Ken spends 1/5 of his money on a dictionary. He gives $21 to his brother and has1/2 of his money left. How much money does Ken have left?

Answers

Answer 1

Answer: Ken has 1 of his money. He spends 1/5 so he still has 4/5 of the original amount of money. He has 4/5 and he spends $21and ends up with 1/2 of his money. 4/5 = 8/10 and 1/2 = 5/10.This means that $21 is 8/10-5/10 of his original amount of money. so $21 is 3/10 of his original amount of money. 21/3*10=70. His original amount of money is $70. This means that 1/2 of his money is $35. So Ken has $35 left.

Answer 2

Answer:

Answer:

Ken has 1 of his money. He spends 1/5 so he still has 4/5 of the original amount of money. He has 4/5 and he spends $21and ends up with 1/2 of his money. 4/5 = 8/10 and 1/2 = 5/10.This means that $21 is 8/10-5/10 of his original amount of money. so $21 is 3/10 of his original amount of money. 21/3*10=70. His original amount of money is $70. This means that 1/2 of his money is $35. So Ken has $35 left.

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Step-by-step explanation:

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Answer:

9 D and 10 B

Step-by-step explanation:

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The school wants to order a new countertop for the teacher’s lounge. The shape of the countertop that they are replacing is shown below.A countertop can be broken into 2 rectangles. 1 rectangle has a base of 70 inches and height of 20 inches. The other rectangle has a base of 20 inches and height of 30 inches.
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Answers

Answer:

$1,500

Step-by-step explanation:

70*20 is 1,400, and 20*30 is 600. Those together make 2,000 sq. in. Multiply that by 0.75 and you get $1,500. Hope this helps!

Answer:

$1,500

Step-by-step explanation:

Factoring Trinomials 25a^2+20ab+4b^2
If you don't understand I can send you a picture of the problem. :)

Answers

25 a² + 20 ab + 4 b²

for formula $a^x+bx^ky^k+cy ^(2k )$ find u,v such that: u.v = a

and u+v = b then group according to $(ax ^(2k) +ux^ky^k)+(vx^ky^k+cy ^(2k) )$

= $(25a^2+10ab)+(10ab+4b^2)$

factor out 5a from : $25a^2+10ab : 5a(2b+5a)$

factor out 2b from : $10ab+4b^2: 2b(2b+5a)$

= $5a(2b+5a) + 2b(2b+5a)$

factor out : $(5a+2b)$

= $(5a+2b)(5a+2b)$

Refine:

$(2b+5a)^2$

hope this helps!.

One bag holds 12 bolts.Several bags filled with bolts are packed into a box and shipped to the factory. The box contains a total amount of 2,760 bolts. How many bags of bolts are in the box?

Answers

To do this, divide 2,760 by 12. This gives you 230. There are 230 bags of bolts in the box.

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Answers

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What does it mean to get a 150% salary raise? Explain in words and then give an example showing a calculation.

Answers

Answer: 150% salary raise means that there is a increment in the salary of 150%.

Step-by-step explanation:

Let Marina is getting a salary of $4500 after working as a teacher in a school. She has got 150% salary raise this month.

Then her new salary = $4500+150% of $4500

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Giving a 150% salary raise would mean that your salary is going up by 150% meaning if you have a 46,000 salary, the raise would make it to where your salary is now going to be 69,000. 46,000*150%=69,000 or 46,000*1.5=69000

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