8) Monica spent $34 on brownies and cookies. We know brownies cost $2

Mathematics

2 answers:

Viefleur [7K]3 years ago

7 0

Answer:

2b+.75c = $34

Step-by-step explanation:

b stands for the amount of brownies and the number beside it represents the price of the brownies. the c stands for the amount of cookies which is also unknown and the number beside that represents the price of the cookies. at the end of the equation is the total price of both the cookies and the brownies.

Anna [14]3 years ago

3 0

The answer is

2b + .75c = 34

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now, since we know the value of the slope, we can use that in the standard equation on a straight line

the standard equation of a straight line is given as

$\begin{gathered} y=mx+c \\ m=\text{slope} \\ c=\text{intercept} \end{gathered}$

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let's use (2, -16)

$\begin{gathered} x=2 \\ y=-16 \\ y=mx+c \\ m=-\frac{21}{2} \\ -16=-\frac{21}{2}(2)+c \\ -16=-21+c \\ \text{collect like terms} \\ c=-16+21 \\ c=5 \end{gathered}$

now we know the value of intercept (c) = 5 and the slope (m) = 21/2

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