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Vladimir [108]
3 years ago
6

If a coordinate pair (x, y) makes the equation 4x + 5y = −5 true, which of the following statements is true?

Mathematics
2 answers:
Sholpan [36]3 years ago
7 0
Its a and c that is true
forsale [732]3 years ago
6 0

i believe it is either b or c

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Every week i eat 10 waffles and drink 5 cups of milk .Which ratio is equivalent to the waffled.i eat to the milk i drink​
Semenov [28]

Answer:

2:1

Step-by-step explanation:

7 0
3 years ago
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Linda purchase a prepaid phone card for $30. Long distance calls cost $.17 a minute using this card when do use her card. Linda
balandron [24]

Answer: her call lasted for 44 minutes

Step-by-step explanation:

Linda purchase a prepaid phone card for $30. This means that the credit on her card is $30.

Long distance calls cost $0.17 each. Linda use her card only to make a long distance call. Assuming she made a total of x minutes of long distance calls, the cost would be $0.17x. The amount remaining on her card will be

30 - 0.17x

if the remaining credit on her card is $22.52, the number of minutes,x that the call lasted will be

22.52 = 30 - 0.17x

0.17x = 30 - 22.52

0.17x = 7.48

x = 7.48/0.17 = 44

7 0
3 years ago
Normal Distribution. Cherry trees in a certain orchard have heights that are normally distributed with mu = 112 inches and sigma
Lubov Fominskaja [6]

Answer:

The probability that a randomly chosen tree is greater than 140 inches is 0.0228.

Step-by-step explanation:

Given : Cherry trees in a certain orchard have heights that are normally distributed with \mu = 112 inches and \sigma = 14 inches.

To find : What is the probability that a randomly chosen tree is greater than 140 inches?

Solution :

Mean - \mu = 112 inches

Standard deviation - \sigma = 14 inches

The z-score formula is given by, Z=\frac{x-\mu}{\sigma}

Now,

P(X>140)=P(\frac{x-\mu}{\sigma}>\frac{140-\mu}{\sigma})

P(X>140)=P(Z>\frac{140-112}{14})

P(X>140)=P(Z>\frac{28}{14})

P(X>140)=P(Z>2)

P(X>140)=1-P(Z

The Z-score value we get is from the Z-table,

P(X>140)=1-0.9772

P(X>140)=0.0228

Therefore, the probability that a randomly chosen tree is greater than 140 inches is 0.0228.

5 0
3 years ago
A normal distribution has a mean of 30 and a standard deviation of 6
san4es73 [151]
I forgot all about this :(
8 0
4 years ago
Find the unit rate of miles per hours of a plane that travels 3610 miles in 33.5 hours
Alik [6]
Plane would be going 107.761194. 3610 divided by 33.5 is about 107
3 0
3 years ago
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