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earnstyle [38]
2 years ago
12

Juanita has 16 model cars and 48 model trains. What is the ratio of the wmber of trains to the member of cars?

Mathematics
1 answer:
svetoff [14.1K]2 years ago
6 0

Answer:

1:3

Step-by-step explanation:

but thats not and answer

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I need help with this...
lisov135 [29]

   ln 5
e              =    ?
                                    x
Keep in mind that y=e     and y = ln x are inverse functions of one another.
  ln 5
e       ,  we can drop both the "e" and the "ln 5."  We are left with 5 (answer).
                                                                                        ln 5
Alternatively, we could take the ln of both sides of y = e

which will result in ln y = (ln 5) ln e.  Note that ln e = 1 (these two functions are inverses of one another).

Then we are left with ln y = ln 5.  Dropping the "ln" operator from both sides,

y=5 (same as before).
8 0
3 years ago
H^2+14h=-31 Solve by completing the square
matrenka [14]
Since the constant has been moved to the left side, you can move on to the next step which is adding (b/2)² to both sides of the equation.

h² + 14h + (14/2)² = -31 + (14/2)²

Simplify the parenthesis and exponent.

h² + 14h + 7² = -31 + 7²

h² + 14h + 49 = -31 + 49

h² + 14h + 49 = 18

Factor the expression of the left.

(h + 7)(h + 7) = 18

Take the square root of both sides.

√(h + 7)(h + 7) = ± √9 • 2

(h + 7) = ± 3√2

h + 7 = ± 3√2

Subtract 7 from both sides.

You solutions are:

h = -7 + 3√2 → -2.7573 → -2.76

h = -7 - 3√2 → -11.2426 → -11.24
5 0
3 years ago
Read 2 more answers
Pete and Teegan each put the same amount of money in a new bank account. Teegan's account earns 2.75% simple interest, and she e
ss7ja [257]

Answer:

$4

Step-by-step explanation:

Let us assume that Pete and Teegan each put an amount of $P in a new bank account.

Teegan's account earns 2.75% simple interest and she earned $2.20 in interest after one year.

P = $80

Now, this $80 in Pete's account earns 5% simple interest.

Then after one year Pete will earn as interest  80x5/100 = 4 Dollars.

Therefore your answer is $4.

3 0
2 years ago
PLEASE HELPP BRANLIEST AND MEDAL PLSSS
Fudgin [204]
56. and 1.6^4



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8 0
2 years ago
Can someone please tell me how to expand and simplify 4(x+1)^2?
siniylev [52]

Expand the binomial first, then distribute the 4:

4 (<em>x</em> + 1)² = 4 (<em>x</em> ² + 2<em>x</em> + 1)

… = 4•<em>x</em> ² + 4•2<em>x</em> + 4•1

… = 4<em>x</em> ² + 8<em>x</em> + 4

4 0
3 years ago
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