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Kitty [74]
3 years ago
9

(Please help) A family purchased several brownies and cookies for $48. The number of cookies they purchased was 4 less than the

number of brownies they purchased. Brownies are $5 each and cookies are $9 each. Determine how many cookies and brownies they purchased. (System of Equations)
Mathematics
1 answer:
pishuonlain [190]3 years ago
6 0
6 brownies and 2 cookies. 6x5=30 2x9=18 30+18=48 and 6-2=4
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Which function represents a reflection of f(x) = 5(0.8)x across the x-axis?
lukranit [14]

The function represents a reflection of f(x) = 5(0.8)x across the x-axis is f(x) = -5(0.8)^x

<h3>Reflection of functions and coordinates</h3>

Images that are reflected are mirror images of each other. When a point is reflected across the line y = x, the x-coordinates and y-coordinates change their position. In a similar manner, when a point is reflected across the line y = -x, the coordinates <u>changes position but are negated.</u>

Given the exponential function below

f(x) = 5(0.8)^x

If the function f(x) is reflected over the x-axis, the resulting function will be

-f(x)

This means that we are going to negate the function f(x) as shown;

f(x) = -5(0.8)^x

Hence the function represents a reflection of f(x) = 5(0.8)x across the x-axis is f(x) = -5(0.8)^x

Learn more on reflection here: brainly.com/question/1908648

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8 0
2 years ago
The swim club rents the municipal pool for a flat fee of $500 plus a charge of $75 per swimmer during
kolezko [41]

Answer:

y=500+75x

Step-by-step

because it says plus a charge so you add

3 0
3 years ago
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Solve linear equation -1/5(x-4)=-2
grigory [225]

Answer:

x= 15

Step-by-step explanation:

i worked it out its corect

3 0
3 years ago
She needs 3/4 cup of water she needs 10 more servings what's the answer A 1/1/5 b 3/1/4 c 7/2/4 d 8/2/3
Eddi Din [679]
<h2><u>Corect option</u> :</h2>

= \color{plum}\tt(C) 7 \frac{2}{4}

<h2><u>Answer with steps</u> :</h2>

Quantity of water she needs = \tt \frac{3}{4} \:  cup

Number of servings she needs = 10

Number of cups of water she will need :

= \tt \frac{3}{4} \:   \times 10

=  \tt\frac{30}{4}

=\tt  7\frac{2}{4} \:  cups

Thus, she needs \tt  7\frac{2}{4} \:  cups of water.

Therefore, the correct option is \color{plum}\tt(C) 7 \frac{2}{4}

7 0
2 years ago
Since opening night, attendance at play A has increased steadily, while attendance at play B first rose and then fell. Equations
lbvjy [14]

Answer:

(5,151) and (16,316) are days with equal attendance for both plays.

Step-by-step explanation:

brainly.com/question/8102047

8 0
3 years ago
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