emistanswallows
emistanswallows emistanswallows
  • 22-02-2021
  • Mathematics
contestada

please help, i cant seem to get this right!!

please help i cant seem to get this right class=

Respuesta :

Gbese Gbese
  • 22-02-2021

Answer: 7ft

Step-by-step explanation:

The shape is a trapezium

Area of Trapezium= (1/2)(a+b)(h)

Area of Trapezium= 40sqft

a= x

b= 9ft

h= 5ft

40= (1/2)(x+9)(5)

40= (5(x+9)/2)

Cross multiply

80= 5(x+9)

80= 5x + 45

5x= 80-45

5x= 35

Divide both sides by 5

x= 7

Answer Link

Otras preguntas

The territory of a duke or duchess is called a _____.
a picture has dimensions of 5 cm by 10 cm. IF you want to enlarge the picture to a size of 32 1/2 cm x 65 cm by what fraction would you multiply the dimension
This is an essay don't make it to long but please help its science Some constellations, such as ursa minor, are visible in the sky year round: other constellati
How do contour line show elevation, slope, and relief
16 is what percent of 20
How were King Solomon's building projects hurt Israel?
natation TT mean to genetics
Rory is driving 584 miles to a family reunion. She will drive 300 miles by herself the first day. The second day Rory and her cousin will share the driving equa
Which of the following countries fought a long, brutal war to gain its independence? a. Algeria c. Zaire b. Ghana d. South Africa
natation TT mean to genetics