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Drupady [299]
3 years ago
14

Estimate the difference 8 7/12 - 4 7/8 - 4/10

Mathematics
1 answer:
Gnesinka [82]3 years ago
4 0
When you are told to estimate, you should be able to do the problem in your head.
8 7/12 is close to 8 1/2
4 7/8 is very nearly 5
4/10 is very nearly 1/2

8 1/2 - 5 - 1/2 First of all you can take the 1/2 away from 8 1/2
8 1/2 - 1/2 = 8
Now take away the 5


8 - 5 = 3

So the answer is very nearly
3 <<<<< answer.

Just for fun, I'll get the exact answer. Don't hand this one  in. It is 3 37/120
You learn to estimate because you are trying to guess whether or not you've entered everything correctly into your calculator. When writing a test, this is a very handy skill to have developed.

You might be interested in
Kristina walks 7 1/2 miles in 5 hours. At this rate, how many miles can Kristina walk in 9 hours
puteri [66]

Answer:

13.5

Step-by-step explanation:

7 1/2=7.5

7.5/5*9=13.5

4 0
3 years ago
Write an equation if y=-4 when x=2
faltersainse [42]

Answer:

y + 4 = 2(x - 2)

Step-by-step explanation:

There is an infinite number of possible equation that satisfies this requirement. If the y = -4 when x = 2 in the equation, the point (2, -4) must be a solution to the equation. We can use the point-slope form to create an equation that satisfies this requirement. The point-slope form is:

y - y1 = m(x - x1)   where m is the slope and (x1, y1) is a solution to the equation.

We know that (2, -4) must be a solution to the equation that we are trying to make. We can use (2, -4) as our (x1, y1). Since having (2, -4) as a solution is our only requirement, the slope can be any real number. I am going to make my slope 2 (you can choose whatever you want). So:

(x1, y1) = (2, -4)

m = 2

Now plug these into out point-slope equation:

y + 4 = 2(x - 2)

Remember, this is just one of infinitely many equations that meets the requirement.

Happy studying. :)

8 0
3 years ago
The taxi fare in Las Vegas is $3.50 for the first mile, and $2 for each additional mile after the first. If you have $29.50, how
forsale [732]

Answeryou'll be able to ride 14 miles.

Step-by-step explanation:

Your price is 29.50. if the first mile is 3.50 you'll subtract that from the 29.50 you originally had. Now you're left with 26.00. If you divide that by the two dollars you pay for every next mile you'll have 13 miles. Now add that first mile and you have 14. Hopefully  this made sense!

3 0
3 years ago
jordan solved 6 × 5 by breaking apart the 6 into 5 + 1. which of the following correctly shows the next step to find the solutio
AleksandrR [38]
D, it’s the only answer that equals 30. When splitting up the 6, you’re doing the distributive property, which is what D is doing.
7 0
3 years ago
Read 2 more answers
Find the slope, distance and midpoint between
Dovator [93]

Answer:

Slope- 4

Distance- 12.4

Midpoint- (6,8)

Step-by-step explanation:

Slope- \frac{y2-y1}{x2-x1}

\frac{2-14}{4-7} =\frac{-12}{-3}=4

Distance- d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}

d = \sqrt{(4 - 7)^2 + (2-14)^2}

d = \sqrt{-3^2 + -12^2}d = \sqrt{144+9}=\sqrt{153}

\sqrt{153} = 12.4

Midpoint- \frac{x1+x2}{2} ,\frac{y1+y2}{2}

\frac{7+4}{2} =\frac{12}{2} = 6=x

\frac{14+2}{2} = \frac{16}{2} = 8 = y

(6,8)

6 0
3 years ago
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