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guapka [62]
3 years ago
5

Seven students cut 5 and three-fourths inches of thread from a spool for a school project. What number represents the change in

the amount of the thread on the spool?
Mathematics
2 answers:
dalvyx [7]3 years ago
4 0

Answer:

-40 1/4

Step-by-step explanation:

erik [133]3 years ago
3 0

Answer: -40 1/4

Step-by-step explanation:

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What is 7d+10=42 is that correct
uysha [10]

Answer:

No, it is not correct, d has no value so it is 17d. if d did have a value though then d would equal around 4.6

Step-by-step explanation:

4 0
3 years ago
On the average, a certain light bulb is supposed to last 450 hours. If it
Dafna1 [17]

Answer:

72 novels

Step-by-step explanation:

A number of assumptions are involved regarding operating environment, utilization fraction, and probability of failure as a function of time. The precise meanings of the words "average", "supposed to last", "maximum", and "expect" are involved. The details are too arcane to go into here.

 (450 hours)/(6 1/4 hours/novel)

 = (450/(25/4)) novels

 = (450*4/25) novels

 = 72 novels

6 0
3 years ago
Can anyone help with these maths questions about transformations please?
salantis [7]
A. Reflection over y = 2

B. Reflection over y axis, reflection over y = 1

C. I'm guessing you just have to draw this one, just put the center on (2,0) and enlarge it by the scale factor
8 0
3 years ago
you have to answer 3 essay questions for an exam. there are 6 essays to check choose from. how many different groups of 3 essays
Elis [28]
According to the fundemintal counting princable the answer is 18. 
5 0
3 years ago
Arbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of drinks sh
pashok25 [27]
If ice tea is lets say y (ice tea = y) and water is x (water = x) then the answer is 
1.25x + 1.49y = 100
the error is that she forgot the second variable(y).
8 0
2 years ago
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