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Dominik [7]
3 years ago
10

2x - 7 -+1=3x - 4 4 .

Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0

Answer:

x = 0.4

Step-by-step explanation:

Move the 1 on the left to the right

This would result in

(2x - 7)/4 = 1 + 3x - 4

Solving this would result in

(2x- 7)/4 = 3x - 3

Move the 4 to the right

Solving this would result in:

2x - 7 = 12x - 3

Now, it is just basically solving for x

2x - 12x = -3 +7

-10x = -4

x  = 0.4

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vodomira [7]
Well first set up the first ratio as 6/24. That is commercial mins over show time mins. Then to keep the units the same convert 2 hours into minutes which would be 120 minutes. Then set up your next ratio as x/120 since you’re trying to find the commercial minutes. Then cross multiply so that it’s 24x=720 and then x=30 and that’s the amount of commercial minutes for 2 hours.
3 0
3 years ago
You and a friend go to surf taco for lunch. you order 3 soft tacos and 2 burritos and your total bill is 25. Your friend bill is
Salsk061 [2.6K]

Answer:

Step-by-step explanation:

Let the cost of one soft taco = s

Let the cost of one burrito  = b

 

So  we have this system

 

3s  + 3b  = 11.25  

4s +  2b   = 10.00   (1)

 

Divide  the first equation through by 3   and we have that

 

s +  b  =  3.75         subtract  b from both sides

s   =  3.75 - b   (2)

 

Sub  (2) into (1)  and we have

 

4 (3.75 - b)  +  2b  =  10.00      simplify

15 - 4b  + 2b   = 10.00

-2b + 15  =10.00      subtract 15 from both sides

-2b  =  - 5.00         divide both sides by -2

b  = 2.50

 

And using (2)

s  =  3.75 - 2.50   =   1.50

 

 

So...  a soft taco  1.50 and a burrito is  2.50

6 0
3 years ago
38 x 97 help help help
Free_Kalibri [48]

Answer:

3686

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A pound of grapes costs $2.49. Lucas bought two pounds of grapes. He gave the clerk a $10.00 bill. How much change did Lucas get
GaryK [48]

Answer:

$5.02

Step-by-step explanation:

$2.49 × 2 = $4.98

$10 - $4.98 = $5.02

7 0
2 years ago
What is 15 divided by 2,345
olasank [31]
Is 15÷2345= 0.0063965......
3 0
3 years ago
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