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faust18 [17]
3 years ago
5

Sara has swimming lessons every fifth day and driving lessons every third day. If she had a swimming lesson and drving lesson on

May 5, when will be the next date on which she has both swimming and driving lesson?
She will have both driving and swimming lessons on May
Mathematics
1 answer:
allochka39001 [22]3 years ago
3 0

Find the least common multiple of 3 and 5:

3: 3,6, 9,12,15,18,21

5: 5, 10, 15, 20

The least common multiple is 15. This means every 15 days they will be the same day.

Add 15 days to May 5:

5 + 15 = 20

The next day would be May 20

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A principal of $950 is invested in an account at 7% per year simple interest. What is the account total after 5 years.... ANSWER
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Its A because you have to find 7 percent of 950. x/950=7/100. then x equals 66.5. multiply that by 5 years. the add that number to $950.

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Jada bought $53 worth of snacks. She used a 10% off coupon. She then paid 8% tax on the original amount. What is the total she p
Montano1993 [528]

Answer:

The amount which Jada paid after discount and tax is $ 51.64

Step-by-step explanation:

Given as :

The original price of snacks = $ 53

The price of snacks after applying 10% off coupon = 53 - 10% of 53

Or , The price of snacks after applying 10% off coupon = 53 ( \frac{100-10}{100} )

or, The price of snacks after applying 10% off coupon = 53 × 0.9 = $ 47.7

Now the tax applied on the original amount = 8 % of $ 53

or, the tax applied on the original amount = \frac{8}{100} × 53

or, , the tax applied on the original amount = \frac{424}{100} =$ 4.24

So The total paid amount = $ 47.4 + $ 4.24 = $ 51.64

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6 0
3 years ago
Solve the equation -9v – 9 = -27 for v.
sattari [20]

Answer:

v = -2

Step-by-step explanation:

-9v – 9 = -27

add 9 to each side

-9v – 9+9 = -27+9

-9v = -18

divide by -9

-9v/-9 = -18/-9

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4 0
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3 drinks and 2 hot dog costs 7.70 and 2 drinks and one hot dog is 4.55 system of equation on drink and one hot dog to the neares
Pepsi [2]

Answer:

Drink = 1.4

Hot dog = 1.75

x + y = 3.15

Step-by-step explanation:

Let drink = x ; hot dog = y

3x + 2y = 7.70 - - (1)

2x + y = 4.55 - - - (2)

From (2)

y = 4.55 - 2x - - - (3)

Put y = 4.55 - 2x in (1)

3x + 2(4.55 - 2x) = 7.70

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-x = 7.7 - 9.1

-x = - 1.4

x = 1.4

Put x = 1.4 in (3)

y = 4.55 - 2(1.4)

y = 4.55 - 2.8

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Drink = 1.4

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7 0
3 years ago
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