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4 years ago

The perimeter of a rectangular field is 340 yards. If the length of the field is 91 yards, what is its width?

Mathematics

2 answers:

Mars2501 [29]4 years ago

3 0

Answer:

Step-by-step explanation:

91 x 2 is 182. 340-182 is 158 divide by 2 and you get 79

saveliy_v [14]4 years ago

3 0

Answer:

The width is 79 yards

Step-by-step explanation

Okay, so the perimeter of a shape is the sum of all the side-lengths of said shape. Because the shape is a rectangle, there are 4 sides (2 sides being the length, 2 sides being the width). This being said, the equation that can be used to find the perimeter is Perimeter = Length + Length + Width + Width or Perimeter = 2Length + 2Width. You would then plug in your given variables and solve for width. I have shown my work in the image below, I hope this is helpful :)

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The image of a triangle after it has been dilated with a center at the origin has vertices at A’(-12,6) B’(6,-18) and C’ if the

ArbitrLikvidat [17]

Answer:

scale factor is 2/3.

coordinates of B are (9,-27).

coordinates of C' are : (12,18)

Step-by-step explanation:

The image of a triangle after it has been dilated with a center at the origin has vertices at A’(-12,6) B’(6,-18) and C’ .

Point A has coordinates of (-18,9) and the pre- image of C' point C has coordinates of (18,12).

Clearly when we compare point A and point A' we see that the transformation is a dilation.

let the scale factor of dilation is 'k'.

i.e. A→ A'

i.e. k(-18,9)=(-12,6)

(-18k,9k)=(-12,6)

i.e. -18k=-12

and 9k=6

Hence, on solving we get:

k=2/3

i.e. the scale factor is 2/3.

Also,

we find the coordinates of B(c,d) by:

2/3(c,d)=(6,-18) since B→ B'

2/3×c=6

Hence c=9

and 2/3 ×d=-18

d=-27.

Hence, the coordinates of B are (9,-27).

Also the coordinates of C are (18,12)

Hence, coordinates of C' are:

$(\dfrac{2}{3}\times 18,\dfrac{3}{2}\times 12)\\\\=(12,18)$

Hence, the coordinates of C' are : (12,18)

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3 years ago

Read 2 more answers

Using long division what is it a decimal equivalent of 11 I mean just a littl Using long division what is it a decimal equivalen

Vladimir [108]

Answer:

11.0 is the equivalent the decimal equiv of 9/1 is 9.0

Step-by-step explanation:

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3 years ago

Estimate square root 250 to two decimal points

Juli2301 [7.4K]

OK, the square root of 250 is 15.811 . . .
but since this can't be expressed as a decimal for your purposes, let's try factoring. Since 250 ends in a zero, only numbers 5 or 0 or those ending in 5 or 0 could be factors.
The square root of 250 can be factored into the square root of 25 and the square root of 10.
The square root of 25 is exactly 5, and the exact square root of 10 is another decimal, so your simplified answer can be expressed as 5 times the square root of 10.

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3 years ago

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Find the distance between R(–1, 1) and S(–4, –5) to the nearest tenth.

Bond [772]

$\text{The formula of a distance between two points}\\\\A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\\\\text{We have}\ R(-1;\ 1);\ S(-4;\ -5)\\\\\text{substitute}\\\\|RS|=\sqrt{(-4-(-1))^2+(-5-1)^2}=\sqrt{(-3)^2+(-6)^2}\\\\=\sqrt{9+36}=\sqrt{45}\approx6.7\\\\\text{Answer: 6.7}$

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3 years ago

Estimate the sum of the decimals below by the nearest whole number 4.493+8.962+4.018

Maksim231197 [3]

Answer:

17.473 = 17

Step-by-step explanation:

The answer would be 17.473 but to the nearnest whole number it would be 17. To round 17.473 to the nearest whole number consider the tenths’ value of 17.473, which is 4 and less than 5. Therefore, we have to round down: the whole number ones place value of 17.473, 17, remains 17, and the decimal point and all digits (.473) are removed

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3 years ago