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yarga [219]
3 years ago
10

Solve for x: (5x + 9) (8x - 30)

Mathematics
1 answer:
Alik [6]3 years ago
4 0

Answer:

112x-420

Step-by-step explanation:

(5x + 9)  (8x - 30)

distribute 5x into (8x-30)

then same with 9 into (8x-30)

then combine like terms and u will get da answer

hope this helps with da pic dat i attach  

Download docx
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There are a total of 15 bicycles and tricycles.There are 37 wheels all together if we count them up. How many tricycles and how
m_a_m_a [10]

Answer: there are eight bicycles and 7 tricycles.

Step-by-step explanation:

Let x represent the number of bicycles that are there.

Let y represent the number of tricycles that are there.

There are a total of 15 bicycles and tricycles. This means that

x + y = 15

A bicycle has 2 wheels and a tricycle has 3 wheels. There are 37 wheels all together if we count them up. This means that

2x + 3y = 37- - - - - - - - - - - - - 1

Substituting x = 15 - y into equation 1, it becomes

2(15 - y) + 3y = 37

30 - 2y + 3y = 37

- 2y + 3y = 37 - 30

y = 7

x = 15 - y = 15 - 7

x = 8

7 0
3 years ago
A farmer has 60 bakes of hay in his barn . He feeds his cows 4 bakes each day .Which graph represent the number of bales in the
alex41 [277]
The answer should be B  because 4*4=16 so 60 -16 a day
5 0
4 years ago
Will give brainlest<br> What is the result of adding these two equations? − 2x+7y= −5 −2x−4y= 6
Inga [223]

Answer:

All you have to do is combine the like terms. Once you do that you get: -4x+3y=-11

4 0
3 years ago
Beth poured the same amount of juice into 10 glasses.She used 2 quarts of juice.How much juice is in each glass
agasfer [191]
6.4 ounces. 

You can get this by first converting to ounces which is a smaller value. Then you can divide by 10. 
7 0
3 years ago
What is most likely the correlation coefficient for the set of data shown shown
satela [25.4K]

Answer:

C) 0.19

Step-by-step explanation:

A correlation coefficient is a measure of how well the line of best fit fits the data.  The higher the correlation coefficient, up to 1.0 or -1.0, the better the fit. A positive correlation coefficient means an increasing data set, while a negative correlation coefficient means a decreasing data set.

We can see that this line of best fit is increasing, so our correlation coefficient will be positive.

However we can also see that the points are fairly scattered; this means this is not a very good fit.  This means that 0.19 is the better fit.

6 0
3 years ago
Read 2 more answers
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