Answer:
Domain {-1, 0, 4}
Range {2, 3, 4, 7}
Step-by-step explanation:
domain is the x's with each listed once
range is the y's with each listed once
Answer:
Kindly check explanation
Step-by-step explanation:
Sale before fundraiser = 32
Sale on the day of fundraiser = c
Cost of each carnation sold = 0.25
(Cost * sale before fundraiser) + cost * sale on day of fundraiser
(0.25 * 32) + 0.25 * c
8 + 0.25c
Or
Total carnation sold * cost per carnation
(sale before fundraiser + sale on day of fundraiser) * cost per carnation
(32 + c) * 0.25