mosu23361
mosu23361 mosu23361
  • 23-08-2022
  • Mathematics
contestada

In this rectangle, the length and the width are in the ratio 5 : 2. The area of the rectangle is 90 cm². Work out the length and width of the rectangle.
​

Respuesta :

jaisurajk jaisurajk
  • 23-08-2022

Answer: width: 6cm

length: 15 cm

Step-by-step explanation:

w=2b

A=90 cm^2

A=l*w

A=5b*2b

A=2.5w*w

A=2.5w^2

90=2.5w^2

w^2=36

w=6 cm

90=l*6

l=15 cm

Answer Link

Otras preguntas

Write the equations in standard form?
What is negative five over eight -5/8 b = 10
LEAST COMMON MULTIPLE OF 27 , 48, 66
I need help with this problem. 2.9 × 10 ^11 - 3.7 × 10^13
Use expressions for odd integers to confirm the conjecture that the product for two odd integers is an odd integer.
what two forms can you write 4.293
PLEASE HELP I need to make a simple acrostic poem for the word "CHARTER" (the definition is "a document that granted the right to form a colony")
three times b less than 100 is equal to the product of 6 and b
A bus is moving at 24 m/a (t=0) slows at a rate of 4.0 m/s each second; how long does it take the bus to stop? and then how far does it travel while braking? I
what property is 19 + (11 + 37 ) ?