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3 years ago

Which would the phrase "eight more than a number" look like as a variable expression?

Mathematics

2 answers:

Irina-Kira [14]3 years ago

7 0

X+8 or X+8=Y. Any variable works

ivann1987 [24]3 years ago

6 0

X + 8, 8 + x, y = 8 + x, ect. Don't forget to rate 5 stars and give me the brainliest answer! Then, I can help you with all your problems! ^-^ ~

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A bag contains 43 U.S. quarters and seven Canadian quarters. (The coins are identical in size.) If six quarters are randomly pic

Marrrta [24]

Answer:

0.616

Step-by-step explanation:

The number of Us quarters is 43 while the number of Canadian quarters is 7.

The number of quarters we are to pick is 6

Mathematically, the probability of getting at least one Canadian quarter = 1 - probability of getting no Canadian quarter

This means we have to calculate the probability of getting no Canadian quarter first.

The total number of possible outcomes is 50C6 = 15,890,700

If we are to get all to be US quarters, that means we are getting exactly 6 out of 43 = 43C6 = 6,096,454

Hence, probability of no Canadian quarters is 6,096,454/15,890,700 = 0.384

The probability of at least 1 Canadian quarters is thus 1-0.384 = 0.616

6 0

3 years ago

Evaluate the expression 4 × (3 + 52) ÷ 2. Show your work.

STatiana [176]

Answer:

110

Step-by-step explanation:

4 x ( 3+ 52) ÷ 2

4 x 55 ÷ 2

220 ÷ 2 = 110

4 0

3 years ago

Read 2 more answers

25/7 as a mixed number

Aleks [24]

3 and four sevenths bcs 25divided by seven is 3r4

7 0

3 years ago

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In the magic square shown, the sums of the numbers in each row, column and diagonal are the same. What are the values of x, y, z

garri49 [273]

$v=23$ , $w=19$ , $x=22$ , $y=26$ , $z=20$ ;; to find the answer, set the expressions equal to each other, since the sum of the numbers should be the same.

Use $v+w+24=v+43$ and solve for $w$ , which would result in $w=19$ .

You can also use $x+z+24=z+46$ to find $x$ – or $x=22$ .

Plug in the values for $x$ and $w$ , and find $y$ using $25+22+19=y+40$ or $66=y+40$ and results in $y=26$ .

After plugging in the $y$ value, you can easily find $v$ and $z$ .

$v+18+25=66$ – since 66 is the sum of a full row, and the sums of the numbers in each row, column, and diagonal are the same, so therefore, $v+43$ should also equal 66. This results in $v=23$ , and, using the same value for the sum of $z+21+25$ , or $z+46=66$ , we find that $z=20$ .

The final answer is $v=23$ , $w=19$ , $x=22$ , $y=26$ , $z=20$ .

Sorry it took so long;; I hope this helps :)

5 0

4 years ago

What is 91 divided by 0.7

Tomtit [17]

Well i got 130.

hope it helps : )

4 0

4 years ago

Read 2 more answers