X% of 4 = x*4/100 = 0.04x

y% of 5 = x*5/100 = 0.05y

x% of 4 + y% of 5 = 0.04x + 0.05y

How you express a number, n, as percentage of 11?: [n/11]*100= 9.10n %

Then make n = 0.04x + 0.05y

9.10n %= 9.10[0.04x + 0.05y] %= (0.3656x + 0.455y)%

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4 0

4 years ago

Find the value of 9 in 6493

ankoles [38]

The value of 9 is 90 because it is in the tens place.

8 0

4 years ago

Does anyone know the answer???

nikitadnepr [17]

X= -1. That’s the only one that makes sense

8 0

3 years ago

Factor completely 12t ^8-75t^4

meriva

$12t^8-75t^4=3t^4\cdot4t^4-3t^4\cdot25=3t^4(4t^4-25)\\\\=3t^4[(2t^2)^2-5^2]\\\\use\ a^2-b^2=(a-b)(a+b)\\\\=3t^4(2t^2-5)(2t^2+5)=3t^4[(t\sqrt2)^2-(\sqrt5)^2](2t^2+5)\\\\=3t^4(t\sqrt2-\sqrt5)(t\sqrt2+\sqrt5)(2t^2+5)$

5 0

3 years ago