4 years ago

Do anybody know about the rainbow strategy in math pls help me under stand teach me pls

1 answer:

xenn [34]4 years ago

3 0

i dont know if i can explain it right, but its kinda just like matching numbers to an equation with other numbers

google videos can explain it better and show

hope this help :)

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Burka [1]

Answer:

Let's denote:

Number or gifts cost 20 = x

Number or gifts cost 22.5 = y

Then, we have:

x + y = 10

20x + 22.5y = 217.5

=> 20(10 - y) + 22.5y = 217.5

=> 2.5y = 17.5

=> y = 7 (Number or gifts cost 22.5)

=> x = 10 - 7 = 3 (Number or gifts cost 20)

Hope this helps!

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3 years ago

Lena [83]

Answer:

Its A

Step-by-step explanation:

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3 years ago

shusha [124]

He should add 20 cups of flower

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andrey2020 [161]

The function has a domain that goes from [0,∞]

And a range that goes from [-∞,0]

(See attached graph)

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3 years ago

Grace [21]

Answer:

Yes, Sienna is correct because 6 times 2 is 12 and 3 times 4 is 12.

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3 years ago