Distraibutiv peorpoty
a(b+c)=ab+ac
we have
3a+7+2(3+a)
distribute first
2(3+a)=6+2a
now we have
3a+7+6+2a
move like terms together
3a+2a+7+6
add lke terms
5a+13
Answer:
what do you need help with?
Step-by-step explanation:
4s + 5 = 19
First, subtract 5 from both sides. / Your problem should look like: 4s = 19 - 5.
Second, simplify 19 - 5 to 14. / Your problem should look like: 4s = 14.
Third, divide both sides by 4. / Your problem should look like: s =
.
Fourth, simplify
to
. / Your problem should look like: s =
which is the answer.
✰ <u>Concept</u><u> </u><u>Used</u><u> </u><u>:</u><u>-</u>
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In this question, we can clearly observer that the diagram shows a right angled triangle. And, we have been provided with the value of base, and the value of hypotenuse, using the pythagoras theorem, now we can easily find out the value of the perpendicular i.e. the value of the side h. According to the pythagoras theorem, square of hypotenuse is equal to the sum of square of perpendicular and square of side respectively. Therefore, square of side is equal to the difference of square of hypotenuse and square of perpendicular.
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✰ <u>Given</u><u> </u><u>Information</u><u> </u>:-
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- Hypotenuse = 22 ft.
- Base = 10 ft.
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✰ <u>To Find</u><u> </u><u>:</u><u>-</u>
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- The value of side or the perpendicular
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✰ <u>Formula</u><u> </u><u>Used</u><u> </u><u>:</u><u>-</u>
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✰ <u>Solution</u><u> </u><u>:</u><u>-</u>
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Thus, option B. 19.60 ft. is the correct option.
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Now to solve this equation you have to take the # of pencils (985) and subtract it from the # of pencils left
985-559=425
$26 pencils were sold