Simplify the expressions 24/(2*6)+5

Answers

Answer 1

Answer: 24/ 12+5
24/17
1.411. Just do whats in parenthesis and then add that to whats left. So just add like terms. and then divide whats left. Use PEMDAS
Parenthesis exponents multiplication. division addition subtraction

Answer 2

Answer: 7 because 2 times 6 equals 12 divided by 24 equals 2 plus 5 equals 7

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Which expression has a value of 15 when n = 7? 43 minus 5 n 3 n minus 5 6 n minus 28 19 minus StartFraction 28 Over n EndFraction

Answers

Answer:

$19-(28)/(n)$ is the expression with value of 15 when n = 7.

Step-by-step explanation:

To find the expression whose value is 15, substitute the value of n = 7 in each given expression.

Expression 1:

$43-5n$

Substituting the value of n,

$43-5\left(7\right)$

Simplifying,

$43-35=8$

Since the value of the expression is 8 which is not equal 15.

Hence expression $43-5n$ does not have value of 15 when n = 7.

Expression 2:

$3n-5$

Substituting the value of n,

$3\left(7\right)-5$

Simplifying,

$21-5=16$

Since the value of the expression is 16 which is not equal 15.

Hence expression $3n-5$ does not have value of 15 when n = 7.

Expression 3:

$6n-28$

Substituting the value of n,

$6\left(7\right)-28$

Simplifying,

$42-28=14$

Since the value of the expression is 14 which is not equal 15.

Hence expression $6n-28$ does not have value of 15 when n = 7.

Expression 4:

$19-(28)/(n)$

Substituting the value of n,

$19-(28)/(7)$

Simplifying,

$19-4=15$

Since the value of the expression is 15 which is equal 15.

Hence expression $19-(28)/(n)$ has the value of 15 when n = 7.

Final answer:

Upon substituting n = 7 into each of the four mathematical expressions given in the question, the expression '19 - 28/n' evaluates to 15. Hence, '19 - 28/n' is the answer.

Explanation:

To find out which expression equals to 15 when n = 7, we substitute n = 7 into each of the given expressions and evaluate them:

43 - 5n becomes 43 - 5(7) = 43 - 35 = 8,
3n - 5 becomes 3(7) - 5 = 21 - 5 = 16,
6n - 28 becomes 6(7) - 28 = 42 - 28 = 14,
19 - 28/n becomes 19 - 28/7 = 19 - 4 = 15.

Therefore, the expression '19 - 28/n' evaluates to 15 when n = 7.

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Which words describe this shape? Mark all that apply.A polygon(B) open shapepentagonD quadrilateral

Answers

it is a polygon a quadrilateral has 4 sides and a open shape doesn't close so it is a polygon

is a polygon for sure

Which equation represents a line that passes through (5, 1) and has a slope of StartFraction one-half EndFraction?y – 5 = y minus 5 equals StartFraction one-half EndFraction left-parenthesis x minus 1 right-parenthesis.(x –1)
y – y minus StartFraction one-half EndFraction equals 5 left-parenthesis x minus 1 right-parenthesis. = 5(x –1)
y – 1 = y minus 1 equals StartFraction one-half EndFraction left-parenthesis x minus 5 right-parenthesis.(x –5)
y – 1 = 5y minus 1 equals 5 left-parenthesis x minus StartFraction one-half EndFraction right-parenthesis.

Answers

Answer:

y – 1 = y minus 1 equals StartFraction one-half EndFraction left-parenthesis x minus 5 right-parenthesis.(x –5)

Step-by-step explanation:

we know that

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

we have

$m=(1)/(2)$

$(5,1)$

substitute

$y-1=(1)/(2)(x-5)$

The equation of the line in point-slope form is: y - 1 = 1/2(x - 5).

What is Equation of a Line in Point-slope form?

The point-slope form of the equation of a line is given as, y - b = m(x - a), where (a, b) is a point and m is the slope of the line.

Given:

(5, 1) = (a, b)
Slope = 1/2 = m

Plug in the values

y - 1 = 1/2(x - 5)

Therefore, the equation of the line in point-slope form is: y - 1 = 1/2(x - 5).

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Find the product of 21 and (6.3 • 10-4).

Answers

Answer:

1,239

Step-by-step explanation:

This problem can be rewritten as 21 • (6.3 • 10 - 4)

Following the order of operations (PEMDAS) we first have to solve what's in the parentheses.

The next letter is M for multiplication so we have to do 6.3 times 10 which makes 63. That makes 63 - 4 which is 59.

Lastly, since we finished the parentheses, we then do 21 • 59, which solves to be 1,239.

The area of a rectangular shaped living room was 240 sq ft. The longest side of the room was 20 ft .what is the length of the small side of the room.

Answers

The length of the smallestside is 12 ft.

What is a rectangle?

A rectangle is a two-dimensional shape where the length and width are different.

The area of a rectangle is given as:

Area = Length x width

We have,

Area = 240 ft²

Longest side = 20 ft

Small side = M

Now,

Area of a rectangle = Longest side x smallest side

So,

240 = 20 x M

240/20 = M

M = 12

Thus,

The smallestside is 12 ft.

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If the long side is 20ft then the small side of the rectangle is 12ft.

Jack spends 1 2/5 as long on his homework as Jill. Last week, Jill spent 6 3/4 hours doing homework. How long did Jack spend doing homework?

Answers

6 3/4 hours = (6*60)+45 = 405 minutes
7/5 = 1,4
405 minutes * 1,4 = 567 minutes
= Jack spent 9 3/4 hours

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