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3 years ago

Find the midpoint of a line segment with the given endpoints.(8,-3) (-8,1)

Mathematics

1 answer:

AVprozaik [17]3 years ago

5 0

Answer:

(0,-1)

Step-by-step explanation:

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Tina ate 21 starbursts. If she ate 35% of the package of Starbursts, how many Starbursts are in the package?

mojhsa [17]

Answer:

60 starbursts

Step-by-step explanation:

We can set up an equation to find the answer. 21/x=0.35/1 because we're trying to find how many starbursts make up 100% of the package. So then to solve, we take 21x1 and then divide that by 0.35. From this we find that x=60.

5 0

2 years ago

Stacy goes to the county fair with her friends . The total cost of ride tickets is given by the equation c=3.5t , where c is the

madreJ [45]

Answer:

Step-by-step explanation:

Step one:

given data

we are given that the linear function for the cost is c=3.5t

c is the cost and

t is the number of tickets.

We are told that t=15, to find c, let us put the value of t in the linear function for the cost

$c=3.5(15)\\\\c=52.5$

<u>This shows that 15 tickets will cost $52.5</u>

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3 0

2 years ago

I dont get it so can someone explain

tigry1 [53]

Step-by-step explanation:

option A i think

hope it helps

8 0

2 years ago

Jean runs 8 mi and then rides 11 mi on her bicycle on a biathlon. She rides 9 mph faster than she runs. If the total time for he

Ipatiy [6.2K]

Let Jean's speed while running = x mph

Then Jean's speed while riding will be = x+9 mph

Distance covered by running = 8 miles

Distance covered by riding = 11 miles

Total time taken to complete the race = 1.5 hours

As, $time=\frac{distance}{speed}$

So, time for running= $\frac{8}{x}$

And time for riding= $\frac{11}{x+9}$

Equation becomes:

$\frac{8}{x}+\frac{11}{x+9}=1.5$

Now, multiply every term by 2x(x+9) to clear denominators:

$16(x+9)+22x=3x(x+9)$

Simplifying it we get

$3x^{2}-11x-144=0$

Solve the quadratic equation using formula

$x= \frac{-b+\sqrt{b^{2}-4ac }}{2a}$

putting a=3 , b= -11, c= -144

we get (x - 9)(3x + 16) = 0

where x=9 and x= $\frac{-16}{3}$

Neglect the negative answer as speed cannot be negative, so x = 9 mph

Hence, Jean's running speed is 9 mph and riding speed is x+9 = 9+9 = 18 mph

4 0

3 years ago

Find the common differrence of the arithmectic sequence 6,9.4,12.8,16.2

defon

Common difference r will be the difference between next two values of number row, so we take e.g. second minus first: r=9.4-6=3.4. You can see, that this value is constant as we go through next pairs of values.

3 0

2 years ago