Answer:
y = 0.36x + 4200.00
15100.00 miles.
Step-by-step explanation:
If the yearly cost for driving x miles is given by y dollars then the two ordered pairs to find the linear relation between x and y are (10000,7800) and (20000,11400).
So, the equation will be
⇒ 
⇒ 
⇒ 
⇒ 
⇒ y = 0.36x + 4200.00 ........... (1) (Answer)
Now, for y = $9636.00, from equation (1),
9636 = 0.36x + 4200
⇒ 0.36x = 5436
⇒ x = 15100.00 miles. (Answer)
53,000 rounded to the nearest ten thousand is <span>50,000
</span>the number value in the ten thousandth place is 5. So, when you round a number, you look at the number before the number of the given place value. In this case, the number before the number of the given place value is 3.
Now,
when you round a number, if the number before the number of the given place value is 5 or greater than 5, you add 1 to that number, but if is less than 5, you leave it by itself.
In this case, 3 is less than 5, So, we leave the 5 by itself. and add 4 zeros.
Answer:
20 students per row
Step-by-step explanation:
person per each row=180/9=20
Answer:
Cost of 1 beef= $7.5
Cost of 1 bacon= $6
Step-by-step explanation:
Ok so first of organize everything:
We know she buys 6 pounds ->beef and 3 pounds ->bacon
First we need to set up an equation of how much 1 beef costs and 1 bacon costs:
Let’s say f=cost of 1 beef and b=cost of 1 bacon
Now lets make the equation:
6f+3b=63. (She buys 6 portions of beef and 3 bacon and her total comes out to 63)
Now their is another condition that the cost of one bacon is -$1.50 per pound than beef.
So we can say b=f-1.50
Do you notice anything similar? The b has a value now and so we can replace the b in our first equation with the b of the 2nd (b=b)
So hence,
6f+3(f-1.50)=63
6f+3f-4.5=63
9f=67.5
F=7.5 (This is the cost for 1 pound of beef)
Now lets find out for bacon,. Now instead of doing this equation all over again just insert it into the b=f-1.5 you know make life easier for yourself:
B=7.5-1.5
B=6
Cost of 1 beef= $7.5
Cost of 1 bacon= $6
