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Sergio039 [100]
3 years ago
9

Which of the following expressions could give the total amount of a $45 restaurant bill with a 15% tip added on?

Mathematics
1 answer:
vazorg [7]3 years ago
4 0

Answer:

$51.75

Step-by-step explanation:

Given

Total amount of bill, x= $45

Tip Percent=15%

⇒15% on $45 is to be paid extra as tip, other than the already paying $45

⇒Tip=\frac{15}{100}\times x=\frac{15}{100}  \times45=6.75

So <em>total amount to be paid</em>= Bill+ tip

= x + tip=x+\frac{15}{100} x=1.15x=1.15\times45

=$51.75

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What are the possible values of x if (4c-5)^2= 49?
kykrilka [37]

Answer:

c = 3                              c = -1/2

Step-by-step explanation:

(4c-5)^2= 49

Take the square root of each side

sqrt((4c-5)^2)= ±qrt(49)

4c-5 = ±7

Separate into two equations

4c-5 = 7           4c-5 = -7

Add 5 to each side

4c-5+5 = 7+5          4c-5+5 =-7+5

4c =12                         4c = -2

Divide by 4

4c/4 = 12/4                     4c/4 = -2/4

c = 3                              c = -1/2

7 0
2 years ago
Read 2 more answers
Janine worked 15 hours last week. One job as a clerk in a sporting goods store paid her ​$8.47 per​ hour, while her job giving p
lorasvet [3.4K]

Answer:

she worked 9 hours at sporting goods store and 6 hours on piano lessons.

Step-by-step explanation:

total hours=15

8.47x + 17(15-x) = 178.23

8.47x + 225 - 17x = 178.23

225 - 178.23 = 17x - 8.47x

76.77 = 8.53x

x = 76.77 / 8.53

x = 9

therefore she worked 9 hours at sporting goods centre and the remaining hours (15-9) giving piano lessons.

4 0
3 years ago
Find y if the line through (-2,4) and (6,y) has a slope of -2
Mnenie [13.5K]
-2=y-4/6+2
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Hey lol help lol
Gwar [14]

Answer:

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Step-by-step explanation:

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What greater 1/2 or 1/12
laila [671]

Answer: 1/2

Step-by-step explanation: To find out what fraction is greater, notice that the fractions that we're comparing in this problem have different denominators.

When fractions have different denominators, they're called unlike fractions.

To compare unlike fractions, we must first get a common denominator. The common denominator of 2 and 12 will be the least common multiple of 2 and 12 which is 12.

To get a 12 in the denominator of 1/2, we multiply the numerator and the denominator by 6 which gives us 6/12.

Notice that 1/12 already has a 12 in the denominator so now we are comparing like fractions since both of them has a 12 in the denominator.

To compare like fractions, we simply look at the numerators. Since 6 is greater than 1, this means that 6/12 is greater than 1/12.

Therefore, 1/2 is greater than 1/12.

3 0
3 years ago
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