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amid [387]
3 years ago
13

Which choices are equilvalent to the expression below? Check all that apply. 9^3 x 9^4

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

9^{3}x9^{4} =9^{3+4}=9^{7}

Step-by-step explanation:

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Before leaving to visit Mexico, Levant traded 270 American dollars and received 3,000 Mexican pesos. When he returned from Mexic
erica [24]

The amount of dollars that Mr. Levant would exchange for 100 pesos on his return is <u>$9</u>.

<h3>What is an exchange rate?</h3>

An exchange rate is a rate that is used to convert one nation's currency to another.

The exchange rate is based on the purchasing power of each nation's currency.

<h3>Data and Calculations:</h3>

Dollars before traveling to Mexico = $270

Value of Mexican pesos received for $270 = 3,000 pesos

Exchange rate = $1 = 11.11 pesos (3,000/$270)

Amount of pesos left after the trip = 100 pesos

Value of 100 pesos in dollars = <u>$9</u> (100/$11.11)

Thus, the amount of dollars that Mr. Levant would exchange for 100 pesos on his return is <u>$9</u>.

Learn more about exchange rates at brainly.com/question/2202418

#SPJ1

4 0
1 year ago
To find 19 + (11+37), Lennie added 19 and 11. Then he added 37 to the sum. What property did he use ?
Ad libitum [116K]

19 + (11+37) = (19 + 11) + 37

Associative property of addition

3 0
2 years ago
Read 2 more answers
A chemist needs 130 milliliters of a 47% solution but has only 35% and 87% solutions available. Find how many milliliters of eac
choli [55]

Answer: Amount of 35% solution required = 100 milliliters

Amount of 87% solution required  = 30 milliliters

Step-by-step explanation:

Given: Total solution required =  130 milliliters

Let x = Amount of 35% solution (in milliliters).

Then, Amount of 87% solution required = 130 - x

As per given,

Concentration = 0.35x +0.87(130-x)=0.47(130)

0.35x +113.1-0.87x=61.1\\\\\Rightarrow\ -0.87x+0.35x=61.1-113.1\\\\\Rightarrow\ -0.52 x= -52\\\\\Rightarrow\ x=\dfrac{52}{0.52}=100

Hence, Amount of 35% solution required = 100 milliliters

Amount of 87% solution required  = 130-100 milliliters =30 milliliters

3 0
2 years ago
"Find the constants m and b in the linear function f(x) = mx + b so that f(2) = 10 and the straight line represented by f has sl
Ksju [112]

f(x) = mx + b m = slope = -5 f(2) = 10 = (-5)(2) + b b = 10 + 10 = 20 Ans. m=-5, b = 20


6 0
3 years ago
Yo plz help me I don’t know this<br><br> Which number line shows the solution to -6 - (-4)?
Airida [17]

Answer:

B

Step-by-step explanation:

To solve -6-(-4) you need to break it down.

First, multiply -(-4) which would equal 4 (negative times negative equals positive)

Then add 4 to -6 (-6+4)

This equation is being expressed through option B

Hope this helps! :)

3 0
2 years ago
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