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AVprozaik [17]
3 years ago
5

What is -0.8- (-1.6)?

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0

Answer:

0.8

Step-by-step explanation:

mart [117]3 years ago
8 0

Solution:

0.8

Step by step explanation:

1) (0- 8/10) - (0-8/5)

2) Simplfy. 4/5

3) (0-4/5) - (-8/5)

4) (-4) - (-8)/5 = 4/5

Final result: 4/5= 0.8000

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Which ratio expresses the scale used to create this drawing? The school has dimensions of 18 feet by 18 feet.
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Answer A 1 square/2 feet=9 squares/18 feet
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2 years ago
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A house costs $600 more than twelve times the lot on which it was built. If the lot cost x dollars, what did the house cost? Whi
Mnenie [13.5K]
House=600+12lot
lot=x
house=600+12x

answer is first expresion
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2 years ago
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Giving 25 points for whoever answers it with a complete explanation .. ASAP
MAXImum [283]
No, it is not a function.
Since all the lines have been drawn in the grid line do not have any connection between them even a point in common.
I hope this has been useful for you.
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2 years ago
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The annual 2-mile fun-run is a traditional fund-raising event to support local arts and sciences activities. It is known that th
victus00 [196]

Answer: 0.0228

Step-by-step explanation:

Given : The  mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

\mu=30\\\\\sigma=5.5

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.

Let X be the random variable that represents the finish times for this event.

z score : z=\dfrac{x-\mu}{\sigma}

z=\dfrac{19-30}{5.5}=-2

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

P(X

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8 0
2 years ago
The cost per week of running a boarding house is partly constant and partly
patriot [66]

Answer:

the cost of running the boarding

house for 600 students is N61,000

Step-by-step explanation:

Let C represents cost

K1 represents first constant

K2 represents second constant

C= k1+k2n

3500 = k1 + 25 k2............. Eqn(1)

6000= k1 + 50 k2 .............. Eqn(2)

Subtract eqn(1) from eqn(2)

2500= 25k2

K2= 2500/25

K2= 100

To get k1 from eqn(1)

3500 = k1 + 25 k2

Substitute the value of k2

3500 = k1 + 25 (100)

3500= k1 +2500

K1= 3500- 2500

K1= 1000

The equation connecting them;

C= 1000+ 100n

The cost of running the boarding

house for 600 students is

n= 600

C= 1000+ 100(600)

C= 1000+60000

C= N 61,0000

6 0
2 years ago
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