Answer:
The best estimate of its y coordinate would be to substitute the value of x into the trend line as the trend line aka best fit line represents the trend that all the points follow. Hence 7=-2(1)+5= 5-2= 3
The answer is option c.
Step-by-step explanation:
6a + 15
hope this helped :)
Answer:
6 3/4
Step-by-step explanation:
15 1/8 - 8 3/4
First convert the mixed numbers into improper fractions.
(To do so, multiply the whole number by the denominator of the fraction and add the result to the numerator)
15 1/8 becomes 121/8
8 3/4 becomes 35/4
Then you need to make the numerators the same so multiply the numerator and denominator of 35/4 by 2 to get a common factor so you can subtract.
You now have 121/8 and 70/8.
Subtract 70 from 121 to get 51/8.
Simplify 51/8 to get 6 3/8 as your answer.
Hope this helps!
Answer:
There are 22 quarters, 15 dimes and 72 nickels.
Step-by-step explanation:
The number of coins in the collection is 109.
Let the number of quarters = x
Let the number of dimes = y
Let the number of nickels = z
Therefore:
x + y + z = 109 -------------------------------------- (1)
There are 7 fewer dimes than quarters. This means that:
y = x - 7
=> x = y + 7
There are 3 less than five times as many nickels as dimes. This means that:
z = 5y - 3
Let us write equation (1) in terms of y to make it simpler to solve:
y + 7 + y + 5y - 3 = 109
Collecting like terms:
7y + 4 = 109
=> 7y = 105
y = 105 / 7
y = 15
Therefore:
x = 15 + 7 = 22
z = (5 * 15) - 3
z = 75 - 3 = 72
Hence, there are 22 quarters, 15 dimes and 72 nickels.
To confirm, 22 + 15 + 72 = 109
Answer:
0, 1, 1/2
Step-by-step explanation:
First you would have to make them have the same denominators.
The lowest one they share is 24.
What ever you do to the bottom you have to do to the bottom.
1/6, times each by 4.
1 * 4 = 4
6 * 4 = 24
4/24.
Now you have to do the same thnig for 5/8.
But times it by 3, since 8 times 3 is 24.
5 * 3 = 15
8 * 3 = 24
15/24
Now subtract.
15 - 4 = 11/24
the difference is close to one half.
4/24 = 1/6 is close to 0.
15/24 = 5/8 is close to 1.