Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a
1 answer:
Answer:
25 miles
Step-by-step explanation:
Step one:
given data
We are told that 20 gallons of gas can go 410 miles
what we want is the number of miles that 50 gallons can go
Step two:
so
20 gallons will go 410 miles
50 gallons will go x
cross multiply
20x=50*40
divide both sides by 20
x= 500/20
x=25 miles
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8. $298 4. 250 9. 28 6. 8.7 5. 465
Answer:106
Step-by-step explanation:
Let number of white marbles be w
Let number of red marbles be r
w+r = 126---------1
w = 6 +5r-----------2
Put eqn 2 in eqn 1
6+ 5r + r = 126
6 + 6r = 126
6r = 120
r = 20
w = 6 +5r =6+100
= 106
<span>Answer:
n=64 is large enough to use a z-test. The two-tailed 90% confidence interval (5% in each tail) is
pop. mean +/- 1.64 (s.d. / sqrt(n) ) = 16 +/- 1.64 * 0.2/8 oz = [15.959, 16.041]oz
m</span>
Answer:
X= -243
Used Math.way
The answer is 188 altogether
