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arsen [322]
2 years ago
12

The table below shows all the possible outcomes when Henry spins two fair spinners. Spinner A is labelled with sections D, M and

Q. Spinner B is labelled with sections 1, 2, 3, 4 and 5. a) What should go in the empty box in the table? b) Calculate P(Q, 4). Give your answer as a fraction in its lowest terms. ​

Mathematics
1 answer:
aleksandr82 [10.1K]2 years ago
7 0

Step-by-step explanation:

a)

well, logically, it must be M, 2

b)

this is a combined probability for one single pair of possible outcomes.

there are 15 pairs, all with the same probability.

so, P(Q, 4) = number of desired outcomes / number of possible outcomes = 1/15

as combined probability we can also say the probability to get 4 on one wheel is 1/5, and the probabilty to get Q on the other wheel is 1/3

so, P(Q, 4) = 1/3 × 1/5 = 1/15

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14 80 tiles of side 30cm were used to cover a counter top. Calculate the area of the counter top in square metres.​
Komok [63]

Answer:

Step-by-step explanation:

1,480 is a lot of tiles. Did you mean 80 tiles?

30 cm = 0.3 m

Area of one tile = 0.3² m² = 0.09 m²

Multiply the number of tiles by 0.09 m².

3 0
3 years ago
Can anyone help me with this math please I will give brainlist
alexandr402 [8]

Answer:

4.5 > 4.420

0.67 < 0.8

0.82 = 0.820

62.4 > 6.24

0.13, 0.3, 0.303, 0.32

0.08, 0.8, 0.82, 8.2

24.54, 24.4, 24.304, 24.24

6.5, 6.25, 6.05, 6.007

Step-by-step explanation:

The most useful way to compare fractions is to add extra zeros at the end.

For example, 0.67 ___ 0.80.

0.80 is obviously bigger than 0.67.

In 24.4, 24.54, 24.304, 24.24, you can add extra zeros as well.

24.400, 24.540, 24.304, 24.240 (This makes it much easier to group the numbers, whether from largest to smallest or smallest to larger).

**REMEMBER TO REMOVE THOSE ZEROS AFTER FINDING YOUR FINAL ANSWER**

7 0
3 years ago
7) 2x + y = 7<br> What is the intercept
posledela

Answer:

2x + y = 7

x=7/2

y=7

Step-by-step explanation:

to find y itercept =0

to find x intercept=0

5 0
3 years ago
Maya, Eric, and Ryan sent a total of 116 text messages during the weekend. Ryan sent 3 times as many messages as Maya. Eric sent
Naddika [18.5K]

Answer:

Maya 22 Ryan 66 Eric 28

Step-by-step explanation:

m+e+r=116

r=3m

e=m+6

m+m+6+3m=116

Maya sent 22

Ryan is 22*3=66

Eric 22+6=28

3 0
3 years ago
Oscar drew the image of a
trasher [3.6K]

Answer:

When we have a point (x, y) and we do a reflection over a given line, we know that the new point (x', y') will be at the same distance from the line as our initial point (x,y).

Now, in this case, we have a reflection over the line y = -1. (this line is parallel to the x-axis)

But in the image, we can see that the reflected triangle is drawn in the other side of the y-axis, this means that the reflection was made in a line parallel to the y-axis.

Then the mistake that Oscar did is that he reflected over the wrong line, seems that he reflected the triangle over the line x = -1 instead of the line y = -1.

7 0
3 years ago
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