3 years ago

15 books to 21 books

Mathematics

1 answer:

RideAnS [48]3 years ago

4 0

Answer:

15/21

i dont know if if you want it to be simplifed

Step-by-step explanation:

You might be interested in

Function,d(r) = 0.034r , is used to convert Russian rubles in United States dollars, and function, e(d) = 0.76d , is used to con

Dahasolnce [82]

We have two functions, one which converts rubles to USD and one which converts USD to euros. If we want to convert from rubles to euros, we could just convert it to USD and then euroes.

2000₽ ⇒ USD
$d(r)=0.034r\\d(2000)=0.034(2000)=68$

$68 USD ⇒ €
$e(d)=0.76d\\e(68)=0.76(68)=\boxed{51.68}$

Extra: If you wanted, you could create a function to convert rubles into euroes.
Just substitute that 0.034r for d in e(d) = 0.76d and... $e(r)=0.76(0.034r)=0.02584r$

7 0

3 years ago

THE SUM OF THE DIGITS OF A CERTAIN TWO-DIGIT NUMBER IS 13. REVERSING ITS DIGITS INCREASED THE NUMBER BY 9. WHAT IS THE NUMBER?

KonstantinChe [14]

Answer:

Step-by-step explanation:

Adding 6 and 7 together equate to 13. You then switch the digits of 67 to 76 and the number is increased by 9.

5 0

3 years ago

Please help with questions 1 and 2

Georgia [21]

Answer:

a) 4^1

b) 9^1

a) 9^6

b) 4^6

hope it helps

5 0

2 years ago

if a towel and a washcloth together cost £2.50 and the towel costs £1.20 more than the washcloth, how much does the washcloth co

pantera1 [17]

Answer:

$0.65

Step-by-step explanation:

x=cost of washcloth

x+1.20=cost of towel

Now,

x+x+1.20=2.50

2x=1.30

x=0.65

So, cost of washcloth is $0.65

5 0

3 years ago

Find each function value.

Naddik [55]

1. 35
2. 21
3. 11

Just substitute.

8 0

3 years ago

15 books to 21 books​

15 books to 21 books