Answer:
8 and 2
Step-by-step explanation:
Let x = the smaller number.
Let y = the larger number.
Let the numbers be x and y
x+y = 10 ..............(1)
y= 4x ........(2)
Put value of y into equation 1
x + y = 10
4x + x = 10
5x = 10
Divide both sides by 5
x = 10/5 = 2
Put value of y into equation 2
y= 4x
y= 4(2)
y = 8
Therefore the numbers are 8 and 2
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Robert should get D. 8281.25 pesos in exchange.
Explanation:
- Robert is bringing 625 U.S. dollars with him to Mexico. He needs to exchange the money he has with him to Mexico's currency i.e. from U.S. dollars to Mexican pesos.
- The exchange rate is 13.25 Mexican pesos for each U.S. dollar. So 1 U.S. dollar = 13.25 Mexican pesos.
- So to calculate how much 625 U.S. dollars is in pesos we multiply 625 with the exchange rate i.e. 13.25 pesos 625 U.S dollars = 625 × 13.25 = 8281.25 Mexican pesos.
A. 60 people exercise regularly (13 + 47).
60 is 100(60 / 250) = 24% of people.
b. 65 people smoke (13 + 52).
65 is 100(65 / 250) = 26% of people.
I took a picture so you can see the steps I took! hope that helps!
