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2 years ago

Find the difference between the actual and estimated values of 55 - 21

Mathematics

2 answers:

Ivahew [28]2 years ago

7 0

Answer:

Actual: 34 Estimated: 40

Step-by-step explanation:

The difference between these values is that the actual difference is more accurate. If you're asking for the difference as in subtracting, then 7 is the answer. Hope this helps :)

Tomtit [17]2 years ago

4 0

Answer:

Step-by-step explanation:

Actual values = 55 - 21

= 34

Estimated values = 60 - 20 = 40

Difference between actual and estimated values = 40 - 34 = 6

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The length of a rectangular storage room is 3 feet longer than its width. if the area of the room is 40 square feet, find the wi

xenn [34]

Answer:

Width of rectangular storage room= 5 feet.

Step-by-step explanation:

Let x be the width of storage room.

We have been given that the length of a rectangular storage room is 3 feet longer than its width. So the length of storage room will be x+3.

We are also given that the area of the room is 40 square feet.

Since the area of a rectangle is length times width.

$\text{Area of rectangle}=\text{Length* Width}$

Let us substitute our given values in area formula.

$40=x*(x+3)$

Upon distributing x we will get,

$40=x^2+3x$

$x^2+3x-40=0$

Now let us factor out our quadratic equation using splitting the middle term.

$x^2+8x-5x-40=0$

$x(x+8)-5(x+8)=0$

$(x+8)(x-5)=0$

$x+8=0$ or $x-5=0$

$x=-8$ or $x=5$

Since width can not be negative, therefore, the width of rectangle will be 5 feet.

Let us verify our answer.

Length of rectangular storage room is 3 feet longer than its width. So length will be 5+3=8.

Given: Area=40 square feet.

5*8=40.

Hence, width of rectangular storage room is 5 feet.

7 0

3 years ago

I always get terribly confused on these, please show work?

VLD [36.1K]

You are finding the square root of 121
*the answer is 11*
because if you times 11 by its self you get 121

8 0

3 years ago

Read 2 more answers

Which of the following represents three times answer minus 5?

bazaltina [42]

Answer:

3(y)-5

Step-by-step explanation:

3: 3

y: as the answer

-: minus

5: 5

5 0

4 years ago

Solve for x: (6x-3). QUICK!!!

Nana76 [90]

3(2x-1 does this help you?

3 0

3 years ago

Is (x + 2) a factor of 3x3 + 4x2 - 4 ?

nordsb [41]

Answer:

No it is not a factor

Step-by-step explanation:

Reason for not being a factor is 3x^3-4x^2-4x. 3x3−4x2−4x 3 x 3 - 4 x 2 - 4 x. Factor x x out of 3x3−4x2−4x 3 x 3 - 4 x 2 - 4 x

5 0

3 years ago

Find the difference between the actual and estimated values of 55 - 21​

Find the difference between the actual and estimated values of 55 - 21