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Ann [662]
3 years ago
13

An online music club sells compact discs for $13.95 each plus $1.95 shipping and handling per order. If Maria's total bill was $

85.65, how many compact discs did Maria purchase?
Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
6 0
The equation is 13.95x+1.95=85.65
The answer is 6 compact discs.
Zolol [24]3 years ago
4 0

Answer:

6 compact discs.

Step-by-step explanation:

The price of the each compact disc = $13.95

Shipping and handling per order = $1.95

Maria's total bill was = $85.65

Let Maria purchased 'x' compact discs.

13.95x + 1.95 = 85.65

13.95x = 85.65 - 1.95

13.95x = 83.70

x = \frac{83.70}{13.95}

x = 6

Maria purchased 6 compact discs.

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Yassar has purchased a $30,000 car for his business. The car depreciates at 30%
fiasKO [112]

Answer:

A

Step-by-step explanation:

30% of 30000 is 9000, 30000-9000=21000 (1 year)

30% of 21000 is 6300, 21000-6300=14700 (2 years)

30% of 14700 is 4410, 14700-4410= 10290 (3 years)

30% of 10290 is 3087, 10290-3097= 7203 (4 years)

30% of 7203 is 2160.9, 7203-2160.9= 5042.1 (5 years)

5 0
2 years ago
If x=3+root8 and y =3- root 8 find 1/x^2+1/y^2
KonstantinChe [14]

Answer:

34

Step-by-step explanation:

x=3+√8

y =3-√8

now,

1/x^2+1/y^2

=1/(3+√8)² + 1/(3-√8)²

= [(3-√8)²+(3+√8)²] / (3+√8)²(3-√8)²            [L.C.M  = (3+√8)²(3-√8)² ]

=[(3-√8+3+√8)²-2(3-√8)(3+√8) ] / [(3+√8)(3-√8)]²  

=[6²-2.(3²-√8² )] / (3²-√8²)²                 [ a²+ b²=(a+b)²-2ab]

=[36-2(9-8) ]/ (9-8)²

=[36-2.1] / 1²

=34

3 0
3 years ago
A local little league has a total of 85 players, of whom 40% are left-handed. How many left-handed players are there?
Mkey [24]

Answer:

34 players

Step-by-step explanation:

40.00%

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3 0
2 years ago
Can someone help me please will give brainlist
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Answer:

A) it converges

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C) 2000

d) The sum is getting smaller and smaller

Step-by-step explanation:

Formula: a_n+a_1*r^(r-1)

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(1000*((0.5^30)-1))/(0.5-1)=2000

8 0
1 year ago
The speed limit on a road in Canada is 70 kilometers per hour. What is this speed in miles per hour? Round your answer to the ne
Marina CMI [18]

Answer:

43 miles/hr

Step-by-step explanation:

Use a conversion factor from km to miles while keeping track of your units:

70 km/hr x 0.62 miles/km = 43 miles/hr

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