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3 years ago

B. The total cost (1) after 8% sales tax is added to an item's price (p): 1.08p =

Mathematics

1 answer:

scoundrel [369]3 years ago

6 0

Answer:

Step-by-step explanation:

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10/6=15/x solve for x

Basile [38]

I believe that x=9. I used cross multiplication. First, I multiplied 6 by 15. Second, I divided this product of 90 by 10. The quotient is 9.

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3 years ago

A restaurant menu has five kinds of soups, seven kinds of main courses, six kinds of desserts, and five kinds of drinks. If a cu

ryzh [129]

Answer: 1050

Step-by-step explanation:

Number of combinations of selecting r things out of n = $^nC_r=\dfrac{n!}{r!(n-r)!}$

such that $^nC_1=n$

Given: A restaurant menu has 5 kinds of soups, 7kinds of main courses, 6 kinds of desserts, and 5 kinds of drinks.

If a customer randomly selects one item from each of these four categories, then by fundamental counting principle , the number of different outcomes are possible = $^5C_1\times \ ^7C_1\times\ ^6C_1\times\ ^5C_1 =5\times7\times6\times5=1050$

hence, total number of outcomes = 1050

3 0

3 years ago

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Kelly is knitting a scarf for her brother in it to 1/3 hour to knit 3/4 foot of the scarf how fast is Kelly in knitting feet per

Naily [24]

I think the answer is 2.25 or 2 and 1/4.

You divide 3/4 by 1/3 and get 2.25 or 2 and 1/4.

I don't know if this is right, I hope it is, have a good day. c;

6 0

3 years ago

What is the largest perfect square factor of 18?

svet-max [94.6K]

The largest perfect square factor of 18 is 9.

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3 years ago

Homework help, one of the few I have

Alex73 [517]

Answer:

x=4 and the solution is not extraneous

Step-by-step explanation:

$\sqrt{2x+1}=3 \\\\2x+1=9 \\\\2x=8 \\\\x=4$

This solution is not extraneous, because plugging it back in you get:

$\sqrt{2(4)+1}=3 \\\\\sqrt{9}=3 \\\\3=3$

Hope this helps!

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3 years ago

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