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PIT_PIT [208]
3 years ago
13

Solve for y. 15x -5y = 10thank you.​

Mathematics
2 answers:
Setler79 [48]3 years ago
6 0

Answer:

Step-by-step explanation:

15x - 10 = 20

15x = 20 + 10

15x = 30 (divide both sides by 15 to get x)

15x/15 = 30/15

x = 2

Molodets [167]3 years ago
3 0

Answer:

y & x = 2, but since you only need y, y=2

Step-by-step explanation:

15 x 2 = 30

5 x 2 = 10

30 - 10 = 20

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A straw has a diameter of 0.6cm and a length of 19.5 cm. What is the surface area of the straw round to the nearest tenth. Use 3
Nadusha1986 [10]

Answer:

37.3032cm^2

Step-by-step explanation:

Given data

Diameter= 0.6cm

Radius= 0.3cm

Lenght = 19.5cm

Surface area (A) =2πrh+2πr^2

Substitute

A=2*3.14*0.3*19.5+2*3.14*0.3^2

A=36.738+0.5652

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Hence the surface area is

37.3032cm^2

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3 years ago
Complete the number pattern for 3,400,00 34,000 ______ 3.4 ______
Dmitrij [34]

The blank answers are 340 and 0.34

5 0
3 years ago
Suppose a normal distribution has a mean of 222 and a standard deviation of 16. What is the probability that a data value is bet
valentina_108 [34]
Mean of the distribution = u = 222
Standard Deviation = s = 16

We have to find the probability that a value lies between 190 and 230.

First we need to convert these data values to z score.

z= \frac{x-u}{s}

For x = 190, 
z= \frac{190-222}{16}=-2

For x = 230
z= \frac{230-222}{16}=0.5

So, we have to find the percentage of values lying between z score of -2 and 0.5

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From standard z table, we can find and use these values.

P(-2 < x < 0.5 ) = 0.6915 - 0.0228 = 0.6687

Thus, there is 0.6887 probability that the data value will lie between 190 and 230 for the given distribution. 

5 0
3 years ago
Find the missing term and the missing coefficient of the following equation: (6a −______)5a =______a^2 − 35a
sergiy2304 [10]
The missing term in the left side of the equation is 7. Therefore:

(6a-7)5a

On the other hand, the missing coefficient in the right side of the equation is 30. Therefore,

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Combining the left and right sides of the equation:

(6a-7)5a = 30a^2-35a

I hope my answer has come to your help. Thank you for posting your question here in Brainly.


5 0
3 years ago
Read 2 more answers
the number of pizzas eaten at the class party is equal to one-fourth and number of students plus two more pizzas for the adults
maria [59]
If s represents the number of students, then the number of pizzas is
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  s = 28 . . . . . . multiply by 4

There are 28 students.
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3 years ago
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