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3 years ago

What is the solution?

Mathematics

2 answers:

wariber [46]3 years ago

5 0

Whats the attachment

ivann1987 [24]3 years ago

5 0

If you solve by graphing just remember that the slope of the lines are the x values and the y-intercept is the constant value.

But I will also solve by substitution:

Set one equation equal to the other:

x - 1 = 1/2 x + 1

Add one to both sides of the equation:

x = 1/2 x + 2

Subtract 1/2 x from both sides of the equation:

1/2 x = 2

Multiply both sides of the equation by two:
x = 4.
Plug this value of x into the first equation:
y = 4 - 1
Solve for y:
y= 3
Check the solution by plugging the values of x and y into either equation:
3 = 1/2(4) + 1
3= 2 + 1
3 = 3

Hope this helps and let me know if you have more questions!

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I need help on finding an equation!?

Sedbober [7]

Your distance from Seattle after two hours of driving at 62 mph, from a starting point 38 miles east of Seattle, will be (38 + [62 mph][2 hr] ) miles, or 162 miles (east).

Your friend will be (20 + [65 mph][2 hrs] ) miles, or 150 miles south of Seattle.

Comparing 162 miles and 150 miles, we see that you will be further from Seattle than your friend after 2 hours.

After how many hours will you and your friend be the same distance from Seattle? Equate 20 + [65 mph]t to 38 + [62 mph]t and solve the resulting equation for time, t:

20 + [65 mph]t = 38 + [62 mph]t

Subtract [62 mph]t from both sides of this equation, obtaining:

20 + [3 mph]t = 38. Then [3 mph]t = 18, and t = 6 hours.

You and your friend will be the same distance from Seattle (but in different directions) after 6 hours.

7 0

3 years ago

Function or no a function

marishachu [46]

Answer:

Not a function

Step-by-step explanation:

If it was a function there should be only one values for every x, in this case there is two values for x=0. Doesn't pass the vertical test.

7 0

2 years ago

Read 2 more answers

What number is 40% of 20?<br>

fredd [130]

40% of 20 would be 8.

7 0

3 years ago

Read 2 more answers

A college football coach has decided to recruit only the heaviest 15% of high school football players. He knows that high school

Alla [95]

Answer:

The coach should start recruiting players with weight 269.55 pounds or more.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 225 pounds

Standard Deviation, σ = 43 pounds

We are given that the distribution of weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.15

$P( X > x) = P( z > \displaystyle\frac{x - 225}{43})=0.15$

$= 1 -P( z \leq \displaystyle\frac{x - 225}{43})=0.15$

$=P( z \leq \displaystyle\frac{x - 225}{43})=0.85$

Calculation the value from standard normal z table, we have,

$P(z < 1.036) = 0.85$

$\displaystyle\frac{x - 225}{43} = 1.036\\\\x = 269.548 \approx 269.55$

Thus, the coach should start recruiting players with weight 269.55 pounds or more.

3 0

3 years ago

Write and real-world problem that could be represented by the inequality below:

natima [27]

Answer:

Tiffany has a number of skittles plus 655 watermelon sour patch kids. Compared to Jake, Jake has 5 times more skittles than Tiffany, plus 600 watermelon sour patch kids. Write an inequality to represent this scenario.

I hope this helped! :) If it was correct for your question please give me brainliest!

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2 years ago