Two spinners are spun 20 times. A sum of 7 is landed on 5 times. What is the experimental probability of spinning a sum of 7?

Mathematics

1 answer:

statuscvo [17]3 years ago

8 0

7/20 is the probability

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What Is area of this? (25 points for it pls I rlly need help)

tester [92]

Answer: 27.42 cm squared
explanation: separate the figure into three simple shapes (2 triangles, 1 rectangle)(picture of the three shapes attached)
solve for area of each shape
trangles: 1/2 x b x h
1/2 x 1.1 x 4.8 = 2.64
1/2 x 1.2 x 5.9 = 3.54
rectangle: l x w
3.6 x 5.9 = 21.24
finally, add all parts and you have your answer.
2.64 + 3.54 + 21.24 = 27.42

6 0

3 years ago

Read 2 more answers

P is a rectangle with a length 40 cm and width x cm

TiliK225 [7]

The first thing we must do for this case is to look for the area of each rectangle.
We have then:
A1 = (40) * (x)
A2 = (1.25 * 40) * (y)
Then, we have the following relationship between areas:
"the area of Q is 10% less than the area of p"
A2 = 0.9 * A1
Substituting values we have:
(1.25 * 40) * (y) = 0.9 * ((40) * (x))
We rewrite:
50y = 36x
The relationship x: y is:
x / y = (50) / (36)
Simplifying:
x / y = (25) / (18)
Answer:
the ratio of x:y is:
25:18

3 0

3 years ago

PLEASE HELP ME (PICTURE) 4 3 2 6

elena55 [62]

Since the triangles are similar, they will have proportional sides. With this knowledge, we can make the proportion $\frac{8}{10} =\frac{x}{5}$ to solve for x.