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iris [78.8K]
2 years ago
14

Eva has £6.05 in her moneybox.

Mathematics
1 answer:
PIT_PIT [208]2 years ago
3 0

Answer:

11 of 20p, 22 of 10p and 33 of 5p

Step-by-step explanation:

Eva has 20p, 10p and 5p coins, total of £6.05 = 605p

Let 20p=x, 10p=y, 5p=z

<u>Then</u>:

  • 20x + 10y + 5z = 605
  • y : x = 2 : 1 ⇒ x= y/2
  • y : z = 2 : 3 ⇒ z= 3y/2

<u>Rewriting the first equation considering next two:</u>

  • 10y + 10y + 7.5y = 605
  • 27.5y = 605
  • y= 605/27.5
  • y= 22
  • x= y/2 = 22/2 = 11
  • z = 3y/2 = 3*11 = 33

<u>Answer:</u> 11 of 20p coins, 22 of 10p coins and 33 of 5p coins

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OFFER A is cheaper.

Step-by-step explanation:

Given,

OFFER A

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And

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To find which offer is cheaper.

<u>For OFFER A</u>

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He needs to buy 40÷(4×5) = 2 packets.

Total cost = £2.75 ×2 = £5.5

<u>For OFFER B</u>

For 4 Packets he needs to pay £2.52

He needs to buy 40 batteries.

He needs to buy 10 packets.

After discount he has to pay = £2.52 -(£2.52 ×\frac{1}{3}) = £1.68

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OFFER A is cheaper.

7 0
2 years ago
Hayden decided to take martial arts classes at his local gym. He pays $35 each month for his membership and $12 for every class
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Hayden had the membership for one month and took 6 classes.
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2 years ago
Type the correct answer in each box. Use numerals instead of words.
Dahasolnce [82]

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8 0
1 year ago
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Svetradugi [14.3K]

Answer:

The right answer is:

Option OB: f(1) = -9

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Step-by-step explanation:

Given sequence is:

-9, -2, 5, 12,...

Here the first number is f(1)

Common Difference:

Common difference is the difference between consecutive terms of an arithmetic sequence. It is denoted by d.

In the given sequence,

f(1) = -9

f(2) = -2

f(3) = 5

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Hence,

The right answer is:

Option OB: f(1) = -9

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7 0
2 years ago
Clara has a lawn in front of her house as mapped on the coordinate plane. She wants to plant a bed of flowers between the points
Hunter-Best [27]

Answer:

<em>Look Below In the Explanation</em>

Step-by-step explanation:

Point P has coordinates of (4,4) and point Q has coordinates of (4,-4).

Since both points have the same x-coordinates we can subtract point Q's y-coordinate from point P's y-coordinate.

I will set the equation up and try and figure this part by yourself. I hope you learned what to do from previous questions that are very similar to this that I answered.

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Hope that helps and maybe earns a brainliest!

Have a splendid day! :^)

3 0
2 years ago
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