Answer:
A.
Step-by-step explanation:
Length of the rectangle is 5 inches
Step-by-step explanation:
- Step 1: Perimeter of the rectangle = 26 in and width = 8 in. Find the length.
Perimeter of the rectangle = 2(length + width)
26 = 2(length + 8)
13 = length + 8
length = 13 - 8
Length = 5 in
Answer:
Step-by-step explanation:
82 / (52+82)
82 / 134
41 / 67
Porque menos por menos es más es una regla
Si multiplicas (-6)(-3) La respuesta es 18 es positivo porque se cumple la regla de menos por menos es más
REPASA
MENOS POR MENOS = MÁS
MÁS POR MÁS = MÁS
MAS POR MENOS = MENOS
MENOS POR MAS = MENOS
Can of baked beans = x
packet of brown sugar = y
packet of biscuit = z
5x + 4y + 2z = 150 - 26 ⇒ 5x + 4y + 2z = 124 is the total cost of all items.
can of baked beans = x = 1/2 of z
packet of sugar = y = z - 3
5(z/2) + 4(z-3) + 2z = 124
5z/2 + 4z - 12 + 2z = 124
5z/2 + 6z = 124 + 12
2(5z/2 + 6z) = 2(136)
5z + 12z = 272
17z = 272
z = 16 cost of a packet of biscuit.
x = 1/2 of z = 16/2 = 8 cost of a can of baked beans
y = z - 3 = 16 - 3 = 13 cost of a packet of sugar
5x + 4y + 2z = 124
5(8) + 4(13) + 2(16) = 124
40 + 52 + 32 = 124
124 = 124
8(8) + 1(13) + 6(16) = 64 + 13 + 96 = 173 total cost on question 3.
