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Bas_tet [7]
3 years ago
13

Find two numbers witha sum of 20 and a difference of 14

Mathematics
1 answer:
bixtya [17]3 years ago
6 0

from the given equation

X+Y=20-->i

X-Y=14--->ii

add eq i and eq ii

2x=34

x=17

putting the value of x=17 in eq i

17+y=20

then y = 3 so the right answer is

17 and 3

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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

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4 0
2 years ago
Charla wants to determine the vertex of the function f(x) = x2 – 18x + 60 by changing the function into vertex form. Which state
7nadin3 [17]

Answer:

A. the x-coordinate of the vertex is greater than the y-coordinate.

Step-by-step explanation:

hope this helps

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6 0
3 years ago
Simplify the Expression<br> - 1/2 (8b+3)+3b=
Anna35 [415]

Answer:

-b -3/2

Step-by-step explanation:

-1/2(8b+3) + 3B (a negative times a positive equals a negative)

1. Mutiply -1/2 by 8b and then by 3

(-1/2 x 8b -1/2 x 3) + 3b

-4b - 3/2 + 3b

2.  Add -4b + 3b = -b

-b - 3/2

5 0
3 years ago
Maya has 5 over 6 cup of ice cream. How many 1 over 4-cup servings are in 5 over 6 cup of ice cream? ASAP I need help
Ierofanga [76]

Answer:

Find the LCD (least common denominator)

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it would be 12 (6x2=12 and 4x3=12)

so you multiply  {5}/{6}  by 2 and get {10}/{12}  

then multiply  {1}/{4}  by 3 and get  {3}/{12}  

you get 3 WHOLE servings from {5}/{6}  cups of icecream

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP <br><br> ILL GIVE BRAINLIEST !
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answer:

to my knowledge it's, 65

5 0
3 years ago
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