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2 years ago

Which is a good comparison of the estimated sum and the actual sum of 7 7\8 + 2 11\12

Mathematics

2 answers:

navik [9.2K]2 years ago

6 0

Estimate: 8+3 or 11.
Actual Sum: 10 76/96 or 10 19/24

sasho [114]2 years ago

3 0

Seven and seven eighths rounds up to eight. Two and eleven twelfths rounds to three. Estimate equation: 8+3=11. Now you know your answer should be around 11. Then to find your actual answer you have to find the common denominator! If u need anymore help ask me! Hope I helped!

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This graph shows which inequality? **one is the graph and the other are answers*

EastWind [94]

Answer:

It is Greater than or equal to -3

Reason:

A filled dot means greater/less than or equal to.

4 0

2 years ago

Read 2 more answers

Please explain (picture attached)

Dafna1 [17]

Answer:

I think the answer is C.

Step-by-step explanation:

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3 years ago

An 8 by 19 ft wall has three 4 by 5 windows. the area of the entire wall [including the windows]

ollegr [7]

The area of the wall including the windows is 152ft

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2 years ago

saw5 [17]

The above expression is not in its simplest form, and we need to simplify it, that is what asked in the question.

Given equation,

$(9 {x}^{2} - 3x + 7) + ( - 3 {x}^{2} + 2)$

First of all, let's open the parentheses to combine the like terms for simplifying.

$9 {x}^{2} - 3x + 7 - 3 {x}^{2} + 2$

Arranging the like terms, x² with x², x with x and constant terms near to each other.

$9 {x}^{2} - 3 {x}^{2} - 3x + 7 + 2$

Simplying further,

$(9 - 3) {x}^{2} - 3x + 9$

$6 {x}^{2} - 3x + 9$

So, the correct option is C

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8 0

3 years ago

The dimensions of a rectangular prism are shown below: Length 2 1/4 ft | width 1 ft | height 1 1/4 ft.

zysi [14]

Answer:

See below

Step-by-step explanation:

Dimensions given:

l = 2 1/4 ft, w = 1 ft, h = 1 1/4 ft

A small cube has side of 1/4 ft

Find the number of small cubes can fit in each dimension of the prism.

Length

2 1/4 : 1/4 = 9/4 * 4 = 9

Width

1 : 1/4 = 1 *4 = 4

Height

1 1/4 : 1/4 = 5/4 * 4 = 5

Part A

Number of small cubes would be:

9*4*5 = 180

Part B

Each small cube has volume:

V = (1/4)³ = 1/64 ft³

The volume of the prism in terms of small cubes is 180 as we found above.

The volume in terms of unit cube:

V = 180*1/64 = 180/64 = 2 52/64 = 2 13/16 ft³ or 2.8125 ft³

4 0

1 year ago