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3 years ago

Which number sentence shows the best way to estimate 64.12÷7.4 ? A. 60 ÷ 10 = 6 60÷10=6

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

5 0

The best answer would be B.
The numbers divided are the closest to the original decimals.
Hope this helps!

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Write a number that is less than 5

jeka94

A number less than 5 can either be 1, 2, 3, or 4.

hope this helps!

3 0

4 years ago

Which is a perfect square? <br>A 20 <br>B 21 <br>C 24<br>D 25

LenaWriter [7]

25

Square root of 25 is 5

8 0

3 years ago

The diagram shows a 7cm x 6cm rectangle-based pyramid all the diagonal sides - TA TB TC and TD are length 10cm M is the midpoint

dedylja [7]

Given:

The base is a rectangle of dimension 7 cm×6 cm.

The length of each diagonal side = 10 cm

To find the height of MT.

Formula

By Pythagoras theorem we get,

$h^{2} = l^{2} + b^{2}$

where, h be the hypotenuse

b be the base and

l be the height.

Now, in this diagram,

The perpendicular distance of M from BC = 3 cm

Slant height = 10 cm

Taking, b = 3 and h = 10 we get,

$10^{2} = l^{2} + 3^{2}$

or, $l^{2} = 10^2-3^2$

or, $l = \sqrt{100-9}$

or, $l = 9.5$

Hence,

The height of MT is 9.5 cm.

4 0

3 years ago

the side lengths of a triangle are increased by 50% to make a similar triangle. does the area increase by 50% as well?

Anarel [89]

No. The new area is 2.25 times the original area. That's (1.5 times 1.5).

6 0

3 years ago

Read 2 more answers

If a silver alloy that costs $4.50 an ounce is

Nitella [24]

6.5X + 9(30) = 8(30+X)6.5X +270 = 240 + 8X270-240 = 8X-6.5X1.5X = 30X = 30/1.5 =20 ounces of $6.50 alloy9 is within 1 of 86.5 is within 1.5 of 81.5 is 3/2 of 130 is 3/2 of 20You know you need more of $9 alloy since it's closer to $8You need exactly 3/2 or 1.5 times more of the $9 alloy30 is 1.5 times 20

5 0

2 years ago

Read 2 more answers