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Umnica [9.8K]
4 years ago
8

PLEASE HELP!!!

Mathematics
2 answers:
patriot [66]4 years ago
4 0
Okay since this triangle is an isosceles triangle line AC and BC are congruent, meaning they’re equal length. Therefore, the equation to solve for X is...
20 = 3x - 7
27 = 3x
X = 9
Incase you want to find what line BC equals you just plug x into the equation so..
3(9) - 7 = 20
Westkost [7]4 years ago
3 0

Answer:

x=9

Step-by-step explanation:

steps shown in picture

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1. COST Mr. Rivera wants to purchase a riding lawn
antiseptic1488 [7]

Answer:

p(x) = 0.85x

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Step-by-step explanation:

If the marked price is $x, then the function p(x) that gives the price of the riding lawn mower after 15% discount will be

p(x) = x(1 - \frac{15}{100}) = 0.85x

where x is the marked price.

Now, the function that gives the total cost with sales tax will be given by

t(x) = x(1 + \frac{6.5}{100}) = 1.065x

where x is the discounted price.

Therefore, the composite function that gives the total cost of the riding lawn mower on sale is given by

(t o p)(x) = 1.065(0.85x) = 0.9x ............ (1)

where x is the marked price.

If the marked price x = $3000, then Mr. Rivera has to pay for the riding lawn mower, from equation (1),

(t o p)(3000) = 0.9 × 3000 = 2700 dollars. (Answer)

8 0
4 years ago
If the rectangle below is enlarged using a scale
san4es73 [151]

Answer:

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Step-by-step explanation:

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