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Alex17521 [72]
2 years ago
15

Brian and Heidi went shopping at the mall. Brian spent 30% of the money he had on video games. Heidi spent 25% of her money on c

lothes. If Brian had $140 and Heidi had $180, who spent more money? Explain how you know.
Mathematics
2 answers:
andre [41]2 years ago
8 0
Heidi... if you use a proportion you can find this answer
Lunna [17]2 years ago
7 0
Brain :110

Heidi :155

Brian spent more he spent 30% and Heidi spent 25%

                         Brain
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The function f(t) = t2 + 6t − 20 represents a parabola.
Novay_Z [31]
Part A: f(t) = t² + 6t - 20
              u = t² + 6t - 20
         + 20            + 20
      u + 20 = t² + 6t
u + 20 + 9 = t² + 6t + 9
      u + 29 = t² + 3t + 3t + 9
      u + 29 = t(t) + t(3) + 3(t) + 3(3)
      u + 29 = t(t + 3) + 3(t + 3)
      u + 29 = (t + 3)(t + 3)
      u + 29 = (t + 3)²
          - 29       - 29
              u = (t + 3)² - 29

Part B: The vertex is (-3, -29). The graph shows that it is a minimum because it shows that there is a positive sign before the x²-term, making the parabola open up and has a minimum vertex of (-3, -29).
------------------------------------------------------------------------------------------------------------------
Part A: g(t) = 48.8t + 28           h(t) = -16t² + 90t + 50
            | t |   g(t)  |                          |  t  |  h(t)  |
            |-4|-167.2|                          | -4 | -566 |
            |-3|-118.4|                          | -3 | -364 |
            |-2| -69.6 |                          | -2 | -194 |
            |-1| -20.8 |                          | -1 |  -56  |
            |0 |   -28  |                          |  0  |   50  |
            |1 |  76.8 |                          |  1  |  124 |
            |2 | 125.6|                          |  2  | 166  |
            |3 | 174.4|                          |  3  | 176  |
            |4 | 223.2|                          |  4  | 154  |
The two seconds that the solution of g(t) and h(t) is located is between -1 and 4 seconds because it shows that they have two solutions, making it between -1 and 4 seconds.

Part B: The solution from Part A means that you have to find two solutions in order to know where the solutions of the two functions are located at.
4 0
3 years ago
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Rewrite the expression in the form x^n x^6/x^8
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Please answer please please thank you thank goodness
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3 years ago
Each friend received 5/4 of a pound of berries, how many friends are sharing berries?​
Rudiy27

Answer:

2

Step-by-step explanation:

If 5 friends are sharing the berries, how many pounds of berries does each friend receive? Is the answer to 3/4 divided by 2/5 greater than or less than 1.

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2 years ago
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Neko [114]

Answer:

B

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Because of the exponent in x²

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What is the value of x?<br><br> A.31<br> B.41<br> C.29<br> D.60
Oksana_A [137]

your answer is c 29. To figure this out take 59-180= 121. Then add 121 and 30 =151. next subtract 151 from 180 and you get C 29

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3 years ago
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