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Ipatiy [6.2K]
2 years ago
15

The exchange rate between dollars ($) and pounds (£) is $1 = £0.65 . The exchange rate between euros (€) and pounds is €1 = £0.7

4 . Khan changes €520 into pounds. He spends £260 and then changes the rest into dollars. Work out how many dollars he receives​
Mathematics
1 answer:
ivolga24 [154]2 years ago
5 0

Answer:

€520=£442.83

=£442.83-£260

=£182.83 into dollars=$251.52

Therefore he receives $251.52

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A school librarian ordered new books for the library. Of the new books ordered 1/3 are science 2/5 are biography and the rest of
oee [108]

Answer: 4/15

Step-by-step explanation:

1/3= 5/15

2/5= 6/15

5+6=11 So, 11/15

15-11=4

Meaning that there are 4/15 of the books are fiction

4 0
2 years ago
A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in t
maks197457 [2]

Answer:

  • 16.45 m
  • 121.7°

Step-by-step explanation:

a) The Pythagorean theorem is used to find the length of the hypotenuse of a right triangle from the the lengths of the legs:

  c² = a² + b²

  c = √(a² + b²) = √(13.4² +9.54²) ≈ 16.45 . . . meters

____

b) Using an appropriate vector calculator, you can find the sum of the given forces to be ...

  100∠140° +200∠70° +160∠250° = 119.733∠121.704°

The forces have a resultant equivalent to a force at 121.7°.

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If you're calculating this by hand, you can add the components of the forces:

  a∠b = (a·cos(b), a·sin(b))

  100∠140° ≈ (-76.604, 64.279)

  200∠70° ≈ (68.404, 187.939)

  160∠250° ≈ (-54.723, -150.351)

(Values are shown rounded here. You never round intermediate calculations, but maintain full calculator precision until the final answer.) Then the sum of these forces is approximately ...

  resultant ≈ (-62.924, 101.866)

The (second quadrant) angle of this resultant is ...

  angle = arctan(101.866/-62.924) ≈ 121.7°

5 0
3 years ago
5/7 = y/6<br> Solve the following proportion for y<br> Round your answer to the nearest tenth
RUDIKE [14]

Answer:

The value of y = 4.3

Step-by-step explanation:

It is given that,

5/7 = y/6

<u>To find the value of y</u>

We have, 5/7 = y/6

(5 * 6) = (y * 7)

y * 7 = 5 * 6

y = (5 * 6)/7

 = 30/7

 = 4.29

 ≈ 4.3

Therefore the correct answer, the value of y = 4.3

4 0
3 years ago
Simplify : -2(3v -6) <br><br>with steps too please​
Sauron [17]

Answer:

-6v - 12

v = -2

Step-by-step explanation:

Simplify:

  1. Apply the rules of the distributed property by multiplying -2 and 3v and -2 and -6: -6v - 12

Solve:

  1. Now that we have our simplified form, we can find what v is. First divide each side by -6 to cancel out the -6 next to v. It should now look like this: v = -2
5 0
2 years ago
Lois bought clothing at a store. She did not have enough in her bank account to pay for the purchase. After receiving the bill a
fomenos
<span>Lois used a credit card to make the purchase. 

One can't purchase an item that costs more than the balance in a debit card. The debit card is equivalent to cash on hand. You can only spend what you have. 

The credit card is equivalent to a loan. You don't have the money as of the moment but when you use the credit card, you owe the issuing bank the amount you've put on credit. The bank will pay the merchant and you will pay the bank. Interest is an additional expense when you pay your bill beyond the due date. The interest is applied on the amount outstanding upon the payment due date. </span>
8 0
3 years ago
Read 2 more answers
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