1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vika [28.1K]
3 years ago
7

Hannah school hosted a book donation. There are 150 students at her school, and they donated a total of b books! Hannah donated

3 times as many as the average number of books each student donated.
How many books did Hannah donate?
Write your answer as an expression.
Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0
I think she 89 that’s what I think
AlekseyPX3 years ago
5 0

Answer:

b/50

Step-by-step explanation:

You might be interested in
How to solve 2.13x2.6
TiliK225 [7]
Line up the decimal points and multiply right to left ...any missing numbers equal 0
7 0
3 years ago
Triangles Q R S and X Y Z are shown. Angles Q S R and X Z Y are right angles. Angles Q R S and X Y Z are congruent. The length o
kumpel [21]

Answer:

Three-fourths

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

∠QSR≅∠XZY ---> given problem

∠QRS≅∠XYZ ---> given problem

so

△QRS ~ △XYZ ----> by AA Similarity theorem

Remember that, if two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

That means

\frac{QS}{XZ}=\frac{QR}{XY}=\frac{RS}{YZ}

∠Q≅∠X

∠R≅∠Y

∠S≅∠Z

<em>In the right triangle XYZ</em>

Find the tangent of angle X

tan(X)=\frac{YZ}{XZ} ---> opposite side angle X divided by adjacent side angle X

substitute the given values

tan(X)=\frac{9}{12}

Simplify

tan(X)=\frac{3}{4}

Remember that

∠Q≅∠X

so

tan(Q)=tan(X)

therefore

tan(Q)=\frac{3}{4} ---->Three-fourths

7 0
2 years ago
Read 2 more answers
Can you help me please
Ierofanga [76]

Answer:

The average rate of change is 3.5

6 0
3 years ago
Find the mean absolute<br> deviation of the set of data.<br> 4, 5, 8, 8, 10 (I also need on this)
Klio2033 [76]

Answer:

MAD = 0

Step-by-step explanation:

When I calculated this by hand I got 0. To find the MAD:

1. You first need to find the mean of the numbers.

4 + 5 + 8 + 8 + 10 = 35

35/5 = 7

the mean value = 7

2. Then you must find the absolute value of the difference between each data value and the mean: |data value – mean|

(4 - 7) = -3

(5 - 7) = -2

(8 - 7) = 1

(8 - 7) = 1

(10 - 7) = 3

3. Add the difference values up

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

4. Divide the sum of the absolute values of the differences by the number of data values.

0/5 = 0

3 0
3 years ago
What is the value of n 9 times 27+2 times31-28
Kay [80]
9•27+2•31-28= ? Is that what you are asking?
8 0
3 years ago
Other questions:
  • Which expression gives the closet estimate of 268+524
    11·1 answer
  • How did u divide that
    9·1 answer
  • A line passes through (8,-1) and is perpendicular to y=2x-9. What is the equation of the line in point-slope form?
    13·2 answers
  • 297, 252, 207, 162, ?
    6·2 answers
  • A spinner is divided into 4 equal sections. Which of the following are true?
    6·2 answers
  • Simplify square root of 2 multiplied by the cube root of 2.
    12·1 answer
  • Solve for s.<br> -65 + 9 = -5s
    6·2 answers
  • X^2+x-6 plz tell this
    7·2 answers
  • Plz help with this question
    14·1 answer
  • Amrutha sold a watch for Rs1350 and suffered a loss of 10% then find <br><br>a) loss <br><br>b) CP​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!