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kobusy [5.1K]
3 years ago
8

-24+(-5.2+7.2)-(-23-9.4)

Mathematics
1 answer:
nika2105 [10]3 years ago
5 0
This is a question testing your knowledge of order of operations.  When we look at a problem we have to do certain things 1st.  The order in which we attack these things is the order of operations.  PEMDAS is the acronym for the order parentheses, exponents, multiplication, division, addition, and subtraction and this is the way we need to look at all problems in math.  For this equation...

-24 + (-5.2 + 7.2) - (-23 - 9.4)=

First solve inside the parentheses

-24 + (2) - (-32.4) =

Simplify (don't forget minus a negative means plus positive)

-22 + 32.4 = 10.4
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Each morning a deli worker has to make several pies and a bucket of potatoes. On Monday, it took the worker 2 hours to make the
Gala2k [10]

The quantities include hours and minutes.

The the known and unknown quantities can be used to write an equation and this gives 60 minutes.

<h3>How to explain the information?</h3>

It should be noted that there are two different units of time measurement and these are hours and minutes. In this case, once can either convert the hours given to minutes or vice versa.

Therefore,

2 hours = 120 minutes, and

2.5 hours = 150 minutes.

If x represents the number of potatoes in the bucket, then the time to peel all of the potatoes on the first day will be 1.5x.

The quantity added to the 120 minutes spent making pies is the total elapsed time for the first day's work. The first days time is equal to the second day. This will be:

120 + 1.5x = 150 + x

1.5x - x = 150 - 120

0.5x = 30

x = 30/0.5 = 60

The time taken is 60 minutes.

Learn more about quantities on:

brainly.com/question/26044328

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1 year ago
Create a list of 5 potential jobs that students of meteorology can obtain.
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3 years ago
The measures of two supplementary angles total 180 degrees. The measure of angle y is 65 degrees less than the measure of angle
iVinArrow [24]
The measures of the angles are given to be x and y. Since y is 65 degrees less than the measure of angle x then, it can also be expressed as x - 65. The sum of the angles x and y should be 180 degrees as they are supplementary angles, 
                                    x + y = 180
                                   x + (x - 65) = 180
The value of x is 122.5 and that of y is 57.5. Therefore, the measures of the angles are 122.5 and 57.5.
3 0
3 years ago
Please help me find BD
Tanzania [10]

9514 1404 393

Answer:

  14 units

Step-by-step explanation:

The angle bisector divides the sides proportionally, so you have ...

  (x+4)/8 = (2x+1)/12

  3(x +4) = 2(2x +1) . . . . . . multiply by 24

  3x +12 = 4x +2 . . . . . . . . eliminate parentheses

  10 = x . . . . . . . . . . . subtract (3x+2)

Then BD = x+4 = 10 +4.

The length of BD is 14 units.

_____

<em>Additional comment</em>

The "triangle" cannot exist, as the side lengths are shown as 8, 12, and 35. The long side is too long. Nice math; bad geometry.

8 0
2 years ago
Which property do i use to solve x-10=15
Stells [14]
Add both sides by 10

x=25
3 0
3 years ago
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