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2 years ago

Brandon buys a radio for $46.07 in a state where sales Tax is 7%

Mathematics

1 answer:

Radda [10]2 years ago

8 0

Answer:

29.50

Step-by-step explanation:

Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost.

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What is the probability that a phone number generated using the digits 1, 2, 2, 4, 5, 5, 6, and 2 is the number 654-5222

pochemuha

Answer:

336 ways

Step-by-step explanation:

The digits are 1, 2, 2, 4, 5, 5, 6, and 2 that is total eight digits.

The number 654-5222 contains 7 digits.

So, we have find The number of permutations for choosing 7 digits from 8 digits given above.

This can be done in following ways

$\frac{8!}{3!\times2!}$ = $\frac{40320}{6\times2}$

= 336 ways

7 0

2 years ago

I need help with d please.

m_a_m_a [10]

Find the volumes of each separate rectangular prism, (top) 9 x 4 x 12 = 432 cubic meters, (bottom) 10x2x2 = 40 cubic meters, and then add them together to get the overall volume, 40+432 = 472 cubic meters. the strategy is using length times width times height, LxWxH.

8 0

2 years ago

I know the answer but I need to explain how to get the answer. Please help❤️

kondaur [170]

Answer:

730, 735, 740

Step-by-step explanation:

Let the three consecutive multiples of 5 be, x, x+5 and x+10

Given,

x + x+5 + x+10 = 2205

3x + 15 = 2205

Subtract 15 from both sides,

3x = 2205 - 15

3x = 2190

Divide both sides by 3,

x = 2190/3 = 730

So, x= 730

x+5 = 735

x+10 = 740

5 0

2 years ago

5a+2a(5-b)= Simplify the expression

Natali [406]

5a+2a(5−b)

Distribute:

=5a+(2a)(5)+(2a)(−b)

=5a+10a+−2ab

Combine Like Terms:

=5a+10a+−2ab

=(−2ab)+(5a+10a)

=−2ab+15a

6 0

2 years ago

Read 2 more answers

How many liters of pure water should be mixed with a 18-L solution of 80% acid to produce a mixture that is 90% water?

Sphinxa [80]

126 liters of pure water should be added

Solution:

Let "x" be the liters of pure water

Then, 18 + x is the liters of final solution

18 Liter solution of 80% acid, which means 100 - 80 = 20 % of water is used

Pure water is 100%

Then according to question, we can say,

"x" liters of pure water 100 % is mixed with a 18 liter solution of 20 % water to produce a mixture (18 + x) liter that is 90 % water

Thus we frame a equation as:

Equation:

water + water = water

$x \times 100\% + 18 \times 20 \% = (18+x) \times 90\%$

$x \times \frac{100}{100} + 18 \times \frac{20}{100} = (18+x) \times \frac{90}{100}\\\\Simplify\ the\ above\ equation\\\\x + 0.2 \times 18 = (18+x) \times 0.9\\\\x + 3.6 = 16.2 + 0.9x\\\\0.1x = 12.6\\\\Divide\ both\ sides\ of\ equation\ by\ 0.1\\\\x = 126$

Thus 126 liters of pure water should be added

8 0

3 years ago