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OLEGan [10]
3 years ago
14

Use the order of operations to simplify the expression: 23 + 5 × 10 ÷ 2 – 33 + (11 – 8)

Mathematics
2 answers:
Ludmilka [50]3 years ago
5 0
Here you must do mult. and div. BEFORE add'n. and subtr'n.

<span>23 + 5 × 10 ÷ 2 – 33 + (11 – 8)
Mult 5*10, and then div. the result by 2.  Then you will have

23 + 25 - 33 + 3
This simplifies to:  51-33 =   18</span>
madreJ [45]3 years ago
5 0
Use PEMDAS. (Multiplication & divison + addition & subtraction are not in order, solve it from left to right)
Parentheses
Exponents
Multiplication
Division
Addition 
Subtraction

23 + 5 × 10 ÷ 2 - 33 + (11 - 8) 
Do the parentheses first. 

23 + 5 × 10 ÷ 2 - 33 + (3)
Now do multiplication since its first when you read the problem from left to right.

23 + 50 ÷ 2 - 33 + 3
Use division.

23 + 25 - 33 + 3
Now you can solve from left to right.

48 - 33 + 3
15 + 3
18

Using the order of operations, the expression can be simplified to 18.
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Eva8 [605]

Answer:

256

Step-by-step explanation:The total amount os students is 1640 which is equivalent to 100% so we get 50% of 1640 which is equall to 820 students after that we also find 35% of 1640 which is equall to 564 students. After that we sum them up which we get 1384 students and subtract it from 1640 and get 256 students.


8 0
4 years ago
Please answer quickly, (1 question, 30 pts) thanks!
kaheart [24]

Step-by-step explanation:

once the level of medicine reaches a value, where 30% are 23mL (so, whatever is lost, is immediately replaced again), that is then the long run value for the amount of the drug in the patient's body.

so,

30% = 23 mL

1% = 30%/30 = 23/30 = 0.766666666...

100% = 1%×100 = 0.766666666... × 100 = 76.666666...

so, once the level reaches 76.666666... mL in the body, it will remain constant, as the daily filtered out 30% are 23 mL, and the daily add-on is also 23 mL.

so, the answer is

76.667 mL

5 0
2 years ago
30 points!!! Find the area of each. Round to the nearest tenth. Do not include units in
Ronch [10]

Answer:

Area of triangle = 8.9

Area of parallelogram = 53.4 yd² (option A)

Step-by-step explanation:

✔️Area of the triangle = ½*base*height

base = 3 m

height = 5.9 m

Area of triangle = ½*3*5.9

Area of triangle = 8.85 ≈ 8.9 (nearest tenth)

✔️Area of parallelogram = base*height

base = 8.9 yd

height = 6 yd

Area of parallelogram = 8.9*6 = 53.4 yd²

4 0
3 years ago
What is the volume of a right cone having a base diameter of 10 cm and a height of 9 cm?
lions [1.4K]

Answer:

volume  =  (1/3)(area of base)(height)

area of base  =  pi * radius2  =  pi * (10/2)2  =  pi * 52  =  25pi   cm2

volume  =  (1/3)( 25pi )( 9 )   cm3

volume  =  75pi   cm3

volume  ≈  236  cm3  

<h2>plz give me brainliest :)) !!!!</h2>
3 0
3 years ago
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740 because if u add and subtract
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