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3 years ago

Easiest maths question ever

Mathematics

2 answers:

Rom4ik [11]3 years ago

5 0

Using distance = rate * time formula we can solve this problem.

We know the distance 40 miles and we know the time 2 hours.

Plug in the values.

40 miles = 2t hours

Solve for t.

Divide both sides by 2.

40 miles / 2 = 2t hours / 2
20 miles / hour = t

So, the answer is 20 miles per hour.

Oxana [17]3 years ago

3 0

20 miles per hour
If it can cover 40 mph in 2 hours divide 40 by 2 to get the amount for one hour and 40/2=20mph

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How many real-number solutions does the equation have?

Alexxx [7]

I believe the correct answer would be that it has one solution which is 5. Calculating x for the quadratic equation, you will only get one value so it should be one solution. Hope this answers the question. Have a nice day.

8 0

3 years ago

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guapka [62]

Answer:

6.2 a QR

6.2 b 180

6.3 a By aas axiom

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3 years ago

A password has to use the following format: LDDDDLLL, where L can be any of the upper case letters in the alphabet, and D can be

maw [93]

Answer:

Only vowels and odd numbers:

$P = \frac{5}{26} *\frac{4}{25}* \frac{3}{24}* \frac{2}{23} *\frac{5}{10}* \frac{4}{9} *\frac{3}{8} *\frac{2}{7}$

Spells math:

$P = \frac{1}{26} *\frac{1}{25}* \frac{1}{24}* \frac{1}{23}$

Step-by-step explanation:

We have four letters, so the probability that one letter is a vowel is 5/26 (we have 5 vowels in a total of 26 letters), then the second letter has a probability of 4/25 of being a vowel (1 vowel used), and so on (third letter being vowel = 3/24 and fourth letter being vowel = 2/23)

Then, for the digits, we do the same, one digits has 5/10 probability of being odd, then the second digit has 4/9, the third has 3/8 and the fourth has 2/7.

So the final probability would be:

$P = \frac{5}{26} *\frac{4}{25}* \frac{3}{24}* \frac{2}{23} *\frac{5}{10}* \frac{4}{9} *\frac{3}{8} *\frac{2}{7}$

To find the probability that the password spells the word “MATH", each letter has to be a specific letter, so the first letter has 1/26 probability, the second has 1/25, and so on:

$P = \frac{1}{26} *\frac{1}{25}* \frac{1}{24}* \frac{1}{23}$

6 0

3 years ago

18. What is the area of a piece of garden plot 5 yards 2 feet long by 6 yards 1 foot wide? Give your answer in square feet.

34kurt

Answer:

Step-by-step explanation:

1 yard = 3 feet

5yd 2ft = (5)(3)ft + 2ft = 17ft

6yd 1ft = (6)(3)ft + 1ft = 19ft

The formula of an area of a rectangle:

A = wl

w - width

l - length

Substitute w = 19ft and l = 17ft:

A = (19)(17) = 323 ft²

5 0

3 years ago

Solving these quadratics for x using complete the square 3x^2-4x-1=0

ZanzabumX [31]

Answer:

in picture

Step-by-step explanation:

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3 years ago