Answer:
40/3, 172/3, respectively
Step-by-step explanation:
x + 9 = 2y
2x = 2y + 2
x + 9 = 2(2x - 2)
4x - 4 = x + 9
3x - 13 = 0
x = 13/3
y = 40/6
RT = 13/3 + 9 = 40/3
QS = 160/3 + 4 = 172/3
Answer:
Step-by-step explanation:
-2m - 5n = 7m - 3n
-9m - 5n = -3n
-9m = -2n
m = 2n/9
g(m)= 2n/9
Answer:
Step-by-step explanation:
Let s represent the son's age now. Then s+32 is the father's age. In 4 years, we have ...
5(s+4) = (s+32)+4
5s +20 = s +36 . . . . . eliminate parentheses
4s = 16 . . . . . . . . . . . . subtract s+20
s = 4
The son is now 4 years old; the father, 36.
_____
<em>Alternate solution</em>
In 4 years, the ratio of ages is ...
father : son = 5 : 1
The difference of their ages at that time is 5-1 = 4 "ratio units". Since the difference in ages is 32 years, each ratio unit must stand for 32/4 = 8 years. That is, the future age ratio is ...
father : son = 40 : 8
So, now (4 years earlier), the ages must be ...
father: 36; son: 4.
Answer:
16,000
Step-by-step explanation:
to round to the nearest thousand you must look at the thousands place and then look to the number next to it
if the number is 0 1 2 3 or 4 the thousands place stays the same
if the number is 5 6 7 8 or 9 the thousands place goes up one
in this case it is 0
so it stays the same
16,000 is your answer
The probability the next customer pays using a debit card based on the last three weeks is 30% or 0.3.
<h3>What is a probability?</h3>
This is the chance or likelood for an event to occur. For example, if in a city it has snowed every year on December 25th, there is a high probability it will snow this year and in the next years.
<h3>How to calcuate the probability?</h3>
Total of a specific outcome/ total of outcomes
Based on this, let's calculate the probability the next customer pays using the debit card:
- Total that pay with debit card: 21 customers
- Total of customers: 70 customers
- 21/ 70 =0.3 or 30%
Learn more about probability in: brainly.com/question/11234923
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