Step-by-step explanation:
Given the function that models the income of a family as g(X) = ax+b
at x = 0, g(x) = 42000, the function becomes;
g(X) = ax+b
42000 = a(0)+b
42000 = 0+b
b = 42000
at x = 1, g(x) = 56256
56256 = a(1) + b
56256 = a+b
a = 56256 -b
a = 56256 - 42000
a = 14,256
To get the average family income in 1997, wee need to calculate g(x) at when x = 5, since the number of years between 1992 and 1997 is 5years.
g(x) = ax+b
g(5) = 14256(5) + 42000
g(5) = 71,280+42000
g(5) = 113,280
Hence the average family income in 1997 is 113,280
Answer:
The ratio of red marbles to yellow marbles will be: 2 : 20 or 1 : 10
Step-by-step explanation:
As from the information
- The ratio of red marbles to blue marbles is 1 : 4.
- The ratio of blue marbles to yellow marbles is 2 : 5.
Multiply the ratio of red to blue marbles with 2.
1 : 4 = 1 × 2 : 4 × 2 = 2 : 8
Multiply the ratio of blue marbles to yellow marbles with 4.
2 : 5 = 2 × 4 : 5 × 4 = 8 : 20
Now the ratio of red : blue : yellow marbles will be:
2 : 8 : 20
Therefore, the ratio of red marbles to yellow marbles will be:
2 : 20 or 1 : 10
Keywords: ratio, fraction
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Answer:
7 hours APPOX
Step-by-step explanation:
Step one:
given data
Rachel drives an average of 50 miles per hour on a trip
speed= 50 mph
distance= 345 miles
Step two:
speed=distance/time
time= distance/speed
time= 345/50
time= 6.9 hours
time= 7 hours APPOX
1.5
negative times a negative is a positive
4x3/8=1.5
Answer:
0
Step-by-step explanation:
he had a score of 2 on the first hole and then he go a birdie i think and it subtracted 2 from that leaving 0