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Setler79 [48]
2 years ago
15

a student did an experiment and determined the percent sugar in a piece of gum to be 67%. The accepted value for th percent suga

r in a piece of gum is 74%. what is the percent error in the students' calculations?
Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
6 0
I don’t know, I need points
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At a café, a cup of coffee costs $2.82. To use exact change, you must hold the number 2.82 in your head while sorting through yo
Stolb23 [73]

Answer:

Working memory

Step-by-step explanation:

Working memory is a system the brain uses  for temporarily storing and managing the information required to carry out complex cognitive tasks. The central executive part of the prefrontal cortex at the front of the brain is responsible for working memory. It serves as a temporary store for short-term memory, where information is kept available while it is needed for current reasoning processes.

So to be successful in holding the number 2.82 in my head while sorting, one must keep the information maintained in short-term storage by using one's working memory.

5 0
3 years ago
Here is Laila’s graph from the previous screen.
lidiya [134]

Answer:

y=-1/3x+8

Step-by-step explanation:

There is no need for any specific answers, but here is one that could logically work out. Since the graph is going left/down, it has a negative slope, so -1/3 would be reasonable. The graph doesn't cross the origin and crosses above it, so this equation must have a positive 'b' value. In this case, I chose 8. y=-1/3+8 could represent Laila's graph.

4 0
3 years ago
Please Help!! I WILL MARK BRAINLIEST
victus00 [196]

Answer:

f-¹(x) = 2x – 8

f-¹(4) = 2(4) – 8 —> f-¹(4)= 8 - 8 =0

7 0
2 years ago
X/14=40/70 Solve the proportion for x.
vodomira [7]

Answer:

8

Step-by-step explanation:

\frac{x}{14}  =  \frac{40}{70}  \\ x =  \frac{40}{70}  \times 14 \\ x =  \frac{40}{10}  \times 2 \\ x = 4 \times 2 \\ x  = 8

3 0
3 years ago
Total of 380 tickets were sold for the school play. they were either adult tickets or student tickets. there were 70 fewer stude
Bogdan [553]
Let the amount of adult tickets sold be x

Since the total of 380 tickets sold consists of the amount of adult tickets and the amount of children tickets that are 70 fewer:

x + (x - 70) = 380
2x - 70 =380
2x = 450
x = 225

Therefore, the amount of adult tickets sold is 225

8 0
3 years ago
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