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Helen [10]
3 years ago
14

Hannas school her to the book donation there are 150 students at her school and they Donated a total of b books Hannah do need i

t three times as many as the average number of books each student donated how many books did Hannah donate
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
4 0

Answer:

She donated b/50 books

Step-by-step explanation:

In this question, we are we are told 150 students donated a total of b books. The average number of books donated by each student will be:

The total number of books/ the total number of students.

The average number of books is this b/150.

Now, we are also told that Hannah donated 3 times the average number of books.

This is simply calculated by multiplying the average number of books donated by 3

This is equal to 3 * b/150 = b/50 books

Hence, Hannah donated b/650 books

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The measures of angle 1and angle 2 are 25% and 45% of the sum of the angle measures of the triangle. Find the value of x.
Svetradugi [14.3K]
25+ 45= 70
70% of 180 is 126
170-126=54

Hope that’s right! I don’t know if that’s the appropriate way to do it, but that’s how I would do it.
5 0
3 years ago
Can someone please solve #8
juin [17]

Answer:

Step-by-step explanation:

2x²+7x=-3

2x²+7x+3=0

2x²+x+6x+3=0

x(2x+1)+3(2x+1)=0

(2x+1)(x+3)=0

x=-1/2,-3

so C

8 0
3 years ago
Max is scuba diving at elevation of -64.5 feet, when friend signals to come higher. Max makes 2 ascents, each an equal distance
KengaRu [80]

Answer: - 42.95 feet

Explanation:

Let each ascent be x. Thus,

2 equal ascents = 2x

From the information given,

initial position = - 64.5 feet

Final position after 2 ascents = - 21.4 feet

This means that

- 64.5 + 2x = - 21.4

2x = - 21.4 + 64.5

2x = 43.1

x = 43.1/2

x = 21.55

Thus, Max's elevation after the first ascent is

- 64.5 + 21.55

= - 42.95 feet

4 0
1 year ago
Using the functions f(x) = (3 - x)/(x2 + 4) and g(x) = 3x, find the value of (f*g)(2).
wariber [46]

9514 1404 393

Answer:

  (f×g)(2) = 3/4

Step-by-step explanation:

For each of the functions, put 2 where x is and evaluate the expression.

  f(2) = (3 -2)/(2² +4) = 1/8

  g(2) = 3×2 = 6

Then the product is ...

  (f×g)(2) = f(2)×g(2) = (1/8)×6 = 6/8

  (f×g)(2) = 3/4

4 0
3 years ago
teresa repartee un chocolate entre sus hermanos. ella le dio 1/3 a miguel y 1/4 a diego. que parte de chocolate repartido teresa
jekas [21]

Answer:

Teresa tiene 1 chocolate.

Ella le da 1/3 del chocolate a Miguel, entonces ahora Teresa tendrá un chocolate menos un tercio de chocolate, es decir, ella tiene:

1 - 1/3 = 3/3 - 1/3 = 2/3 de un chocolate.

Ahora le da 1/4 a diego, entonces lo que le sobra va a ser:

2/3 - 1/4

recordar que tenemos que tener el mismo denominador en ambas fracciones, entonces podemos reescribir esto como:

(4/4)*(2/3) - (3/3)*(1/4)

(a cada fracción la multiplico y divido por el denominador de la otra)

8/12 - 3/12 = (8 - 3)/12 = 5/12

Es decir, Teresa finalmente tiene 5/12 del chocolate.

Entonces la parte de chocolate que repartió es lo que le falta, que se obtiene como:

1 - 5/12 = 12/12 - 5/12 = 7/12

Ella repartió 7/12 de su chocolate.

4 0
3 years ago
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