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Iteru [2.4K]
2 years ago
14

Can someone help me?

Mathematics
1 answer:
lianna [129]2 years ago
7 0

Answer:

(-4,-7)

Step-by-step explanation:

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I need help with these 2 <br> i need to get a answer and i have to explain pls help! :(
OLga [1]

Answer:

12. C. 40 more students chose baseball than basketball

20. 500 total flowers

Step-by-step explanation:

12. To find the number of students that chose baseball, we multiply 25% by 800 students surveyed. First we have to convert 25% to a decimal = 0.25

800 x 0.25 = 200 students chose baseball.

Then, for basketball, 20% of students chose that, so 20% = 0.20

800 x 0.2 = 160 students chose basketball

200-160 = 40 more students chose baseball than basketball

----------------------------

20. I don't know what your "magic sentence" looks like. You can set this up as a ratio, where x is the total number of flowers, and the 56% is a fraction of 56/100

280/x = 56/100

then cross multiply

28,000 = 56x

divide by 56

x = 500

Check the math: 500 x 0.56 = 280

If you want to tell me what your teacher's "magic sentence" looks like in the comments, I can try to fill it in with/for you.

6 0
2 years ago
Fill in the blank with the correct response.<br><br> 4 days = ???<br> hours plz help
vaieri [72.5K]
Answer:
96

Explanation:
Just do 4x24 that will give u 96
7 0
3 years ago
Read 2 more answers
Two fractions have a common denominator of 8 which of these could be two fractions 1/2 and 2/3 and 1/4 1/2
Anna007 [38]
Hi

Fractions that have a common denominator of 8, would be fractions that have denominators that, when multiplied, equal 8. 

8/2 = 4
8/3 = 2.7
So the first option is incorrect.

8/4 = 2
8/2 = 4
The second option is correct.

The correct answer is 1/4 and 1/2

Hope this helps! :)
5 0
3 years ago
The stream of water from a fountain follows a parabolic path. The stream reaches a maximum height of 7 feet, represented by a ve
xenn [34]

First of all, I'm going to assume that we have a concave down parabola, because the stream of water is subjected to gravity.

If we need the vertex to be at x=4, the equation will contain a (x-4)^2 term.

If we start with y=-(x-4)^2 we have a parabola, concave down, with vertex at x=4 and a maximum of 0.

So, if we add 7, we will translate the function vertically up 7 units, so that the new maximum will be (4, 7)

We have

y = -(x-4)+7

Now we only have to fix the fact that this parabola doesn't land at (8,0), because our parabola is too "narrow". We can work on that by multiplying the squared parenthesis by a certain coefficient: we want

y = a(x-4)^2+7

such that:

  • a
  • when we plug x=8, we have y=0

Plugging these values gets us

0 = a(8-4)^2+7 \iff 16a+7=0 \iff a = -\dfrac{7}{16}

As you can see in the attached figure, the parabola we get satisfies all the requests.

3 0
3 years ago
If a person draws a playing card and checks its suit and then spins a three-space spinner, describe the sample space of possible
3241004551 [841]

Answer:

,,

Step-by-step explanation:

5 0
3 years ago
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