Answer:
28 inches
Step-by-step explanation:
P = 2 (a + b) = 2 · (6 + 8) = 28
Answer:
195 sq cm
Step-by-step explanation:
15 x 15 = 225
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3(8) + 2(3) = 30
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225 - 30 = 195 sq cm
I think the answer would be 2.05 because 6.15/3 is 2.05
5/3+2/5=25/15+6/15=31/15=2 1/15
2 1/15 or 31/15
Answer:
15 answers
Step-by-step explanation:
To solve this question we need to set up an equation.
Let's name the number of incorrect answers x.
<u>We can set up an equation that's essentially:</u>
(Points for correct answer)*(number of correct answers)+(points for incorrect answer)*(number of incorrect answers)=final score
When we plug in our numbers and variables it looks like this:
5(3)+(-2x)=-15
Simplify
15-2x=-15
Subtract 15 from both sides
-2x=-30
Divide both sides by -2
x=15
This means Smitha attempted 15 wrong answers, and that there were 18 questions in total.
