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BartSMP [9]
2 years ago
15

Which expressions are equivalent to 8(-10x+3.5y-7)? Select two options.

Mathematics
1 answer:
Alenkasestr [34]2 years ago
6 0

Answer:

4(-20x+7y-14) .. only one option correct

Step-by-step explanation:

8(-10x+3.5y-7) = -80x + 28y -56

4(-20x+7y-14) = -80x +28y -56

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HELP ASAP The graph shows the relationship between time, in hours, and the population, in thousands of a culture of bacteria. y
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Answer:

I’m doing that exact question right now on a test so I just guessed

Step-by-step explanation:

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3 years ago
At a movie theater, an adult ticket costs $10 and a child ticket costs $6. There were 350 people at a movie showing. The revenue
Wittaler [7]
X - number of the adults, y  - number of children;
The system is:
10 x + 6 y = 3292
x + y = 350   =>   y = 350 - x
----------------------
10 x + 6 * ( 350 - x ) = 3292
10 x + 2100 - 6 x = 3292
4 x = 3292 - 2100
4 x = 1192
x = 1192 : 4
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Answer:
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7 0
2 years ago
Read 2 more answers
Give an example of a decreasing logarithmic function that has a positive y-intercept.
Anvisha [2.4K]

Answer: f(x) = -ln(x + 1) + 3

Step-by-step explanation:

We want it to be decreasing, then we can write it, for a start, as:

f(x) = -ln(x)

Ok, now we want it to have a positive y intercept, then we can add a real number inside the logarithm, and other outside: such that f(0) = positive number.

f(x) = -ln(x + 1) + 3

Now, when x = 0 we have:

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3 0
3 years ago
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Pani-rosa [81]

Answer:

$15.21

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17% of $13=0.17*13=2.21

13 (the price of the actual lunch) +2.21= 15.21

Alternatively, you can just do the operation:

13*(1+0.17)=15.21

This is because 1*13=the price of the actual lunch and 0.17*13=the price of the tip

6 0
2 years ago
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