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love history [14]
3 years ago
15

Rosita earns money by walking dogs after school and on the weekends . She walks Madeline every other day ,Buddy every forth day

, and Ernie every third day . Today she walked all thee dogs . What day did Rosita walk all three dogs?
Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
5 0

Answer:

  • <u><em>Rosita will walk all three dogs in 12 days.</em></u>

Explanation:

Madeline is walked every other day means every two days: 2.

Buddy is walked every fourth day: 4.

Ernie is walked every third day: 3.

You need to find the least common multiple (LCM) of 2, 4, 3.

Decompose each number into its prime factors:

  • 2 = 2
  • 4 = 2²
  • 3 = 3

The LCM is the product of the common factors and non common factors each raised to its the greatest power:

  • LCM = 2² × 3 = 12

Then, Rosita will walk all three dogs in 12 days.

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Temka [501]

Answer:

Here is the ans..hope it helps:)

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2 years ago
Fiona is pricing two bicycles one is 175 with 10% and the other is 225 with 35% off which bicycle can she afford if she has 150
Gekata [30.6K]
If the one for $175 is 10% off, that means Fiana pays 90% of the price

175 * 0.9 = $157.50

It is too expensive because 157.50 is more than the 150 Fiana has.

The second bike for $225 is 35% off which means Fiana pays 65% of the price.

225 * 0.65 = $146.25

She CAN afford the bike for $225
5 0
3 years ago
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Oranges cost $3.60 per dozen how much does 1 cost?
castortr0y [4]

If 6 oranges cost 3.60 than one orange costs .60. To find, divide total price by number of oranges.

3.60/6 = .60

There is no set of pound in a gallon because we do not know the substance. Different liquids weigh different amounts.

3.5 gallons is equal to 448 ounces. To find, multiply the number of gallons (3.5) by the amount of ounces in a gallon (128)

3.5 * 128 = 448

Pound and pints are like gallons and pound. Unless we know the substance we cannot solve.

.75 pints is equal to 12 ounces. To find that, we multiply the number of pints (.75) by the number of ounces in a pint (16)

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3 years ago
Find the surface area of the triangular prism?
viva [34]

Answer:

Step-by-step explanation:

Surface area of a triangular prism

Height = 8cm

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3 years ago
If f(x)=3x²-5x+4, then f(-2) =
igomit [66]

Answer:

Step-by-step explanation:

First let's re-write the equation:

f(x) = 3x² - 5x + 4

If f(-2). then we can re-write the equation as:

f(-2) = 3(-2)² - 5(-2) + 4

We must solve for exponent first:  (-2)² = 4

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Then solve for multiplication:

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2 years ago
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