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AnnyKZ [126]
3 years ago
8

Help!!! MATHS QUESTION I WILL GIVE YOU A HEART!!!

Mathematics
1 answer:
Novay_Z [31]3 years ago
5 0

Answer:

bottom diagram

15 green

Step-by-step explanation:

5 green for every 2 blue

The bottom diagram matches that situation

5 green  10 green  15 green

2 blue      4 blue      6 blue

-----          ---------       ----------

3 diff         6 diff        9 diff

When she paints 15 green and 6 blue she has painted 9 more green than blue

You might be interested in
The population of a small industrial town was 12 910 in 2000. Each year, the population
balandron [24]

The population in the year 2020 is 4628

<h3>How to determine the population?</h3>

The given parameters are:

Initial, a = 12910

Rate, r = 5%

Since the population decreases, then we make use of an exponential decay function.

This is represented as:

f(n) = a * (1 - r)^n

So, we have:

f(n) = 12910 * (1 - 5%)^n

Evaluate the difference

f(n) = 12910 * 0.95^n

2020 is 20 years from 2000.

So, we have:

f(20) = 12910 * 0.95^20

Evaluate

f(20) = 4628

Hence, the population in the year 2020 is 4628

Read more about exponential functions at:

brainly.com/question/14355665

#SPJ1

6 0
2 years ago
Find last year’s salary if, after a 3% pay raise, this year’s salary is $30,900
Liono4ka [1.6K]
Your answer is $30,000.
The way I have answered this is quite strange, but I'll do my best to explain it. So because we know that $30,900 is 3% than last year, we can call it 103%. This allows us to form a ratio and therefore find 100%.
30,900 : 103
÷ 103
300 : 1
× 100
30,000 : 100
Which means $30,000 is 100%, or 3% less than $30,900. I hope this helps! Let me know if it was confusing or anything :)
5 0
3 years ago
Read 2 more answers
The diameter of a semicircle is 2 feet. What is the semicircle's perimeter?
Mice21 [21]

Answer:

11/7 feet

Step-by-step explanation:

the perimeter of a circle is πr²

and a semi circle is half of a circle then the formula would be 1/2 πr²

1/2×22/7×1 (it is 1 because we have divided the diameter to get radius

so we derived at 11/7

6 0
2 years ago
Pls somebody solve this I still don’t understand it yet :/ please
Fofino [41]

Answer:

first blank 39, second 9/39 i think, and third 351

Step-by-step explanation:

i haven't done something like this in a long time so i dont know if its completely correct or correct at all

8 0
2 years ago
Read 2 more answers
Needs help answering
konstantin123 [22]

Answer:

26

Step-by-step explanation:

the answer is 26

6 0
2 years ago
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