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olga_2 [115]
3 years ago
9

Help me please guys.....

Mathematics
1 answer:
KiRa [710]3 years ago
5 0

The answer is C 1, 3 and 4

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Amanda purchased a prepaid phone card for $20. Long distance calls cost 11 cents a minute using this card. Amanda used her card
lutik1710 [3]

Answer:

29 minutes?

i divided 3.19 by 11 (20 - 16.81 is 3.19) and i got 29 so i think it is that amount of minutes

5 0
3 years ago
A washer and a dryer cost $736 combined. The washer costs $36 more than the dryer. What is the cost of the dryer?
Alina [70]

Answer:

700

Step-by-step explanation:

736-36=700

7 0
3 years ago
Read 2 more answers
Calculate size of angle x. I worked out CA=14cm
nikdorinn [45]

Answer:

∠x = 13.43°

Step-by-step explanation:

area ΔABC = 1/2 ( BD x AC) = 1/2 (22 x AC) = 42

22 x AC = 84        AC = 84/22 = 42/11 = 3.82

CD = BD - BC = 22 - 6 = 16

AD² = AC² + CD² = (3.82)² + 16² = 270.59

AD = 16.45

sin ∠x = AC / AD = 3.82 / 16.45 = 0.2322

∠x = 13.43°

5 0
3 years ago
This Stem-and-Leaf Plot represents the heights of the students on Ralph’s basketball team. One student’s height is missing from
kompoz [17]

Using the mean of the data-set, it is found that the missing height in the stem-and-leaf plot is given by:

D. 65 in.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, following the key of the stem-and-left plot, there are 8 observations, given as follows:

54, 55, 56, 61, 63, 64, 70 and the missing value x.

The mean is of 61, hence:

61 = \frac{54 + 55 + 56 + 61 + 63 + 64 + 70 + x}{8}

423 + x = 61 x 8

x = 65.

Hence option D is correct.

More can be learned about the mean of a data-set at brainly.com/question/24628525

#SPJ1

6 0
2 years ago
A farm has cows and ducks. There are 78 feet and 27 heads how many of each Animal are there? How do you know?
LenKa [72]
105 Animals....You know that because when you add together the head & feet that's adding all the animals together​ to get the total number of animals
4 0
3 years ago
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