![eden43](/avatars/8204.jpg)
eden43
18.03.2021 •
Mathematics
I need help with this question
8 = 3a - 4
Solved
Show answers
More tips
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking 10 Reasons Why You Should Avoid Giving Re-Gifts: An Informative Guide...
- S Sport How to wrap boxing hand wraps? Everything you need to know!...
- A Animals and plants 5 Tips for Taking Care of Yews to Keep Them Green and Beautiful...
- H Health and Medicine How to Calm Your Nerves? Expert Tips That Actually Work...
- O Other What is a Disk Emulsifier and How Does it Work?...
- S Sport How to Pump Your Chest Muscle? Secrets of Training...
- C Computers and Internet How to Get Rid of 3pic Infector: Everything You Need to Know...
- S Style and Beauty How to Grow Hair Faster: Real Methods and Advice...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
Answers on questions: Mathematics
- M Mathematics The radius of a circle is 42 inches. What is the circle s area? Use 3.14 for ....
- H History What was Robespierre’s role in the French Revolution? He defended the monarchy. He started the Reign of Terror. He led the attack on the Bastille. He wrote the French constitution....
- H History Anyone down to go out on a mud trip...
- G Geography What are the three entertaiment speech?...
- S Spanish Which is the correct substitute for the capitalized words? el duque ama a la duquesa. a. están b. ésta c. estás d. estamos pennfoster...
- B Biology List the key steps of recombination at the molecular level....
Ответ:
8=3a-4
12=3a
4=a
hope this helps
have a good day :)
Step-by-step explanation:
Ответ:
Answers:
Sarah has $12.50Sam has $27.50Casey has $55Explanation:
x = amount of money Sarah has
x+15 = amount of money Sam has, since he has $15 more than her
2(x+15) = amount of money Casey has, since he has twice as much as Sam.
Let's add up those three expressions and set that sum equal to 95
Solve for x.
Sarah + Sam + Casey = 95
x+(x+15) + 2(x+15) = 95
x + x + 15 + 2x + 30 = 95
4x+45 = 95
4x = 95-45
4x = 50
x = 50/4
x = 12.50
This says that Sarah has $12.50
That must mean Sam has x+15 = 12.50+15 = 27.50 dollars
And Casey must have 2*27.50 = 55 dollars.
As a check,
Sarah+Sam+Casey = 12.50+27.50+55 = 95
So the answer is confirmed.