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BigorU [14]
3 years ago
15

Write and solve a proportion to answer the question. What number a is 0.4% of 40?

Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0
The answer should be 16
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How do I solve this?
Delvig [45]

Answer:

10a + 2b

Step-by-step explanation:

Add the lengths of all sides:

3a + b + b + 2a - b + 3a + b + b + 2a - b

Now combine like terms:

10a + 2b

4 0
3 years ago
A bag contains 5 red marbles, 8 blue marbles and 6 green marbles. If three marbles are drawn out of the bag, what is the probabi
Gala2k [10]

70000000000 + 8818282828828

8 0
2 years ago
Write a real world problem that can be represented by 10x + 40 = 100.
NISA [10]
10x + 40 = 100

A restaurant owner sells each plate of rice for 10 dollars plus an additional 40 dollars for the entrance. Mack goes to that restaurant and pays 100 dollars in total. How much plates of rice did he order?<span />
8 0
2 years ago
Read 2 more answers
A sequence is represented by the formula an=-5+a(n-1). If a4 = 20, what is the 6th term in the sequence?
Citrus2011 [14]

Answer:

<u>10</u>

Step-by-step explanation:

Formula :

  • aₙ = -5 + aₙ₋₁

Finding a₅ :

  • a₅ = -5 + a₄
  • a₅ = -5 + 20
  • a₅ = 15

Finding a₆ :

  • a₆ = -5 + a₅
  • a₆ = -5 + 15
  • a₆ = <u>10</u>
4 0
1 year ago
Does anyone know this and can help please
adelina 88 [10]

Answer:

\frac{y^7z^3}{x}

Step-by-step explanation:

When variables have negative exponents, switch their positions.

\frac{x^{-1}y^7}{z^{-3}}=\frac{y^7z^3}{x}

5 0
2 years ago
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