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3 years ago

Rounding or compatible numbers to estimate the sum 790+112=

Mathematics

2 answers:

lianna [129]3 years ago

4 0

800+100=900 or 795+115=810 or 800+110=910

Nataly_w [17]3 years ago

3 0

Answer:

We have to estimate the sum of

790 +112

→Estimation using Tens

790 +110=900

→Estimation using Hundreds

800+100=900

→Actual Estimation

790+112=902

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Kinu has 7 memory sticks that contain data from his computer. Some of the me

ra1l [238]

Solving the system of equations, it is found that x = 3, that is, there are 3 128 MB memory sticks.

--------------------

We want to solve for x, thus, in the first equation, we write y as a function of x, that is:

$y = 7 - x$

Replacing in the second equation:

$128x + 512(7 - x) = 2432$

$128x + 3584 - 512x = 2432$

$384x = 1152$

$x = \frac{1152}{384}$

$x = 3$

x = 3, that is, there are 3 128 MB memory sticks.

A similar problem is given at brainly.com/question/24823220

6 0

2 years ago

Help mehhhhh. ❗️The number of tickets sold on Friday at a movie theater was 2,000 more than the number of tickets sold on Tuesda

Vilka [71]

Answer:

3,250

Step-by-step explanation:

1,250 + 2,000 = 3,250

I hope this helps!

5 0

4 years ago

Read 2 more answers

If the length of the shorter leg of a right triangle is 5 cm and the length of the hypotenuse is 8 cm, find the length of the lo

Brilliant_brown [7]

Answer:

The length of the longer leg is 6.24 cm.

Step-by-step explanation:

Here, the length of the hypotenuse = 8 cm

The length of shorten leg ( Base) = 5 cm

Let us assume the length of longer leg (Perpendicular) = k cm

Now, as the given triangle is a right angled triangle.

So, by the PYTHAGORAS THEOREM:

$( Base)^2 + ( Perpendicular)^2 = ( Hypotenuse)^2\\\implies (5)^2 + (k)^2 = (8)^2\\\implies k^2 = 64 - 25 = 39\\\implies k^2 = 39\\k = \sqrt{(39)} = \pm (6.24)$

Now,as k is the length of the side, so it cannot be negative.

⇒ k = 6.24 cm

Hence, the length of the longer leg is 6.24 cm.

6 0

3 years ago

1/3+1/4 I really don’t get this so can someone please help me with this problem

Oxana [17]

Answer:

7/12

Step-by-step explanation:

You have to find a common denominator, so you would multiply 3 from the 1/3 by 4 which gets you twelve. And bc you multiplied the 3 you have to multiple the 1 so 1/3 would be 4/12. You would then multiply 4 by 3 and get 12. Then do the same to the one on top. So 1/4 would be 3/12. You then add 3 and 4 and get 7. That’s the numerator, the denominator stays 12. So it would be 7/12

4 0

3 years ago

Explain why you do not have to do any computing to solve 15 by 0 by (13+7)

NARA [144]

We dont have to do any cmputing, because multiplying by 0 is always 0. Its mean that no matter what are the different numbers, if we multiply it by 0, we get 0

The result is 0

6 0

4 years ago