Seed corn was $5 per bag, whereas dog food cost only $3 per bag. Wewoka bought 50 bags and spent $190. How many bags of dog food did she buy?

To eliminate the y-variable in the given system of equations and find the value of x, you can multiply the first equation by 3 and the second equation by 4 to make the coefficients of y equal. Then, add the two equations together to eliminate the y-variable. Finally, solve for x.

To eliminate the y-variable and find the value of x in the given system of equations, we can multiply the first equation by 3 and the second equation by 4 to make the coefficients of y in both equations equal. This will allow us to eliminate the y-variable when we subtract the two equations.

Multiplying the first equation by 3, we get: 6x - 12y = 18

Multiplying the second equation by 4, we get: -12x + 12y = 48

Now, we can add the two equations together, and the y-variable will cancel out: (6x - 12y) + (-12x + 12y) = 18 + 48

Simplifying, we have: -6x = 66

Dividing both sides by -6, we find: x = -11

Therefore, the value of x is -11.

Final answer:

To eliminate the y-variable and find the value of x in the system of equations, we can use the method of elimination. We can multiply the equations by coefficients to create opposite coefficients for the y-terms, which will cancel each other out when added together. The resulting equation can then be solved to find the value of x.

Explanation:

To eliminate the y-variable and find the value of x, we can use the method of elimination. In this case, we need to multiply the two equations by coefficients that will create opposite coefficients for the y-terms so that they will cancel each other out when added together. Let's multiply the first equation by 3 and the second equation by 4:

6x - 12y = 18

-12x + 12y = 48

Adding these two equations eliminates the y-variable:

-6x = 66

Solving for x, we divide both sides by -6:

x = -11

Answer:

c, y=-7x-11

Step-by-step explanation:

The probability of selecting a male calculus student is approximately 57.14%, a female calculus student is approximately 42.86%, a business major calculus student is approximately 28.57%, a biology major calculus student is approximately 21.43%, a computer science major calculus student is approximately 10.71%, and a mathematics major calculus student is approximately 3.57%.

To find the probabilities, we will use the formula:

Probability of an event = (Number of favorable outcomes) / (Total number of possible outcomes)

Probability of selecting a male calculus student:

There are 80 male students in calculus, so the probability of choosing a male student is:

Probability (Male) = 80 / (80 + 60) = 80 / 140 ≈ 0.5714 or 57.14%

Probability of selecting a female calculus student:

There are 60 female students in calculus, so the probability of choosing a female student is:

Probability (Female) = 60 / (80 + 60) = 60 / 140 ≈ 0.4286 or 42.86%

Probability of selecting a business major calculus student:

There are 40 business majors in calculus, so the probability of choosing a business major student is:

Probability (Business Major) = 40 / 140 ≈ 0.2857 or 28.57%

Probability of selecting a biology major calculus student:

There are 30 biology majors in calculus, so the probability of choosing a biology major student is:

Probability (Biology Major) = 30 / 140 ≈ 0.2143 or 21.43%

Probability of selecting a computer science major calculus student:

There are 15 computer science majors in calculus, so the probability of choosing a computer science major student is:

Probability (Computer Science Major) = 15 / 140 ≈ 0.1071 or 10.71%

Probability of selecting a mathematics major calculus student:

There are 5 mathematics majors in calculus, so the probability of choosing a mathematics major student is:

Probability (Mathematics Major) = 5 / 140 ≈ 0.0357 or 3.57%

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Answer : D 10

The stem and leaf plot below shows the number of points scored in each basketball game a team played during a season

From the stem and leaf plot , We have 4 leaf for the stem 4

so the scores are 44, 45, 48, 49

Question says more than 40 points scored. so we consider stem 5  and 6 as well

61, 66, 67  

5 2, 52, 58

So total 10 scores

There were 10 games in which the basketball team scored more than 40 points.

The stem and leaf plot provided shows the scores of a basketball team across different games. To find out in how many games more than 40 points were scored, we should look for leaves attached to stems of '4' or higher, since the stems represent the 'tens' place and the leaves represent the 'ones' place in a score.

In the stem '4', we have leaves '4', '5', '8', and '9', which correspond to the scores 44, 45, 48, and 49, respectively. Moving up to the stem '5', we have leaves '2', '2', and '8', which translate to the scores 52, 52, and 58. Finally, the stem '6' with leaves '1', '6', and '7' represents the scores 61, 66, and 67.

Adding all the games with scores over 40 points together, we get a total of 4 (from the '4' stem) + 3 (from the '5' stem) + 3 (from the '6' stem) = 10 games.

The solution is:

Park is 5 miles from Billy's home.

Speed is measured as distance moved over time. The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time. In this example, distance is in metres (m) and time is in seconds (s), so the units will be in metres per second (m/s).

Speed = Distance/ Time.

Given:

Billy left home at 9 a.m. And rode his bicycle to the park at an average speed of 10 miles per hour here and got the park at 9:30 a.m.

Now, to find the distance from park to Billy,s home.

Time it took Billy to rode his bicycle from park to home is from 9.30 a.m to 9.30 p.m.

So, the time = (9.30 - 9.00) = 30 minutes

Speed = 10 miles per hour.

Now, to get the distance from park to Billy's home we put formula:

Speed = Distance/ Time.

so, we get,

Distance = 10 * 0.5

              = 5

Therefore, park is 5 miles from Billy's home.

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Answer:

I'm pretty sure its D

Step-by-step explanation: Brainliest???

To calculate the percent of total miles Elaina ran on Monday, add her running totals, find the fraction for Monday, and convert it to a percentage. Elaina ran 24% of her total weekly miles on Monday.

To determine what percent of the total miles Elaina ran on Monday, we first need to calculate the total number of miles she ran for the week. Then, we'll find out what fraction represents Monday's run in relation to the total, and finally convert that fraction to a percentage.

First, we sum up the miles:

Total miles = 2.52 + 4.53 + 3.45

Total miles = 10.50 miles

Next, we determine what fraction of the total distance was run on Monday:

Monday's fraction = Monday's miles / Total miles = 2.52 / 10.50

Finally, we convert this fraction to a percentage:

Monday's percentage = (Monday's fraction) x 100 = (2.52 / 10.50) x 100

Monday's percentage = 24% (rounded to the nearest whole percent)

Thus, Elaina ran 24 percent of her total weekly mileage on Monday.

We know that the probability of a certain hockey player making a goal after hitting a slap shot is [tex]\frac{1}{5}[/tex].

We need to figure out the number of successful slap shots if she makes 120 attempts?

Since the player is able to make a goal once out of 5 attempts. Therefore, in order to find the number of goals that we can expect the player to make successfully if she attempts 120 slap shots we will multiply the probability with 120.

Number of successful goals = (Probability of making one goal)x(Number of attempts)

Number of successful goals = [tex]\frac{1}{5}\times 120 = 24[/tex].

Therefore, player will be able to make 24 goals out of 120 attempts.