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3 years ago

A letter of the alphabet is chosen at random. Find the probability that the letter selected is a vowel.

Mathematics

1 answer:

Ann [662]3 years ago

5 0

Answer:

The correct answer is B. 5/26.

Step-by-step explanation:

Let's recall what is the formula of the probability of any event:

Probability of an event= Number of favorable outcome/Total number of favorable outcomes

Then, replacing with the values of our question:

Probability of selecting a vowel = Number of vowels/Total number of letters of the alphabet

Probability of selecting a vowel = 5/26

The correct answer is B. 5/26.

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Solve each system by substitution

Thepotemich [5.8K]

Step-by-step explanation:

{9x+3y=-36

y=-3x-21

9x-9x-36=-36

y=-3x-21

x=0

y=-21

4 0

3 years ago

What is the answer for this one ??

Arisa [49]

Answer: D

Step-by-step explanation:

A. 3 + -7 < -4

-4 < -4

this one isn’t a solution

B. 3 + -7 ≤ -4

-4 ≤ -4

this works, let’s try the other equation

3(3) + 2(-7) < -5

9 + -14 < -5

-5 < -5

this one doesn’t work either, let’s go on to the next one

C. the first equation is the same as the first one in A, and that didn’t work, so we know that the whole thing doesn’t work and we don’t have to do any math

D. we know the first equation works because we did it in B

let’s go on to the second equation

3(3) + 2(-7) ≤ -5

9 -14 ≤ -5

-5 ≤ -5

this works, so that means that both equations work and the whole thing works :)

5 0

3 years ago

The width of a rectangle field is 3h yards and its length is 3 yards longer than the width. The field has a fence around its per

d1i1m1o1n [39]

Answer:

Part a) $P=(12h+2)\ yd$

Part b) The expression that represent the cost of fencing the field is $(336h+56)$

Part c) $\$1,736$

Step-by-step explanation:

The complete question in the attached figure

Part a) we know that

The perimeter of the rectangular field (excluding the width of the gate) is equal to

$P=2(L+W)-4$

we have

$L=(3h+3)\ yd\\W=3h\ yd$

substitute the given values

$P=2(3h+3+3h)-4$

$P=2(6h+3)-4\\P=12h+6-4\\P=(12h+2)\ yd$

Part b) we know that

To find out the cost of fencing the field (excluding the gate) , multiply the perimeter by the cost of $28 per yard

$28(12h+2)=336h+56$

Part c) we have

h=5

substitute the value of h in the expression of the cost

$336(5)+56=\$1,736$

8 0

3 years ago

What is the value of s O-1 0 0 O 1 O no solution

AveGali [126]

Answer: -1

Step-by-step explanation:

4 0

2 years ago

The sum or a 3 digit number and a 1 digit number is 217 the product of the number is 642. If one number is between200 and 225 wh

lawyer [7]

214 x 3 = 642
So, this means the two numbers are 214 and 3.

8 0

3 years ago