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andrew11 [14]
3 years ago
12

Jeff has 30 problems to do for math homework, and he fhinshed 60% of them before play practice. How many problems did he finish

before play practice?
Mathematics
1 answer:
wlad13 [49]3 years ago
3 0
To find the percentage you need to multiply 60*30 and then divide by 100 or just multiply 0.6*30
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(3x^2+2x-3)(x-1)<br> please help
cupoosta [38]

Answer:

Step-by-step explanation:

(3x^2 + 2x - 3)(x-1)

Expanding the brackets

x(3x^2 +2x - 3) -1(3x^2 +2x -3)

3x^3 +2x^2 -3x -3x^2 -2x + 3

3x^3 - x^2 - 5x + 3

5 0
3 years ago
Can you help me with this question plzz?​
Dominik [7]

Answer: The answer is 96 wizards.

Step-by-step explanation:

So what I like to do is fraction formatting.

you start with x/blank \frac{blank}{120} and \frac{80}{100} you do cross multiply divide

and multiple 120 by 80(=9600) and divide by 100 (=96) because wizards are 20% less of the population than goblins, so they are equivalent to 80% of the goblins! Hope this helped!

7 0
3 years ago
To be considered similar, two polygons must have corresponding sides that are in proportion.
Agata [3.3K]
I think the correct answer is true. <span>To be considered similar, two polygons must have corresponding sides that are in proportion. S</span><span>imilar polygons is referred as congruent polygons. Two figures are said to be congruent when they have the same shape and size or if one object is a mirror image of the other object. </span>
4 0
3 years ago
A textbook weighs 2.5 pounds. How many kilograms does the textbook weigh? Round your answer to the nearest tenth of a pound. 1 k
Alenkasestr [34]
The solution to the problem is as follows:

Given: 2.5 lb

Asked: 2.5 lb -----> kg

Answer:

2.5 lb * ( 1 kg/2.2 lb) = 1.1 kg

Therefore, the weight of the book in kg is 1.1 kg.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
HELP ME HAVING TROUBLE!!!
levacccp [35]
It's A because 6^4=6×6×6×6
3 0
3 years ago
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