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sweet [91]
3 years ago
9

Solve for the indicated variable. 8y + 7x = 9 for x

Mathematics
2 answers:
neonofarm [45]3 years ago
4 0

Answer:

8y + 7x-7x=x-7x

8y=-6x

So am not sure but hope I helped maybe u can get a solution or way to answer the question

shtirl [24]3 years ago
3 0

Answer:

x = 9-8y/7

Step-by-step explanation:

8y+7x=9

Subtract 8y from both sides.

7x=9−8y

Divide both sides by 7.

7x/7 = 9 - 8y/7

​  

 

Dividing by 7 undoes the multiplication by 7.

x = 9-8y/7

​  

 

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A golfer’s arm rotates 1/2 of a revolution in 1/10 of a second. If the angular displacement is measured in radians, which statem
anyanavicka [17]
We know that

<span>The angular velocity is 10π rad/sec
step 1
convert to rad/min
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the answer is the option 
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6 0
2 years ago
Read 2 more answers
The sales of a certain product after an initial release can be found by the equation s=16√7t+62 where s represents the total num
Aleonysh [2.5K]
You want to replace the s with 150 in the equation and then just solve for t.
150=16√7t +62    subtract 62 from both sides
88=16√7t              divide both sides by 16
5.5=√7t                to get rid of the square root  square both sides. 
30.25=7t              now divide both sides by 7
4.3 = t (approximately) 
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3 0
3 years ago
Read 2 more answers
For all of the questions <br>with method <br>thankyou​
Dmitry_Shevchenko [17]

Answer:

(i) 7/10

(ii) 3/10

(iii) 1/5

(iv) Rs 40,000

Step-by-step explanation:

The fraction of the salary spent on food = 1/2

The fraction of the salary spent on rented house fee = 1/5

(i) The fraction spent for both food and rental fee = (1/2) + (1/5) = (5 + 2)/10 = 7/10

(ii) The remainder (rest) of the salary = 1 - 7/10 = 3/10

The fraction of the remainder spent for children's education = 1/3

The fraction of the total salary spent for the children's education = (1/3) × (3/10) = 1/10

(iii) The remaining portion deposited in the bank = 1 - (1/10 + 7/10)) = 2/10 = 1/5

(iv) The amount equal to portion of 1/5 of his salary deposited in the bank is Rs 8000

Let <em>x</em> represent his whole salary, we have;

(1/5) × x = Rs 8,000

x = 5 × Rs 8,000 = Rs 40,000

His whole salary is Rs 40,000.

3 0
3 years ago
Is the number rational or irrational? Explain. <br><br> A. -38 <br><br> B. 400 <br><br> C. 2 3 27
Alik [6]
A.  No, because -38 isn't a fraction.

2, No because 400 is a real number.

3. Yes because fractions, decimals, and percents are rational numbers.


hope that helped
6 0
3 years ago
Describe how you would convince a friend that sin(x + y) does not equal sin x + sin y.
Citrus2011 [14]

Answer:

Step-by-step explanation:

PEMDAS

anything done in the parentheses comes first

so you have to add first then multiply

this is not the distributive property unless the two numbers in parentheses are not like terms

4 0
3 years ago
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