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tester [92]
3 years ago
13

Banners at the store were on sale for $3 off the regular price. Billy bought 4 banners on sale and paid a total of $20. Write an

equation to determine the regular price of one banner.​
Mathematics
1 answer:
zimovet [89]3 years ago
3 0

Answer: if it's -3 of the regular price you add 3 which would give you 6. Billy is wrong because he only added one to 3

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Answer:

<em>The base is 24 cm long.</em>

Step-by-step explanation:

<u>Equations</u>

Let's call

b= base of the triangle

h=height of the triangle

The base is 9 cm longer than the height, thus:

b = h + 9

The area of the triangle is:

\displaystyle A=\frac{bh}{2}

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