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slega [8]
2 years ago
13

5 (a)

Mathematics
2 answers:
jeyben [28]2 years ago
7 0

Answer:

25

Step-by-step explanation:

We can have a set of equations for this. Let x be the number of 1 pound coins and y be the number of 2 pound coins.

We can set an equation like this:

Since she has twice as many 1 pound than 2 pound coins, we can set this equation:

x=2y

Since the worth of the coins add up to 100:

(1 pound)*x+(2 pounds)*y=100pounds

x+2y=100

We can substitute x=2y

2y+2y=100

y=25

Therefore we have 25 2 pound coins

andrey2020 [161]2 years ago
4 0

Answer:

25

Step-by-step explanation:

25 2 euro coins*2=50

50 1 euro coins*1=50

50+50=100

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Elza [17]
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6 0
3 years ago
Kali had a total of 212121 balloons at her birthday party. The ratio of blue balloons to green balloons is shown in the tape dia
Misha Larkins [42]

Answer:

Blue balloons = 12

Step-by-step explanation:

Total no of balloons = 21

Let us assume that the ratio of blue balloons to green balloons is 4:3.

Let there are 4x blue balloons and 3x green balloons.

ATQ,

4x+3x = 21

7x = 21

x = 3

Blue balloons = 4x

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Hence, she will have 12 blue balloons at her party.

5 0
2 years ago
I’m struggling to answer this question on my test, can someone explain it to me?
Flauer [41]
Correct answer is Option A: 18/48 = 21/56

You’ll have to divide the numerator by the denominator of each fraction to see whether they have the same quotient:

18/48 = 0.375
21/56 = 0.375


The other options are not proportional.

B) 20/28 = 15/18:

20/28 = 0.714
15/18 = 0.833

Thus, 20/28 ≠ 15/18

C). 3/5 = 13/10
3/5 = 0.6
13/10 = 1.3

Hence, 3/5 ≠ 13/10

D) 7/10 = 10/7
7/10 = 0.7
10/7 = 1.43

Thus, 7/10 ≠ 10/7

These solutions prove that the correct answer is A) 18/48 = 21/56

Please mark my answers as the Briainliest if you find my explanations helpful :)
4 0
2 years ago
Can someone please answer this for me it's for a homework assignment.
Ulleksa [173]
Slope as an (improper fraction)-9/7, it can’t be simplified
5 0
3 years ago
When five times a number is decreased by 4, the result is 26.<br> What is the number?
ikadub [295]

Answer:

5 x 6 = 30 - 4 = 26

so the answer is 6

Step-by-step explanation:

8 0
3 years ago
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