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PIT_PIT [208]
2 years ago
12

3. Given that a is 30% of b, find the value of a/4b

Mathematics
1 answer:
Karolina [17]2 years ago
6 0

Answer:

a/4b = 0.075

Step-by-step explanation:

a = 30% of b

a = 30/100 × b

a = 0.3b

The value of a/4b is calculated as:

= 0.3b/4b

= 0.075

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Answer:

1239.3 cm^3

Step-by-step explanation:

8 0
3 years ago
Alex wants to sew a pillow in the shape below. How many square yards of fabric are needed to sew the pillow? Fabric is only sold
r-ruslan [8.4K]

The shape is missing, so i have attached it.

Answer:

2.6

Step-by-step explanation:

From the image attached, the diameter of the inner semi - circle is 0.5 yards while the length of each side of the pillow is 0.2 yards.

Thus, for us to find the length of the seam which is along the edges of the pillow, we will calculate the perimeter of the outer semicircle, then add the perimeter of the inner semicircle and also add the sides too.

Now, due to the fact that the length of the sides of the pillow are 0.2 yards each, the diameter of the outer circle would be;

0.5 + 0.2 + 0.2 = 0.9 yards. So, the perimeter of the outer semicircle is,

P0 = πd/2 = π × 0.9/2 =0.45π yds

The perimeter of the inner semicircle would be given as;

PI = πd/2 = π × 0.5/2 =0.25π yds.

Thus, we can calculate the total perimeter of the pillow as;

PT = P0 + PI + 0.2 + 0.2

PT = 0.45π + 0.25π + 0.2 + 0.2

PT ≈ 2.6 yards

Alex will need 2.6 yds

7 0
3 years ago
If the probability of rain today is 25%, what is the probability that it will not rain today?
AlexFokin [52]
These two events are complimentary. So P(not rain)=1-P(will rain)
So, 75% is my guess
6 0
3 years ago
Read 2 more answers
Help me please! Thx
ruslelena [56]

Answer:

9/5

Step-by-step explanation:

6 0
3 years ago
Can someone help me??
Elan Coil [88]

Answer:

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4 0
3 years ago
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