Answer: He paid 0.50 cents in tax.
Step-by-step explanation:
Lets do this like this:
X = number of quarters and y=number of dimes.
Now, we know that the total number is 35 and that the change adds up to 6.50.
One equation we can form is <span>x+y=35</span>Remember the total number of coins is 35.
The other equation is <span>25x+.1y=6.5</span>Because the number of dimes times their value plus the number of quarters times their value gives us a total of 6.5. Now we can solve for x or y easily in the first equation.
Solving for y like this:<span>y=35−x</span>We can substitute this into the other equation to obtain<span>.25x+.1(35−x)=6.5</span>This simplifies to<span>.15x+3.5=6.5</span><span>.15x=3</span><span>x=<span>20
I hope this can help you indeed</span></span>
Answer:
v= 291 m/s squared
Step-by-step explanation:
v= ?
a=4 m/s squared
u=3 m/s
t=72 secs
v=u+a(t)
v=3 m/s +4 m/s (72 secs)
v=3 m/s + 288 m/s
v= 291 m/s squared
I really have no clue at all never seen anything like this
Answer:
What is the interquartile range of Jefferson Middle School cans recycled? 4
What is the interquartile range of West Side Middle School cans recycled? 5
Which school had a greater variability in their middle 50 percent? West Side Middle School
Step-by-step explanation:
i just did it:)
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