Arectangle is 4 times as long as it is wide. the perimeter is 150cm. find the dimensions of the rectangle. round to the nearest tenth if necessary

Length 60 cm

Width 15 cm

Step-by-step explanation:

Let

x ----> the length of rectangle

y----> the width of rectangle

we know that

The perimeter of rectangle is equal to

we have

so

simplify

----> equation A

----> equation B

substitute equation B in equation A

solve for y

Find the value of x

----->

therefore

The dimensions of the rectangle are

Length 60 cm

Width 15 cm

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

step-by-step explanation:

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