Does the equation have one solution, no solutions, or all solutions? 7x + 4 = 9(x-1)

Answers

Answer 1

One solution
Explanation:
First you remove the parenthesis
28=9x-9
Then you calculate
-9x = -9 - 28
Then you divide both sides
-9x = -37
Solution: 37/9
Alternative form:
4 1/9 or 4.1
Note: these are all the same solutions, they are just in different forms

Related Questions

Im so lost i dont get it

Answers

X always = 1
9-1x<-11

Which means
X>20 is your answer !

Kenzie buys hair scrunchies. The cost for 20 scrunchies is $3.00.
The cost, c, for scrunchies is proportional to the number, n, of scrunchies.
Create an equation using n and c.
________________________________________________
Kenzie has $7.25. What is the maximum number of scrunchies she can buy?
______________________________

Answers

Answer:

Step-by-step explanation:

20 scrunchies=3 dollars

7.25 dollars = ?

1 dollar=6.66666666

0.25 dollar=1.666666666666

7*6.66666666=46.666666

Answer:

Kenzie can buy 48 Scrunchies

Step-by-step explanation:

You have to divide 3 by 20. (3/20) Which is also 1.5/10 and as a decimal, that is 15 cents. So one scrunchie is equivalent to 15 cents, which means how many times can you take .15 from 7.25 is how many scrunchies she can buy. So how many times does .15 go into 7.25? The answer is 48.3(repeating). So you have to round it down because if you round it up she needs more money.

I hope that helped :)

Subtract . What is the difference in lowest terms?
One-half
Four-eighths
Three-fourths
Six-eighths

Answers

5/8 - 1/8

4/8

1/2

Hope this helps! :)

1/2

5/8-1/8=4/8, we know this because when subtracting fractions with the same denominator, you keep the denominators the same and subtract the numerators. 5-1=4. this gives you 4/8. now, we know 4 is half of 8, so this is equal to 1/2, but we also can divide both 4 and 8 by 4, giving us 1/2.

Min saved 334 pennies. Rami saved 6 times as many pennies as Min.

How many pennies did Rami save?

??pennies

Answers

Answer:

2004

Step-by-step explanation:

334*6=2,004

you have too take 334 and times that by 6 , that should give you 2,004 :)
i hoped i explained it okay, have a nice day !

what is the perimeter of a triangle with 3 sides that measure 8 ft, 20 ft, 12 ft

Answers

Answer:

40 ft

Step-by-step explanation:

Perimeter is the sum of all 3 sides of a triangle.

For this particular triangle, add 8+20+12:

Answer:

40ft

Step-by-step explanation:

to find perimeter, you have to add up all the sides.

8ft+20ft+12ft+40ft

Triangle PQR with vertices P(3, −6), Q(6, −9), and R(−15, 3) is dilated by a scale factor of 3 to obtain triangle P′Q′R′. Which statement best describes triangle P′Q′R′?

Answers

Answer:

It is similar to triangle PQR and has coordinates P′(9, −18), Q′(18, −27), and R′(−45, 9).

Step-by-step explanation:

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