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Andrej [43]
3 years ago
10

Please help this is confusing !

Mathematics
1 answer:
WINSTONCH [101]3 years ago
3 0

Answer:

-1, 0

Step-by-step explanation:

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A shop sells a party hat at x dollars and a mask at y dollars. On a particular morning, 3 hats and 4 masks were sold for $27. In
Aleks [24]

Answer:

Cost of each hat: $5

Cost of each mask: $3

Step-by-step explanation:

Let be "x" the cost in dollars of a party hat and "y" the cost in dollars of a mask.

Set up a System of equations using the information given in the exercise:

\left \{ {{3x+4y=27} \atop {3x+6y=33}} \right.

You can use the Elimination Method to solve this System of equations:

1. You can multiply the first equation by -1.

2. Then you must add the equations.

3. Solve for "y".

Then:

\left \{ {{-3x-4y=-27} \atop {3x+6y=33}} \right.\\.....................\\2y=6\\\\y=\frac{6}{2}\\\\y=3

4. Now you can substitute the value of "y" into any original equation.

5. Finally, solve for "x" in order to find its value.

Then:

 3x+4(3)=27\\\\3x=27-12\\\\x=\frac{15}{3}\\\\x=5

5 0
4 years ago
Which of the following expressions represents the product below?
Tresset [83]

Answer:

(4 i+ 3)(5 - 2i)

= -   {8i}^{2} +  20i + 15 - 6i

= -   {8i}^{2} +  14i + 15

6 0
3 years ago
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Phoenix [80]
The correct answer is B.

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8 0
3 years ago
Two sides of a triangle measure 25 cm and
julia-pushkina [17]
First one I believe
6 0
4 years ago
Multiply.
Salsk061 [2.6K]

Answer: The answer is 0 it can not be a mixed number or a proper fraction because 0 is not a part of a whole aka ( a mixed number or a proper fraction )

Step-by-step explanation:

6 0
3 years ago
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