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adoni [48]
3 years ago
6

9+10 equals 21 is correct 9+10 in roman numerals are true IX+X=XXI?

Mathematics
2 answers:
vova2212 [387]3 years ago
5 0
9+10=19 not 21
and in roman numerals IX+X equals IXX because if you put the "I" in front of the "X" it means that the number is 1 less than the value X ("X" in roman numerals equals 10 and "I" equals 1). Also if you put the "I" after the "X" it means that the value of that roman numeral is 1 more then "X".
Aleksandr [31]3 years ago
4 0
Not if you keep the ' l ' before the ' XX ' where it belongs. If it's before, then it means take the ' l ' away from them, and you get 19 just as you should. Now I understand this crazy question that keeps coming around.
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Devon and his friends bought strawberry wafers for $3 per packet and chocolate wafers for $1 per packet at a carnival. They spen
Irina-Kira [14]
Hi there!

PART A:
The system of equations we would use would be:
x + y = 22 (amount of items)
3x + 1y = 30 (cost)

Variables:
x = the amount of strawberry wafers bought at the price of $3
y = the amount of chocolate wafers bought at the price of $1

PART B:
To solve, we'll use substitution because we can easily isolate a variable using the first equation.

Work:
x + y = 22 (first equation)
y = 22 - x (isolating a variable)
3x + 1y = 30 (second equation)
3x + (22 - x) = 30 (substituting into the second equation)
2x + 22 = 30 (simplifying)
2x = 8 (subtracting)
x = 4 strawberry wafers
4 + y = 22 (substituting x into the first equation to solve for y)
y = 18 chocolate wafers

ANSWER:
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Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
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Answer:

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Step-by-step explanation:

The first zero, -2, corresponds to the factor x+2 of the polynomial.

Given that this zero, -2, has multiplicity 3, (x+2)^3 represent the first three factors of the polynomial.

The next factor stems from the zero 1:  (x-1).

The next 6 factors stem from the zero 6:  (x-6).

Writing the polynomial in factored form, we get:

f(x) = (x+2) (x+2)^3 (x-1) (x-6)

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3 years ago
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