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11Alexandr11 [23.1K]
3 years ago
6

Kevin had 13 coins in his pocket all of his quoins are either dimes or quarters when he ended his pockets Kevin found that he ha

d $2.05 how many dimes and quarters does he have
Mathematics
1 answer:
frez [133]3 years ago
7 0

Answer:

  • 8 dimes
  • 5 quarters

Step-by-step explanation:

If all were dimes, the total would be $1.30. It is $0.75 more than that.

Each quarter that replaces a dime adds $0.15 to the total, so there must be ...

  $0.75/$0.15 = 5

quarters.

Kevin has 8 dimes and 5 quarters in change.

_____

<em>Check</em>

8 × 0.10 + 5 × 0.25 = 0.80 + 1.25 = 2.05 . . . .  answer checks OK

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Given f(x) = 6x^4 – 10x^3 + 40x – 50, find f(2)
ASHA 777 [7]
F(x)=6x^4-10x^3+40x-50, plug 2 in for x
f(2)=6(2)^4-10(3)^3+40(2)-50
f(2)=12^4-30^3+80-50
f(2)=20735-27,000+80-50
f(2)=-6,235
4 0
3 years ago
The art teacher has 30 boxes of crayons with 16 cans in each box she gives the students 10 of the boxes to use explain how to fi
Mamont248 [21]
I'm going to assume you meant crayon instead of can:

First step is to find how many boxes she/he has left.

30 - 10 = 20 

So the teacher has 20 boxes left;

Now, knowing that each box has 16 crayons, then we simply multiply the 20 by 16 to find the total number of crayons left over:

20 x 16 = 320 

So the art teacher has 320 crayons left over.

Hope this helps!

3 0
3 years ago
A stack of 5 books welghs 9.5 pounds. If each book weighs the same amount, how much does each book weigh?​
Dafna11 [192]
9.5/5 = 1.9 lbs each
6 0
3 years ago
Please help
DedPeter [7]

Answer:

<h2>10</h2>

Step-by-step explanation:

Given the expression \sqrt{10} * \sqrt{10}. To find the product of this two values, the following steps must be followed.

According to one of the law of indices, \sqrt{a} = a^{\frac{1}{2} }

\sqrt{10} * \sqrt{10}\\= 10^{\frac{1}{2} }* 10^{\frac{1}{2} }\\= 10^{\frac{1}{2}+\frac{1}{2}}\\ = 10^{1} \\= 10

The product is 10

3 0
3 years ago
Read 2 more answers
What is the value of x? Enter your answer in the box. Ft Triangle V T K with segment T Y such that Y is on segment V K, between
Yanka [14]

Answer:

x=47 feet

Step-by-step explanation:

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\frac{22}{YK}=\frac{77}{87.5}

YK=\frac{22{\times}87.5}{77}

YK=25 feet

Now, X=VY+YK

Substituting the values, we get

X=22+25

X=47 feet

6 0
3 years ago
Read 2 more answers
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