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EastWind [94]
3 years ago
10

Need help on this ASAP

Mathematics
1 answer:
serg [7]3 years ago
3 0

Answer:

so what to fo tell in brief

if u have time

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The exchange rate in some prehistoric village was 6 jagged rocks for every 2 smooth pebbles. Also, one shiny rock could be trade
Scrat [10]

30 Jagged rocks are the same 3 shiny rocks using the exchange rates provided(i.e. option D)

What is an exchange rate?

Exchange rate means the rate at which one item exchanges hands with another, for instance, in this case, 6 jagged rocks are equivalent to 2 smooth pebbles.

6 jagged rocks=2 smooth pebbles

divide both sides by 2

6/2 jagged rocks=2/2 smooth pebbles

3 jagged rocks=1 smooth pebble

We can rewrite as below:

1 jagged rock=1/3 smooth pebble

30jagged rocks=1/3*30 smooth pebbles

30 jagged rocks=10 smooth pebbles

Now we need to convert 10 smooth pebbles to shiny rock equivalence

3 smooth pebbles=1 shiny rock

1 smooth pebble=1/3 shiny rock

10 smooth pebbles=1/3*10 shiny rocks

10 smooth pebbles=3 shiny rocks( even though it is 3.33, but the final answer should be rounded to a whole number)

Read more about exchange rate in the link below:

brainly.com/question/2202418

#SPJ1

4 0
2 years ago
Please help ASAP I am very dumb​
igomit [66]

Answer:

C

Step-by-step explanation:

calculate like terms, then it is pretty simple from there.

4 0
3 years ago
Read 2 more answers
the hight, the feet, of a javelin t seconds afther it is moldeled by the function (t) =4t^2 + 24t + 6. Afther how many seconds d
ruslelena [56]
The max height will be reached after 3 seconds.

You have a typo in your equation. For this type of quadratic equation, it always starts out with a negative coefficient of the t squared term.

To find the x-coordinate of the vertex, we just need to use the expression: -b/2a.

Then, we have:

-24 / (2(-4))

-24 / -8

3
8 0
3 years ago
Write an expression for the area of the rectangle below.
sesenic [268]

Answer: C

Step-by-step explanation:

1) Multiply (2x+8)(6x+2)

2) After you do the math you will get 12x^2+52x+16

REMEMBER: A= Length times width

5 0
3 years ago
Which is an example of an algebraic expression? A. 2k + 25 B. z – 8 = 44 C. 3 + 7 = 10 D. 76 – 10
photoshop1234 [79]
Options a and b are the algebraic expressions
7 0
3 years ago
Read 2 more answers
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