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4 years ago

Explain how u can decide where to place the first digit of the answer for 6,139 / 153

Mathematics

1 answer:

storchak [24]4 years ago

6 0

Answer:

The first digit would go in the tens place.

Step-by-step explanation:

First we estimate the approximate numbers. For 6130 we estimate 6000 and for 153 we estimate almost 150.

So dividing 6000 by 150 would give 40 .

The four would go in the ten's place .

Now check by dividing

40.1 So the answer is correct. The quotient is 40.12.

$153\sqrt{6139}$

612

190

153

37

The first digit would go in the tens place.

The answer is justified. We can easily decide where to place the first digit.

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Helppp this is my math test Which model is 85% shaded?

Anettt [7]

Answer:

Model 1 represents 85% shaded area.

Step-by-step explanation:

Here, each model consists of equal sized rectangles.

Please refer to attached figure to know the model number.

Model 2 (on top right of question figure) contains a total of 20 such rectangles out of which 13 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{\text{Number of shaded rectangles}}{\text{Total number of rectangles}} \times 100\\\Rightarrow \dfrac{13}{20}\times 100 = 65\%$

Model 3 (on bottom left of question figure) contains a total of 16 such rectangles out of which 10 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{10}{16}\times 100 = 62.5\%$

Model 4 (on bottom right of question figure) contains a total of 16 such rectangles out of which 13 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{13}{16}\times 100 = 81.25\%$

Model 1 (on top left of question figure) contains a total of 20 such rectangles out of which 17 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{17}{20}\times 100 = 85\%$

Hence, model 1 is the correct answer.

3 0

3 years ago

An isosceles trapezoid has a perimeter of 37 centimeters. Its shorter base measures 3 centimeters and its longer base measures 4

koban [17]

Given:

An isosceles trapezoid has a perimeter of 37 centimeters. Its shorter base measures 3 centimeters and its longer base measures 4 centimeters. The two remaining sides have the same length.

We need to determine the lengths.

Length of the remaining sides:

Let the length of the sides of the isosceles trapezoid be x.

Let a be the length of the shorter base.

Let b be the length of the longer base.

Thus, we have;

$a=3, b=4$

The formula to determine the length of the sides is given by

$Perimeter = a+b+c+d$

Substituting the values, we get;

$37=3+4+x+x$

$37=7+2x$

$30=2x$

$15=x$

Thus, the length of the sides of the isosceles trapezoid is 15 centimeters.

6 0

3 years ago

Y = x – 6

zhenek [66]

-4-6= -10
-10 = Y
-4 = X
Therefore the answer is (-4,-10) which isn’t on the options

8 0

3 years ago

What is -4^2 equal to?

Anni [7]

Answer:

-16

Step-by-step explanation:

Negative four to the second power is equal to -4 x -4 which is -16

6 0

3 years ago

What are the measures of 1 and 2? 37.1 1 2 17.30 121.8°

Lady_Fox [76]

Answer:

Option 2 : m∠1 = 67.4°, m∠2 = 104.5°

Step-by-step explanation:

Lets find the measure of angle 2 first:

180° - 17.3° - (180° - 121.8°) = Angle 2

↑

Angle of the straight line = 180°

The angle should be 180 - 121.8

Angle 2 = 104.5

At this point the only answer that works is the second option, but let's still work out Angle 1

Angle 1 :

Theory of opposite angles state that the opposite angles inside a triangle = the exterior angle

in this case:

Angle 1 + 37.1 = Angle 2

Since we know angle 2 = 104.5, lets solve

Lets say angle 1 = x

x + 37.1 = 104.5

x = 104.5 - 37.1

x = 67.4

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

8 0

3 years ago

Read 2 more answers