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geniusboy [140]
3 years ago
8

Tom has saved $128, and his goal is to save $500. how much more must he save? which equation best represents this situation?

Mathematics
2 answers:
Margaret [11]3 years ago
7 0
He gone have to save 372 more
Vladimir79 [104]3 years ago
4 0
He must save $372 more dollars; 500-128=x
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Julio walks 1/5 miles in 3/2 hours how far does he walk in one hours
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3 1/2 ÷ 1 1/4
7/2 ÷ 5/4
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2.8

Julio walks 2.8 miles in one hour.
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2 years ago
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1) A dog eats 12 of a cup of dog food per meal. How many meals are in a 6-cup bag of dog food?
malfutka [58]

Answer:

1/2

Step-by-step explanation:

The dog has 12 for 1 meal.

12=1

6 is half of 12.

6=1/2

4 0
3 years ago
The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with l=0.0003
Dvinal [7]

Answer: 0.0497870 ; 0.87754

Step-by-step explanation:

Given that :

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Defining a continuous distribution function :

F(x) = 1 - e^-λx = 1 - e^-0.0003x ; x ≥ 0

a. What proportion of the fans will last at least 10,000 hours?

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b. What proportion of the fans will last at most 7000 hours?

P(x ≥ 7000) = 1 - p(x ≤ 7000) = 1 - e^-0.0003(7000)

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3 0
3 years ago
Solve using the square root method X2=25<br>​
aleksandrvk [35]

Answer:

Square root =

remember :

\boxed {x^2 = \pm a}

x² = ± a

x = ña

.

x = ñ25

x = ±5

• x = 5 and -5

8 0
3 years ago
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The temperature, t, in degrees Fahrenheit, can be found by counting the number of cricket chirps, c, heard in 14 seconds and the
dem82 [27]
Answers:
- All values of t must be positive
- A viable solution is (10, 50)


- All values of t must be positive. 
EXPLANATION
t, temperature (in Fahrenheit) is dependent on c
c is the number of cricket chirps heard in 14 seconds
Therefore, all values of c must be positive integers
If all values of c must be positive integers
Then all values of t must also be positive integers

- A viable solution is (10, 50).
EXPLANATION
t = c + 40
Since 10 is a positive integer, it is a possible value for c

If c = 10
t = 10 + 10
t = 50
Therefore a viable solution is (10, 50)

EXPLANATION FOR WHY OTHER OPTIONS ARE WRONG:
- The graph is continuous. 
This is WRONG because this function only allows the values of c to be only certain points in the interval (only positive integers). Therefore, it is a discrete function.

- A viable solution is (–2, 38)
This is WRONG because the -2 is a negative integer, and the value of c cannot be a negative integer.

- A viable solution is (0.5, 40.5)
This is WRONG because 0.5 is not an integer, and all values of t must also be positive integers.
5 0
3 years ago
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