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2 years ago

What is 62.4 ÷ 8 estimated

Mathematics

2 answers:

quester [9]2 years ago

5 0

Answer:

7.8

Step-by-step explanation:

Lelechka [254]2 years ago

4 0

Answer:

<h2>7.8 and it would be <u>8 once rounded</u> </h2>

Step-by-step explanation:

First you need to divide 62.4 by 8

A simpler way to divide with a decimal, is to multiple both numbers by 10 until there are no decimals.

62.4*10 = 624 8*10 = 80

Now rewrite the equation

624/80

Then solve it

Once you have solved it, you should have gotten 7.8

When rounding a number, you need to make sure you round up and down correctly. To find out if you have to round up or down you need to check the number furthest to the right. This number is 8. Now if the number is 5 or more you round up. If the number is 4 or less, you round down. So since the number 8 is above 5, we round up. This would get us 10 but since the 8 is a decimal, we only get 1

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Please help me solve 5 and 6 for my homework

defon

Answer:

(5) The perpendicular height of the triangle is 8.48 mm.

(6) The 1184.86 cm far up the wall the ladder reach.

Step-by-step explanation:

Part (5):

When a perpendicular is drawn in an isosceles triangle then the perpendicular divided the base into 2 equal parts.

The figures is shown below.

In ΔABC,

CB = 6 mm

So,

CD = BD = 3 mm

Now calculating the perpendicular height of the triangle.

Using Pythagoras theorem in ΔADC:

$(AC)^2=(CD)^2+(AD)^2\\\\(9)^2=(3)^2+(AD)^2\\\\81=9+(AD)^2\\\\(AD)^2=81-9\\\\(AD)^2=72\\\\AD=8.48mm$

Thus, the perpendicular height of the triangle is 8.48 mm.

Part (6):

The figure is shown below.

Converting meter to centimeter:

1 m = 100 cm

So,

12 m = 1200 cm

Using Pythagoras theorem in ΔXYZ:

$(XZ)^2=(YZ)^2+(XY)^2\\\\(1200)^2=(190)^2+(XY)^2\\\\1440000=36100+(XY)^2\\\\(XY)^2=1440000-36100\\\\(XY)^2=1403900\\\\XY=1184.86cm$

Thus, 1184.86 cm far up the wall the ladder reach.

4 0

2 years ago

There is a spinner with 14 equal areas, numbered 1 through 14. If the spinner is spun one time, what is the probability that the

algol13

The probability is 3/14. There are 2 multiples of 4 in 14, which is 8 and 12. There is only 1 multiple of 6 in 14 which is 12. 1+2=3. It is possible outcomes over total outcomes so 3/14.

6 0

3 years ago

Read 2 more answers

Doug mcdougal is whipping up 72 different snacks for his 12th annual blooper bowl bash he invited 138 guess but only 16 are comi

Anna71 [15]

The number of guests coming to Doug McDougal party can be calculated to be 23 people.

<h3>What number of people are coming?</h3>

Doug invited 138 guests and out of this, only 1/6 will be coming.

The number of people coming is therefore:

= Number invited x Proportion coming

Solving gives:

= 138 x 1/6