What’s the answer, I will mark brainless
1 answer:
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Answer:
A model with 4 shaded sections and 6 unshaded sections.
A model with 40 shaded sections and 60 unshaded sections.
Step-by-step explanation:
Required:
Which models shows 40%
(a) 4 shaded and 6 unshaded
First, we calculate the total sections
The percentage of the shaded section is:
(b) 40 shaded and 60 unshaded
First, we calculate the total sections
The percentage of the shaded section is:
(c) 2 shaded and 8 unshaded
First, we calculate the total sections
The percentage of the shaded section is:
<em>Hence, (a) and (b) shows 40%</em>
-1/9+-5/9=
When you are adding a negative number, the operation turns into subtraction:
-1/9-5/9=
Really, it's just subtraction. The simplest form is -2/3, which is equal to -0.66667.
I hope this helps :)