haroldchapman132 haroldchapman132
  • 26-05-2021
  • Mathematics
contestada

the length of a rectangle is 39cm less than five times its width. find the dimensions if the perimeter is 414cm. 2L+2W = P

Respuesta :

mhanifa
mhanifa mhanifa
  • 26-05-2021

Answer:

  • 41 cm and 166 cm

Step-by-step explanation:

As per question we have:

  • 2(l + w) = 414 ⇒ l + w = 207
  • l = 5w - 39

Solve it for l by substitution:

  • 5w - 39 + w = 207
  • 6w = 207 + 39
  • 6w = 246
  • w = 246/6
  • w = 41

Find l:

  • l = 207 - 41 = 166
Answer Link

Otras preguntas

Give one example of a short-term and long-term health effect of tobacco use
How did great Britain try to control trade with the colonies and Europe
A bowling ball has a total diameter of 8.5 in. It consists of 2 parts. The inside is a spherical core with a diameter of 6 in.Surrounding the core is a layer of
what is .574 as a fraction
Use recompense in a compound-complex sentence
Use the word patriotism in a complete sentence
31.75 rounded to the nearest tenths
Help! William earns $13,644.80 per hear, and has his federal taxes withheld from each weekly check. In addition, a total of $53.60 is deducted form each check.
what is the difference between who and whom
A regulation basketball has a diameter of about 9 inches. What is the best approximation of the volume of the ball? 3050 in3 84.8 in3 38