a bookstore sells 617 books on moday ,498 books on tuesday, and 563 books on wednsday. on which two days did the bookstore sell about 600 books

Answers

Answer 1

Answer: monday and wednesday

Answer 2

Answer: 617 rounds to 600
563 rounds to 600
498 rounds to 500

answer would be Monday and Wednesday

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The area of triangle AED is 20 square meters. Find the area of parallelogram ABCD.20 square meters
52 square meters
15 square meters
104 square meters
diagram below.

Answers

I found the accompanying image of this problem. The triangle is a right triangle.

area of a right triangle = ab/2 where: a and b are the legs
based on the image: a = 5 m
20 square meters = (5m * b) /2
20 sq. m * 2 = 5m * b
40 sq. m / 5m = b
8 m = b

So the image consists of 2 right triangles with a square in the middle.

Area of a square = a² = (8m)² = 64m²

Total area of the parallelogram = 2 right triangle * 20m² + 1 square *64m²
Total Area = 40m² + 64m²
Total area = 104m² ⇒ 104 square meters.

Solve the system of equations2x+6y=-6, 4x-3y=-12
what is the solution to the system of equations

Answers

2x + 6y = -6 ...(1)

4x - 3y = -12 ...(2)

We can use the method of substitution or elimination to find the solution. I will use the method of substitution.

From equation (1), we can solve for x in terms of y:

2x = -6 - 6y

x = (-6 - 6y)/2

x = -3 - 3y

Now, substitute this value of x into equation (2):

4(-3 - 3y) - 3y = -12

-12 - 12y - 3y = -12

-15y = 0

y = 0

Substitute this value of y back into equation (1) to find x:

2x + 6(0) = -6

2x = -6

x = -3

Therefore, the solution to the system of equations is x = -3 and y = 0.

hope this helps

Answer:

x = -3, y = 0

Step-by-step explanation:

2x+6y=-6 equation1

4x-3y=-12 equation2

multiply equation2 by 2

2[ 4x-3y=-12]

8x - 6y = -24 equation3

add equations 1 & 3

2x+6y=-6

8x - 6y = -24

--------------------

10x = -30

x = -3

substitute x = -3 to any of the equations

I will use equation1

2x+6y=-6

2(-3) + 6y = -6

-6 + 6y = -6

6y = 0

y = 0

Calculate the surface area of sphere with a radius of 5 inches. (4πr2)

Answers

4(3.14) (5) squared

4 (3.14 ) ( 25)

the answer is 314

The price of a gallon of gasoline is $1.80. The price when Ryan's mother started driving was 1/4 of the current price. What was the price of gasoline when Ryan's mother started driving?$0.95
$0.45
$1.55
$2.05

Answers

$0.45 is 1/4 of the price when Ryan started driving

Which expression is equivalent to (7x - 5 ) - ( 3x - 2)?

Answers

$(7x - 5 ) - ( 3x - 2)$

$7x-5-3x+2$

$(7x-3x)-5+2$ $\ Gather \ like \ terms$

$4x-5+2$

$4x-3$

Distribute the minus sign into the second parenthesis to get 7x-5-3x+2.
Then combine like terms to get 4x-3

Simplify. x+5/x^2+6x+5 1/x+1; where x ≠ -1
1/x+1; where x ≠ -1, -5
1/x-5; where x ≠ 5
x-5

Answers

Answer:

The correct option is 2.

Step-by-step explanation:

The given rational expression is

$(x+5)/(x^2+6x+5)$

Factorize the denominator.

The middle term can be written as 5x+x.

$(x+5)/(x^2+5x+x+5)$

$(x+5)/(x(x+5)+1(x+5))$

$(x+5)/((x+5)(x+1))$

Cancel out the common factors.

$(1)/(x+1)$

The simplified form of the given expression is $(1)/(x+1)$ . The factors of the denominator are (x+5) and (x+1), it means at x=-5 and x=-1, the value of denominator is zero.

The given expression is not defined for x=-1 and x=-5.

Therefore the correct option is 2.

x+5/x^2+6x+5
x+5/(x+5)(x+1)
1/x+1

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