Answer:
1/12t=1/3h
t=?
1/12t*12=t
t=(1/3h)*12
t=4h
filling the tank takes 4 hours.
Answer:
<u>0.013</u>
Step-by-step explanation:
20 hundredths = 0.2
65 thousandths = 0.065
0.2 × 0.065 = 0.013
We have the first equation:
-10x + 5y = zero
we can divide all terms by 5 to get:
-2x + y = zero
This means that:
y = 2x .................> equation I
We now will look at the second equation:
<span>-4x-6y=54
</span>we will substitute with equation I in this equation to get:
<span>-4x-6(2x)=54
-4x - 12x = 54
-16x = 54
x = -3.375
Substitute with the value of x in equation I to get y as follows:
y = 2(3.375) = -6.75
Therefore, for the given system of equations:
x = -3.375
y = -6.75</span>
Answer:
<h2><u><em>
2.8 miles</em></u></h2>
Step-by-step explanation:
Josh runs 7 miles in 60 minutes. At the same rate, how many miles would he run in 24 minutes?
7 : 60 = x : 24
x = 7 * 24 : 60
x = 2.8 miles
5.76+2.31 (because - and a - equals a +) = 8.07
10.64-8.07(because a negative at front of a subtraction problem is the same thing) = -2.57
