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Ksivusya [100]
3 years ago
7

(05.08)Solve for x: 7 over 8 minus 1 over x equals 3 over 4.

Mathematics
2 answers:
NemiM [27]3 years ago
8 0

If you are asking 7/8 - 1/x= 3/4,

first put 3/4 to 6/8 to make it easier.

Move the 7/8 over to the right. You will get 1/x=-1/8.

Simplify, it is x=-8.

Check=7/8 - 1/8=6/8

It checks out.

Blizzard [7]3 years ago
7 0

Answer:

x=8

Step-by-step explanation:

We have been given an equation \frac{7}{8}-\frac{1}{x}=\frac{3}{4}. We are asked to solve for x.

To solve our given equation, we will multiply both sides of our given equation by least common multiple of 8, 4 and x that is 8x.

\frac{7}{8}*8x-\frac{1}{x}*8x=\frac{3}{4}*8x

7x-8=6x

Now, we will switch sides of our equation.

6x=7x-8

6x-7x=7x-7x-8

-x=-8

\frac{-x}{-1}=\frac{-8}{-1}

x=8

Therefore, the solution for our given equation is x=8.

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Answer:

the slope is -2/1

Step-by-step explanation:

(10,-9) and (3,5)

y2-y1/ x2-x1

5-(-9)/3-10

14/-7

3 0
3 years ago
If Isaac uses a coupon entitling him to a 25% discount off the purchase price before tax, how much will his bill be? Assume that
lions [1.4K]

Answer:

b) 25/100 x 79

= 19.75

= 79 - 19.75

= $59.25 (before tax)

7/100 x 59.25

= 414.75/100

= 4.15

= 59.25 + 4.15

= $63.4 (after adding tax)

First we have to take out the percentage of discount and minus it from the total cost . To find the discounted price with tax, we have to take out the percentage of the tax from the discounted amount and add it to the discounted amount to get the total cost.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the difference between the smallest 6-digit whole number and the greatest four digit whole number
kupik [55]
First, lets start with the greatest 4-digit number. That would be 9,999.99999999999, with 9 to ∞, because the next number is a 5-digit number. The smallest 6-digit number is 100,000, because the number preceding 100,000 is a 4 digit number. To find difference, you have to subtract. 100,000 minus 9,999.9999 continued gives you 90,000.000000 to ∞ with a one with 1 at the end. You would write 90,000.01 with bar notation over only the 0 to indicate that it goes on to infinity.
6 0
3 years ago
The distance traveled by a certain vehicle varies directly to the amount of fuel the vehicle consumes. The vehicle traveled 90 m
olga_2 [115]

Answer:

The vehicle covers 126 miles on 7 gallons of fuel.

Step-by-step explanation:

Given:

The distance traveled is directly proportional to the amount of fuel.

For F gallons of fuel distance traveled D miles can be given as:

D ∝ F

D=kF

where k is constant of proportionality.

The vehicle covers D=90 miles on F=5 gallons.

So

90=k(5)

Dividing both sides by 5.

\frac{90}{5}=\frac{k(5)}{5}

18=k

∴ k=18

When F=7 gallons

D=(18)(7)

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4 0
3 years ago
Find the vertex of the function given below.<br><br> y= x2 - 6x +1
Helga [31]

Answer:

V( 3, -8 )

Step-by-step explanation:

Parable equation is of the form:

( x - h )² = 4p*(y - k)

In that expression, vertex has coordinates V ( h, k )

Then all we have to do is transform the given equation

y = x² - 6x + 1       or     x² - 6x  = y - 1          (1)

We can get a  perfect square trinomial in the first member of the equation according to:

x²  -  6x   =   ( x - 3 )²  - 9

(x - 3 )²   = x² - 6x  + 9

By substitution  en equation (1)

( x - 3 )² - 9 = y - 1

( x - 3 )² = y -1 + 9

( x - 3 )² = y + 8

( x - 3 )² = (y + 8 )

Then vertex coordinates are

V( 3 , -8)

3 0
3 years ago
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