﻿ Hannah has 127 books in her collection. Her school is hosting a book donation. There are z students at her school, and they each plan to donate the same number of books and reach a total donation of 300 books! How many books will Hannah have in her collection after her donation? Write your answer as an expression. - AssignmentGrade.com

# Hannah has 127 books in her collection. Her school is hosting a book donation. There are z students at her school, and they each plan to donate the same number of books and reach a total donation of 300 books! How many books will Hannah have in her collection after her donation? Write your answer as an expression.

QUESTION POSTED AT 19/02/2020 - 02:30 PM

b/50

Step-by-step explanation:                                                                          There were 150 students who donated a total of b books.

The students donated an average of b/150 books each.

Hannah donated 3 times as many books as the average.

b/150 * 3 = b/50

Hannah donated b/50 books.

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P = principal (initial amount), r = rate of interest, and t = time

So, A = 3000(1+0.025)^4

ANSWERED AT 30/03/2020 - 01:35 AM

QUESTION POSTED AT 30/03/2020 - 01:35 AM

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A = P(1+r)^t  where P is the principal (starting) amount, r is the rate of interest, and t is time. Knowing this, plug in your values:

A = 3,000(1+0.025)^4 < this is what your equation should look like. Once you enter this into a calculator, you should get an answer of \$3,311.438672. Round, and you'll be finished.

Answer: The final balance on the account will be \$3,311.44

ANSWERED AT 30/03/2020 - 01:33 AM

QUESTION POSTED AT 30/03/2020 - 01:33 AM

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QUESTION POSTED AT 30/03/2020 - 01:32 AM

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QUESTION POSTED AT 29/03/2020 - 11:15 PM

For number 3...    You can count the blocks and the number you get is how many unit cubes. You can also multiply the length width and height and subtract the amount missing.

ANSWERED AT 29/03/2020 - 06:35 PM

QUESTION POSTED AT 29/03/2020 - 06:35 PM

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Lets do this the elimination way. to do this, you multiply the bottom equation by three, and now you have
2x-3y=13
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lets add these two equations together. you get
11x=22
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now substitute 2 for x in the first equation.
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y=-3, x=2

ANSWERED AT 29/03/2020 - 06:35 PM

QUESTION POSTED AT 29/03/2020 - 06:35 PM

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What do you mean? Please message me the question and I will gladly help

ANSWERED AT 29/03/2020 - 06:34 PM

QUESTION POSTED AT 29/03/2020 - 06:34 PM

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1. 0.625 and 62.5%
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ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

### Write 76% as a decimal and also a reduced fraction. 2. Master Shifu tries to discourage Po from training. He teases Po about messing up 4 out of every 10 Kung Fu moves that he tries to do. What percent of Po's moves does he mess Up?

Write 76% as a decimal and as a reduced fraction.

Decimal : 0.76

Fraction : 76/100, which then simplifies to 38/50, because you divide the numerator & denominator by 2. Then, you divide them by 2 again, and get 19/25.

Reduced Fraction : 19/25

2) Po messes up 4 out of every 10 moves.

So, to make this slightly easier, we're going to turn that (above) into a fraction!

Fraction : 4/10

Then, we turn it into a decimal.

To turn it into a decimal, multiply 4/10 by 10/10, so that the denominator is 100.

Fraction: 4/10 × 10/10 = 40/100

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Now, because we have our decimal, we simply say that the percentage is 40%.

Why? Because if the decimal is in the hundredths place, all you need to do is take the numbers on the right side of the decimal marking, and add a percentage sign to it.

~Hope I helped!~

ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

### A bag of coins contains 2 quarters, 5 dimes, 3 nickels, and 4 pennies. If 2 coins are randomly chosen from the bag, one after the other, and not replaced, and if the total value of the chosen coins is 26 cents, what is the probability that a third coin randomly chosen from the bag will be a penny? A) 1/3 B) 1/4 C) 3/13 D) 3/14

The probability is, B, 1/4.

ANSWERED AT 29/03/2020 - 06:30 PM

QUESTION POSTED AT 29/03/2020 - 06:30 PM

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ANSWERED AT 29/03/2020 - 06:30 PM

QUESTION POSTED AT 29/03/2020 - 06:30 PM

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ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

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ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

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ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

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ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

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ANSWERED AT 29/03/2020 - 06:28 PM

QUESTION POSTED AT 29/03/2020 - 06:28 PM

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I'm not sure if this is what you're looking for, it's a pretty simple equation. What math are you in? This is how I would do it.
66=2x
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ANSWERED AT 29/03/2020 - 06:28 PM

QUESTION POSTED AT 29/03/2020 - 06:28 PM

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ANSWERED AT 29/03/2020 - 06:28 PM

QUESTION POSTED AT 29/03/2020 - 06:28 PM

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ANSWERED AT 29/03/2020 - 06:28 PM

QUESTION POSTED AT 29/03/2020 - 06:28 PM

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ANSWERED AT 29/03/2020 - 06:28 PM

QUESTION POSTED AT 29/03/2020 - 06:28 PM

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ANSWERED AT 29/03/2020 - 06:27 PM

QUESTION POSTED AT 29/03/2020 - 06:27 PM

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Hello :
2x-3y=6  ...(1)
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ANSWERED AT 29/03/2020 - 06:27 PM

QUESTION POSTED AT 29/03/2020 - 06:27 PM

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Two Triangles are Congruent by following Geometrical Axioms

1. SAS

2.SSS

3. AAS

4. ASA

1. In Δ DEF and Δ P QR

PQ=DE

∠DEF=∠PQR→→Each being 90°

EF=QR

Δ DEF ≅ Δ P QR→→[SAS Congruency]

2. As in Image 2, only one angle is common

we can't say that triangles are congruent.

3. In ΔT UV and Δ W X Y

WX=TU

UV=XY

TV=WY

∠TUV=∠WXY

∠UTV=∠XWY

ΔT UV ≅ΔW X Y→→[By SAS or AAS or SSS]

4.In ΔABC and ΔFGH

∠A=∠F=83°

we can't say that triangles are congruent,as neither the other two angles nor the other two sides are equal.

5. None of the sides nor of the angles are equal .So the triangles are not congruent.

→→So, Image 1, Image 3,  are congruent Polygons.

ANSWERED AT 29/03/2020 - 06:27 PM

QUESTION POSTED AT 29/03/2020 - 06:27 PM

### Need help on number 16. A recipe calls for 3 cups of sugar for every 5 cups of flour. If the recipe you make requires 2.5 cups of flour, how many cups of sugar will you need?

Um what if you multiply 2.5 x5=12.5 then multiply 16x3=48 and then subtract 12.5 by 48 and you will get 77 cups of sugar srry if it is not the right answer this is not my account this is my fathers im not in collage im in 5th grade . so i hope this helped you

ANSWERED AT 29/03/2020 - 06:25 PM

QUESTION POSTED AT 29/03/2020 - 06:25 PM

### There are 300 degrees in the sum of the interior angles of a polygon.

The sum of the interior angles of a ngon is 180(n-2)

so

300=180(n-2)
divide boths ies by 180
5/3=n-2
add 2 to both sides (2=6/3)
11/3=n
you can't have 11/3 number of sides, yo have to have a whole number of sides

so no, that is impossible, will never happen

ANSWERED AT 29/03/2020 - 06:24 PM

QUESTION POSTED AT 29/03/2020 - 06:24 PM

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The meaning of term continuous is that there should be no breaking.

In terms of mathematics , a function is said to be continuous function if there are no gaps when you plot the curve on coordinate axis.

In option 1, points scored is an incomplete statement.

Option 2, pages in a book is an example of constant function if you count pages between two pages. But it is a continuous function if page numbers are counted.

Option 3, children in a family is not a continuous function because there are gap in birth of two children.

Option 4, Temperature of an engine varies if engine is moving, otherwise remains constant.

Option (B), pages in a book is a type of data which is BEST described by a continuous model.

ANSWERED AT 29/03/2020 - 06:24 PM

QUESTION POSTED AT 29/03/2020 - 06:24 PM

### Did I answer the following problem right ?

I think it is right.. thats what i would have chose.

ANSWERED AT 29/03/2020 - 06:23 PM

QUESTION POSTED AT 29/03/2020 - 06:23 PM