3 years ago

Explain how you could determine whether a calculator correctly performs the order of operations

Mathematics

2 answers:

Eva8 [605]3 years ago

5 0

Use photo math it shows you the steps it takes to get the answer.

Talja [164]3 years ago

3 0

You could always do your work on a piece of paper and compare answers.

You might be interested in

Treys online music club charges a monthly rate of $20 plus $0.80 per song download. Debs online music club charges a monthly rat

blondinia [14]

For this case, the first thing we must do is define variables.
We have then:
x: number of songs.
y: total charge
For Treys online music club:
 $y = 0.80x + 20
$
 For Debs online music club:
 $y = 0.60x + 21
$
 Equaling both equations we have:
 $0.80x + 20 = 0.60x + 21
$
 Clearing x we have:
 $0.80x - 0.60x = 21 - 20

0.20x = 1

x = 1 / 0.20

x = 5 songs$ 
Substituting the value of x for any of the equations we have:
 $y = 0.60 (5) + 21

y = 3 + 21

y = 24 $$
 Answer:
The monthly charge will be the same for 5 songs in both clubs.
the cost will be $ 24

6 0

3 years ago

Read 2 more answers

The square of x varies directly as the cube of y. When x = 2, and y = 4, find y when x = 8.

pychu [463]

Answer:

y = 16

Step-by-step explanation:

4 0

3 years ago

The chicken increased by $0.98, from $6.50 to $7.48. What is the percent change in the cost of this meal? Show your proportion a

ryzh [129]