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OLga [1]
3 years ago
5

Benchmarks to estimate 2.81+3.72=

Mathematics
2 answers:
densk [106]3 years ago
4 0

Answer:

7

Step-by-step explanation:

Given : Numbers : 2.81 and 3.72

To Find : to estimate 2.81+3.72

Solution :

If the value after decimal is 5 or more than round off it to successive whole number other wise round off it to preceding whole number

So, estimate of 2.81 is 3

Estimate of 3.72 = 4

Now =3+4

=7

Hence 2.81+3.72=7

Gala2k [10]3 years ago
3 0
2.81+3.72=6.53 which you could estimate to 6.50 or 6.5
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Need help with this question please.
Allisa [31]

Answer:

The answer is, The fastest speed is 3/4 mile in 1/8 hour

Step-by-step explanation:

the answer i have = 6miles per hour and the rest of the answers are lower than that.

8 0
2 years ago
IM DUMB.Someone smart helppppp ill give brainlest​
Montano1993 [528]

Answer:

x=45

Step-by-step explanation:

Each triangle had 180 degrees in all and the picture shows it has a right angle.   180-90=90

90/2=45

Because there are two angles left without measurement.

3 0
3 years ago
EASY, ASAP!
Lady bird [3.3K]

Answer:

Number 1: x = 5

Number 2: y = 3, x = 1

Number 3: x = 40

Step-by-step explanation:

For Number 1 you have to keep in mind that quadrilaterals have an interior angle measurement of 360°.

With that in mind, all the angles must add up to 360° (duh).

(20x - 16) + (81) + (16x + 10) + (15x + 30)

20x - 16 + 81 + 16x + 10 + 15x + 30 = 360

That's a bloody mess! We should really combine like terms.

20x <em>- 16 </em>+ <em>81 </em>+ 16x +<em> 10</em> + 15x + <em>30</em>

51x + 105 = 360

That looks a lot better, basic algebra from here, where we droppin' bois?

51x = 255

x = 5

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

This one's real easy.

In a parallelogram, the sides opposite from each other are equal, therefore:

2y + 2 = 4y - 4

and

x + 6 = 7x

Both are <em>very </em>easy to solve, here:

2y + 2 = 4y - 4

2y + 6 = 4y

6 = 2y

3 = y

<em>Easy!</em>

x + 6 = 7x

6 = 6x

1 = x

<em>Are you kidding me? This is easy stuff, kid.</em>

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

In a Rhombus, in case you didn't know, its diagonals (the lines connecting points diagonal to each other) are ALWAYS perpendicular to one another (intersect at 90°) which means:

2x + 10 = 90

2x = 80

x = 40

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

That will be all, ya boi Keith.

4 0
3 years ago
Three boxes are given and we have to fill it with odd no till 15 and result will is 30 plzz give my answer very fast plzzzz its
Tomtit [17]

Can you restate the question I'm having a hard time understanding what your asking?
4 0
2 years ago
See attached photo for question
ad-work [718]

Answer:6\pi

Step-by-step explanation:

240/360 can be simplified to 2/3. r^2 can be substituted for 9, and 2/3*9 is 6.

6 0
2 years ago
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