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Lyrx [107]
3 years ago
15

Inequality for thirty is no greater than the sum of a number and -8

Mathematics
1 answer:
Alecsey [184]3 years ago
7 0

Answer:

30≤-8+x

Step-by-step explanation:

The wording no greater then lets us know that  the inequality is less than or equal to. The wording sum means the its adding the number and negative 8. Lets have x represent the unknown number.

30≤-8+x

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Samin can run 5 kilometres in 30 minutes. Assuming she keeps a constant pace, how many kilometres can she run in 45 minutes?
Vladimir [108]

Answer:

7.5

Step-by-step explanation: She can run 5km in 30 mins. That means she can run 1 km every 6 mins. 45/6= 7.5. She can run 7.5 km in 45 mins. Such an amazing feat my chubbiness can't compete with.

7 0
3 years ago
María compró 78 metros de cuerda, ella dividió en 6 partes iguales la cuerda el día martes 8 de mayo ¿Cuántos metros mide cada t
barxatty [35]

Answer:

The length of each piece is 13 m.

Step-by-step explanation:

Maria bought 78 meters of rope, she divided the rope into 6 equal parts on Tuesday, May 8, How many meters is each piece?  

a) Each piece measures 312m

c) Each piece measures 13m

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b) Each piece measures 9m and 75cm

Total length, L =  78 m

Number of pieces, n = 6

length of each piece,

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So, the correct option is (c).  

6 0
3 years ago
Please help me, thank you
otez555 [7]

Answer:

-19.59

Step-by-step explanation:

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6 0
3 years ago
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Miguel and Maria are washing the windows in their home. Together, they can complete the task in 1.5 hours. If Maria can wash win
Crazy boy [7]

Answer:For this case, the first thing we must do is define variables.

x: amount of time Miguel uses to complete the task.

y: amount of time Maria uses to complete the task.

We write the system of equations:

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y = (1/2) x

Solving the system we have:

x = 40 minutes

y = 20 minutes

Answer:

it take her to wash them by herself about:

y = 20 minutes

Step-by-step explanation:

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3 years ago
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Basile [38]

Answer:

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Step-by-step explanation:

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3 years ago
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