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3 years ago

0.8+0.8=0.6k+0.9 What is k?

Mathematics

2 answers:

miv72 [106K]3 years ago

7 0

Simplify

0.8 + 0.8 = 0.16

0.16 = 0.6k + 0.9
-0.9

0.7 = 0.6k
0.6k/0.6 = 0.7/0.6
k = 1 and 1/6

cluponka [151]3 years ago

6 0

.6k+.9=1.6
.6k=.7
k=7/6= 1 1/6
k= 1 1/6
Hope this helps.

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Second option: $2x^2=6x-5$

Fourth option: $-x^2-10x=34$

Step-by-step explanation:

Rewrite each equation in the form $ax^2+bx+c=0$ and then use the Discriminant formula for each equation. This is:

$D=b^2-4ac$

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Let x lbs be the amount of sugar in the syrup. Then 5-x lbs is the amount of water in this syrup.

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