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iragen [17]
3 years ago
10

The probability that Carmen will get an A on her math test is 80%, and the probability that she will get an A on her science tes

t is 60%.
What is the probability that she will get an A on both tests? Express your answer as a decimal rounded to the nearest hundredth.
Mathematics
1 answer:
VLD [36.1K]3 years ago
8 0

Answer:

70%

Step-by-step explanation:

60+80=140

140/2=70

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The height of five soldiers included 60inches,67inches,65inches and 64inches,if the mean of the five soldiers is 65inches what i
Nadya [2.5K]

Answer:

The last guy's height is 69 inches

Step-by-step explanation:

mean=sum of all numbers/number of numbers

There are 5 numbers in the set which means that 65 is the sum of all five numbers divided by 5. To reverse that we multiply 65 by 5 to get the sum of all of the numbers.

65*5=325

325 is the sum of all of the numbers so to find the missing number you add up all of the known numbers in the set and find the difference between that sum and 325.

60+67+65+64=256

325-256=69

The missing guy's height is 69 inches.

3 0
3 years ago
!!!!!!!!!!!!!!!!!!!!!!!!
stira [4]

Answer:

C

Step-by-step explanation:

it's an acute angle so it has to less than 90 and 71 just seems like it's too much

6 0
2 years ago
Two gongs strike at intervals of 24 and 40minutes respectively. At twist time will they strike together again if they start simu
solmaris [256]

Answer:

They will sound together at 2pm

Step-by-step explanation:

Now, the first thing we need to calculate is , in how many minutes will the two gongs strike together.

To be able to do this, we need to calculate the least common multiple of the two numbers 24 and 40

The lowest common multiple between both is 120

This means that the two gongs will sound together at exactly 120 minutes

Now since 1 hour is 60 minutes, this means that 120 minutes will be = 120/60 = 2 hours

Since they both sounded together at 12 noon and the next time they will be sounding is next two hours, their sounding time will thus be 12 noon + 2 hours = 2 pm

8 0
3 years ago
Bill and Bob cycle in opposite directions. Bill cycles at 12 km/h
Sliva [168]

Answer:

You arrive home after driving 3 hours and 40 minutes.

Step-by-step explanation:

7 0
3 years ago
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Answer:

use desmos its a graphing caculator that gives you exaxt graphing answers

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2 years ago
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