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IrinaVladis [17]
3 years ago
15

David compro 23 boligrafos y 15 lapizes, cada boligrafo le costo 14 pesos y cada lapiz 9. ¿Cuanto gasto en total David?

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
4 0

Answer:

457 pesos

Step-by-step explanation:

From the above question, we are told that:

David bought 23 pens and 15 pencils.

Each pen = 14 pesos

Each pencil = 9 pesos

The amount of money David spent in total =

(23 × 14 pesos) + (15 × 9 pesos)

= 322 pesos + 135 pesos

= 457 pesos

Therefore, David spent in total 457 pesos

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A builder makes drainpipes that drop 1cm over a horizontal distance of 30cm to prevent clogs. A certain drainpipe needs to cover
Ann [662]

Answer:

700.39cm

Step-by-step explanation:

For a horizontal distance of 30cm, the drop is 1cm, now we need to get the drop for horizontal distance of 700 cm to maintain the same slope

Using the concept of cross multiplication

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700 cm=x

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8 0
2 years ago
24 points plz help me:Katie had 300 pencils she gave 45 of her pencils to Kim what percent of the pencils did Kim get.. ?plz hel
lutik1710 [3]

Answer:

15%

Step-by-step explanation:

300 / 3 = 100

45 / 3 = 15

15 of 100 is 15%

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3 years ago
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Solve each equation.<br> 1/3a = -5 a = ?<br> 12 - b = 12.5 b = ? <br> -0.1 = -10c c = ?
Rina8888 [55]

Answer:

a = -15, b = -.5, c = -1

Step-by-step explanation:

1/3a = -5 --> multiply each side with 3 --> a = -15

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2 years ago
Whats another way to write 300 70 5/10 8/100?
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