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kotegsom [21]
3 years ago
7

Olivia had 176 books and Dawn had 80 books.After each of them donated an equal number of books to an orphanage, Olivia had 5 tim

es as many books as Dawn left. How many books did each of them donate?
Mathematics
2 answers:
Alexxandr [17]3 years ago
5 0

Answer:

They each donated 56 books

Step-by-step explanation:

O = 176

D = 80

O - a = 5(D - a)

176 - a = 5(80 - a)

176 - a = 400 - 5a

4a = 224

a = 56

ratelena [41]3 years ago
3 0

Answer:

Each person donated 56 books.

Step-by-step explanation:

Let d represent the # of books donated by each person.  Then:

in Olivia's case, 176-d = 5(80-d).  Then 176-d = 400 - 5d.

Solving for d:  4d = 224, and d = 56.

Each person donated 56 books.

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Cecily's teacher held a raffle. To win the raffle, a student has to pick a paper scroll with an integer written on it. The chart
AfilCa [17]

Complete question :

Cecily’s teacher held a raffle. To win the raffle, a student has to pick a paper scroll with an integer written on it. The chart shows the scrolls picked by Cecily and her friends.

Name

Paper Scroll

Cecily

A scroll labeled 6.7.

Marty

A scroll labeled negative 37.

Jon

A scroll labeled StartFraction 7 Over 9 EndFraction

Fiona

A scroll labeled 3 and one-third.

Who picked the winning scroll?

Cecily picked the winning scroll.

Marty picked the winning scroll.

Jon picked the winning scroll.

Fiona picked the winning scroll.

Answer:

Marty picked the winning scroll.

Step-by-step explanation:

Based on the rule given in other to win, the winning scroll is that which has integer value written on it.

An integer simply means a number devoid of fraction. Hence, it could be a positive or negative while number.

Given that the students pick below :

Cecily = 6.7 (not an integer)

Marty = - 37 (integer)

Jon = 7/9 (not an integer)

The only scroll which meets the condition of being an integer is Marty's scroll ; Hence, she picked the winning scroll.

7 0
3 years ago
What is the slope of the line below
Elena-2011 [213]
Answer: m = 2
The formula for slope can be found by finding the difference in y between two values divided by the difference in x between the same two values. In this case, you would subtract 4 from 8 and 2 from 4, to get 4/2, or 2. The slope is represented by the variable m, so m = 2.
3 0
3 years ago
A desk is purchased for $277. Calculate it's worth after depreciating for 5 years if it's depreciation rate is 20% per year
Leni [432]
After 5 years it’ll cost around 90.767
6 0
3 years ago
If point A is located at (-3,-1) and there are 10 points between A and B, what could be the possible coordinates for point B?
Nataly [62]

Answer:

Step-by-step explanation:

By drawing the point (-3,-1) in the coordinate plane we find the graph shown below. Since there are 10 points between points A and B, we need to start at point A and then we have to move 11 units either to the right, to the left, up, or down .

1. MOVING TO THE RIGHT:

From point A, move 11 units horizontally to the right to come to point B:

(-3+11, -1) = (8, -1)

2. MOVING TO THE LEFT:

From point A, move 11 units horizontally to the left to come to point B:

(-3-11, -1) = (-14, -1)

3. MOVING UPWARD:

From point A, move 11 units vertically upward to come to point B:

(-3, -1+11) = (-3, 10)

4. MOVING DOWNWARD:

From point A, move 11 units vertically downward to come to point B:

(-3, -1-11) = (-3, -12)

So this are the basic movements you can get to find point B. You also can move diagonally upwards or downwards  in whose case you would find other four points. The graph below shows a red point which is A, and the other points are in black color and represent B.

7 0
4 years ago
Graph the line that has an x intercept (-3,0) and y intercept (0,-5)
Licemer1 [7]

Answer:

Step-by-step explanation:

Plot points at the given points and connect with a line.

6 0
4 years ago
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