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Flauer [41]
3 years ago
11

Solve the system with substitution: y=3x-1 and -9x+3y=-3

Mathematics
1 answer:
kati45 [8]3 years ago
7 0
I hope this helps. the answer is infinite

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Mike paid $11.71 total
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Answer:

Bill received 13.68 change back.

Step-by-step explanation:

20-6.32=13.68

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3 years ago
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Write a word problem for 8x - 5 = 40
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Bob only has 40 dollars but he wants to buy a membership at the gym. It cost 8 dollars per month to receive a gym card. Bob went to the Gym in person so they gave him a 5 dollar off coupon. How many months can Bob buy?

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How many shapes would I have on term 104?​
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313 shapes

Step-by-step explanation:

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2 years ago
Which is the equation for the line that has a slope of 12 and passes through the point (3, 20)?
sasho [114]

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y=12x-16

Step-by-step explanation:

y-y1=m(x-x1)

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2 years ago
Six sophomores and 14 freshmen are competing for two alternate positions on the debate team. Which expression represents the pro
Elanso [62]

Answer:

<em>Choose the first alternative</em>

\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}

Step-by-step explanation:

<u>Probabilities</u>

The requested probability can be computed as the ratio between the number of ways to choose two sophomores in alternate positions (N_s) and the total number of possible choices (N_t), i.e.

\displaystyle P=\frac{N_s}{N_t}

There are 6 sophomores and 14 freshmen to choose from each separate set. There are 20 students in total

We'll assume the positions of the selections are NOT significative, i.e. student A/student B is the same as student B/student A.

To choose 2 sophomores out of the 6 available, the first position has 6 elements to choose from, the second has now only 5

_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C} \text{ ways to do it}

The total number of possible choices is

_{2}^{20}\textrm{C} \text{ ways to do it}

The probability is then

\boxed{\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}}

Choose the first alternative

7 0
2 years ago
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