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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:

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Express your answer in simplest a+ bi form. (8+5i)(3+2i)-(4+i)(4-i)
Elanso [62]

\qquad\qquad\huge\underline{{\sf Answer}}

Let's solve ~

\qquad \sf  \dashrightarrow \:(8 + 5i)(3 + 2i) - (4 + i)(4 - i)

\qquad \sf  \dashrightarrow \:[( 8 \sdot3) + (8 \sdot2i) + (5i \sdot3) + (5i \sdot2i)] -[( 4 \sdot4) + (4 \sdot - i) + (i \sdot4) + (i \sdot - i)]

\qquad \sf  \dashrightarrow \:[24+ 16i + 15i+ 10i {}^{2} ] -[16 - 4 i+ 4i - i {}^{2} ]

\qquad \sf  \dashrightarrow \:[24+ 31i+ 10 {}{( - 1)} ] -[16 - ( - 1){}^{} ]

\qquad \sf  \dashrightarrow \:[24+ 31i - 10 {}{} ] -[16  + 1{}^{} ]

\qquad \sf  \dashrightarrow \:[14+ 31i {}{} ] -[17{}^{} ]

\qquad \sf  \dashrightarrow \: - 3+ 31i {}{}

I hope you understood the procedure ~

5 0
2 years ago
Please help me thank you :)
natali 33 [55]

The function on the table is decreasing on the interval [-2, 0).

<h3>Over what interval is the function shown in the table decreasing?</h3>

A function is decreasing if, as x increases, f(x) decreases.

We can see that at x = -2, f(-2) = 12.

Then at x = 0, f(0) = 0.

And for the value after that:

x = 1, f(1) = 3

So now the function increases. Then we conclude that the function is decreasing on the interval [-2, 0), and after that the function increases.

If you want to learn more about decreasing functions:

brainly.com/question/1600302

#SPJ1

6 0
2 years ago
Honestly these are really easy.Help me plz on these easy 6 questions!!!
Rudiy27
1) 4.28
2) 14.05
3) 2 r 30
4) $22.65
5) 684
6) 124.05
~this was rlly hard~
6 0
3 years ago
Seven out of ten people say they will vote for Mrs. Meekus . If 5,500 people vote,how many are likely to vote for Mrs.Meekus​
Assoli18 [71]

Answer:

3,850 people are likely to vote for Mrs. Meekus.

Step-by-step explanation:

Given that Mrs. Meekus has a voting intention of 7 out of 10, that is, 70%, in the event that 5,500 people are going to vote in the elections, the voting intention for this candidate would be obtained through the following calculation:

5,500 x 0.70 = X

3,850 = X

Thus, if said voting intention is reproduced, Mrs. Meekus would be voted by 3,850 voters.

5 0
3 years ago
If you know that 7 x 8 =56, how can you use the commutative (order) property of multiplication to find the product of 8 x 7?
r-ruslan [8.4K]

Answer:

Step-by-step explanation:

Yes

7 0
3 years ago
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