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4 years ago

In the elipse shown below each point marked with a dot is called an

1 answer:

4 0

It could be a "focus". But there's no way to be sure, since you forgot
to include the picture and there's no "ellipse shown below".

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Alberto ran a race at a speed of 9 meters per second. Omar had a 6 meter head start and ran at a speed of 7 meters per second. B

zloy xaker [14]

Answer: Alberto run 27 meters.

Time taken By Alberto=3 seconds

Step-by-step explanation:

Let d be the distance Alberto ran to catch Omar.

Then, distance ran by Omar=x-6

Also, $\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

Since, both started running at the same time.

Time taken By Alberto= $\frac{x}{9}$

Time taken By Omar= $\frac{x-6}{7}$

Now, at the point they meet time taken by both is equal.

$\frac{x}{9}=\frac{x-6}{7}\\\Rightarrow\ 7x=9(x-6)\\\Rightarrow7x=9x-54\\\Rightarrow9x-7x=54\\\Rightarrow\ 2x=54\\\Rightarrow\ x=27$

Hence, Alberto run 27 meters.

Time taken By Alberto= $\frac{27}{9}$ =3 seconds

6 0

4 years ago

Can someone help me with these

vampirchik [111]

Answer: x-intercept is -9

Step-by-step explanation: To find the x intercept y is 0 and to find the y intercept x is 0. 18 divided by -2 is -9, which is the answer

3 0

4 years ago

A school buys a box of staples to refill all 28 staplers in the building. The box has 5,000 total Staples and there are 210 Stap

Rom4ik [11]

a) if you have 5000 staples can you fill 28 staplers with 210 staples in each stapler? and you need to find out if there are enough staples to fill all 28 staplers

b) multiplication and division

c) ~23

d) No there are not

8 0

3 years ago

A football club won 90 of its 120 games in a season. What percentage of games were won

liberstina [14]

Answer:

75%

Step-by-step explanation:

Because if u do 90/120 u get 0.75 and divide it by 100 to get %

so the answer is 75%

Remember to give 5 stars and thank me if the answer is correct

8 0

3 years ago

What 2 factors of 120 either add or subtract to make 39

damaskus [11]

120/30=40-1=39
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7 0

4 years ago