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scZoUnD [109]
3 years ago
5

Brianna went into a bakery and bought 2 cookies and 3 brownies, costing a total of $9.50. Nevaeh went into the same bakery and b

ought 10 cookies and 6 brownies, costing a total of $20.50. Write a system of equations that could be used to determine the price of each cookie and the price of each brownie. Define the variables that you use to write the system.
Mathematics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

Variable x = cost of cookies

Variable y = cost of brownies

System of equations:

2x + 3y = 9.50

10x + 6y = 20.50

Step-by-step explanation:

Variable x: $ cookies

Variable y: $ brownies

2x + 3y = 9.50

10x + 6y = 20.50

I'm not entirely sure how to explain this one, but my best advice is to just take it step by step when doing these problems. Multiple questions can feel overwhelming so just focus on one question at a time.

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Use the given values of n to generate the 7th and 8th terms of the sequence.
lozanna [386]

Answer:

f(n) = 74 + 11(n - 1)

<u>For the 7th term</u>

n = 7

f(7) = 74 + 11(7 - 1)

= 74 + 11(6)

= 74 + 66

<h2>= 140</h2>

<u>For</u><u> </u><u>the</u><u> </u><u>8</u><u>t</u><u>h</u><u> </u><u>ter</u><u>m</u>

n = 8

f(8) = 74 + 11( 8 - 1)

= 74 + 11(7)

= 74 + 77

<h2 /><h2>= 151</h2>

Hope this helps you

7 0
3 years ago
Timothy bought 10 cookies for $5.00.
sweet-ann [11.9K]
R u serious,
y=1/2x
graph at (0,0), and (10, 5)
clearly
ez.
6 0
3 years ago
Read 2 more answers
Can someone please help with this i don’t know how to do it 85points
Dmitry [639]

Answer:

Step-by-step explanation:

You can find the area by cutting it across in the middle into a trapezoid and a rectangle.

The trapezoid will have:

height = 10-4 = 6ft

top = 9-6 = 3ft

bottom = 8ft

So its area = 1/2*(3+8)*6 = 33 ft^2

The rectangle will have:

length = 10ft

width = 6ft

So its area = 10*6 = 60 ft^2

Total area = 60+33 = 93 ft^2

3 0
3 years ago
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Which expression is equal to -1?
Stolb23 [73]

Answer:

c or the 3d one

Step-by-step explanation:

4 0
3 years ago
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Christine's middle school has a total of 900 students and 45 teachers . The local high school has 110 teachers &amp; a student-t
qaws [65]

Answer:

2,200 students

Step-by-step explanation:

To find the number of students, create a proportion which is two equal ratios. Since the middle school and the high school are proportional then they have equal ratios.

\frac{students}{teachers}= \frac{900}{45}=\frac{x}{110}

Solve for x by cross multiplying by multiplying the numerator and denominator of each fraction.

900(110) = 45(x)

99,000=45x

2,200 = x


5 0
3 years ago
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