Help on math please

Mathematics

2 answers:

sergiy2304 [10]3 years ago

8 0

The perimeter is all the sides added up together.

the lines that are on each side mean that each side is the same size.

so 2.5 + 2.5 + 2.5 = 7.5

answer is 7.5 inches

iragen [17]3 years ago

7 0

7.5 inches cause its 2.5 by 3

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virgil is traveling around a circular island. if he travels a 1000 mile course keeping a constant distance of 200 miles from the

julsineya [31]

We know that
circumference of a circle=2*pi*r
for r=200 miles
circumference of a circle=2*pi*200-----> 1256 miles

if 360° (full circle) has a length of------------------> 1256 miles
X°----------------> 1000 miles
x=1000*360/1256------> x=286.62°

the answer is
286.62 degrees

4 0

4 years ago

In rectangle PQRS, PR = 11x – 20and QS = x + 160.

Goshia [24]

Answer:

$\large \boxed{1.\, x = 18; 2.\, 178}$

Step-by-step explanation:

1. Value of x

The diagonals of a rectangle are equal, so

PR = QS

$\begin{array}{rcll}11x - 20 & = & x + 160 & \\11x &= & x + 180 & \text{Added 20 to each side}\\10x & = & 180 & \text{Subtracted x from each side}\\x& = & \mathbf{18} &\text{Divided each side by 10}\\\end{array}\\\large \boxed{\mathbf{x = 18}}$