Lily is redecorating her house. She needs to work out the area of the wall around her
1 answer:
*the complete diagram is given in the attachment below
Answer:
✔️ 198.7 m²
✔️$219.9
Step-by-step explanation:
✔️Area around the wall to be painted = area of rectangle - area of triangle
= L×B - ½ab×sin(C)
Where,
L = 17 m
W = 14 m
a = 9.5 m
b = 8.7 m
C = 72°
Plug in the values
Area around the wall to be painted = 17×14 - ½×9.5×8.7×sin(72)
= 238 - 39.3024105
≈ 198.7 m² (nearest tenth)
✔️Cost of painting the wall:
Paint cost $21.99 per container of 20 liters
Find how many liters would be needed if 1 liter covers 1m²
Liters needed to cover 198.7 m² = 198.7*1 = 198.7 liters of paint
20 liters = 1 container,
198.7 liters = 198.7/20 = 9.935 ≈ 10 containers
1 container cost $21.99
10 containers = 21.99×10 = $219.9
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Answer:
Step-by-step explanation:
Given that the bag contains black and red marbles.
Number of black marbles in the bag = 2
Number of red marbles in the bag = 3
Total number of marbles in the bag = Number of black marbles + Number of red marbles = 2 + 3 = 5
Let us have a look at the formula for probability of an event E, which can be observed as:
Now, the marble chosen at first is replaced.
Therefore, the count remains the same.
Now, the <em>required probability</em> can be found as:
The complete question in the attached figure
Let
Z---------------- > number of zacks stamps collections <span>for a stamp show
</span>T---------------- > number of teri's stamps collections <span>for a stamp show
</span>P--------------- > number of pacos stamps collections for a stamp show
we know that
Z=(3/10)*30-----------> Z=9
T=(5/6)*18------------ > T=15
P=(3/8)*24------------->P=9
the answer is
number of zacks stamps collections for a stamp show was 9
number of teri's stamps collections for a stamp show was 15
number of pacos stamps collections <span>for a stamp show </span>was 9
In their display were 33 stamps
Let
Z---------------- > number of zacks stamps collections <span>for a stamp show
</span>T---------------- > number of teri's stamps collections <span>for a stamp show
</span>P--------------- > number of pacos stamps collections for a stamp show
we know that
Z=(3/10)*30-----------> Z=9
T=(5/6)*18------------ > T=15
P=(3/8)*24------------->P=9
the answer is
number of zacks stamps collections for a stamp show was 9
number of teri's stamps collections for a stamp show was 15
number of pacos stamps collections <span>for a stamp show </span>was 9
In their display were 33 stamps