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djverab [1.8K]
3 years ago
11

Matt gives half of his books to the local library and kept the other half.His best friend gives him 3 more books.He now has 57 b

ooks.How many did he have to start.
This is a algebra question haves to have a main first equation
Mathematics
1 answer:
Liula [17]3 years ago
6 0
Just work it backwords 57-3=54 then because this is hakf his original amount of books multioky by 2 and you get the answer 108. I hope this helped. :)
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Please give Examples for real life examples for expressing very small number sin standard form.
Digiron [165]
Scientific notation is a system for expressing very large or very small numbers in a compact manner. It uses the idea that such numbers can be rewritten as a simple number multiplied by 10 raised to a certain exponent, or power.
3 0
2 years ago
Someone please help!!! VERY URGENTTT
katovenus [111]

Answer:

1/9

Step-by-step explanation:

For these questions, you have to first find the probability of each event individually occuring then multiply these two probabilities together. So, lets first find the probability of Event 1 occuring (rolling a number higher than 1). On a dice, we know that there are 6 numbers (1, 2, 3, 4, 5, 6) of which the numbers 5 and 6 are higher than 4. Therefore, the proability of Event 1 occuring is 2/6 = 1/3. Now, we find the probability of event 2 occuring.

We know that there are 3 options on the spinner that the arrow can land on. It is also evident that they all have the same chance of landing on it. Therefore, the possibility is 1/3.

Now that we have both of our probabilities, we multiply the answer together.

Therefore, our answer will be:

1/3 x 1/3, which gives 1/9.

6 0
3 years ago
Please help me find the slope of the graph thank you a, b, c, d (picture)
alisha [4.7K]

Answer:

D: -75 the balloon is descending at a rate of 75ft per minute

Step-by-step explanation:

To find the slope of any graph, take two points on the graph and subtract them y/x so to get this answer is used the points (0,450) and (2,300) and subtracted the y-values over the x-values

450-300=150

0-2=-2

150/-2 = -75

that is the slope and since it is negative and the slope itself is a diagonal line going towards the x-axis you know it’s descending.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
Please answer quickly and explain how!ToT<br><br><br> 276 is what percent of 92?
Harrizon [31]
Answer: 276 is 300% of 92.

Explanation: 279 is 3x of 92. 92x3 =279 3= 3.00 -> 300%

Hope this helps
5 0
2 years ago
Bars of soap come in packages of 6 and packages of 20. the 6-bar pack costs $7.86, and the 20-bar pack costs $25. which is the b
sattari [20]
6 Pack Price:
divide total price by number of bars in the pack

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20 Pack Price:

=$25 ÷ 20 bars
=$1.25 per bar


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Hope this helps! :)
5 0
3 years ago
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