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nalin [4]
2 years ago
8

Three less than 4 times a number is equal to 12 more than seven times the number. What is the number?

Mathematics
1 answer:
kompoz [17]2 years ago
6 0

Answer:

-5

Step-by-step explanation:

4x-3 = 7x+12

  • Subtract 12 from each side

4x-15 = 7x

  • Subtract 4x from each side

-15 = 3x

  • Divide each side by 3

-5 = x

  • Rewrite using symmetric property
<h2><u>x = -5</u></h2>

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The Problem is 8-9 please reply back and thx for your time
schepotkina [342]

Answer:

-1

Step-by-step explanation:

8+9=17

9+8=17

17-8=9

17-9=8

But, 8-9 is -1

4 0
2 years ago
In one full day, 108 gallons of water seep into a pond. At this same rate, how many gallons will seep into the pond in 60 hours?
Alika [10]

Answer:

270

Step-by-step explanation:

108 divided by 24 is 4.5. 4.5 is how many gallons per hour. then, 4.5 times 60 equals 270.

6 0
2 years ago
a carpenter cuts of from a plank 5/12 of its length and then 6/7 of what remains.Of the remaining piece is 2/1/2 m long.find the
stealth61 [152]
Cut 5/12 of his lenght

remain 7/12 of his lenght
 
7/12*L - 6/7 *7/12*L=2 1/2 m
7/12*L(1-6/7)=7/12*L(7/7-6/7)=7/12*L*1/7=L/12 =2 1/2

⇒L=2 1/2 m *12=5/2*12=30 m

Original length was 30 m

5 0
3 years ago
a population grows at a rate of 6%. if the population is currently 254, write an equation that gives the population x years from
spayn [35]
You will need to use the compound growth formula - this is...
final number = starting number * (multiplier ^ number of years)

We can turn the 6% into a multiplier by dividing it by 100 and adding 1 on to it:
6/100 = 0.06
0.06+1 = 1.06

Then we can say that the starting number is 254 and the number of years is X, we can then place this all into the original formula:
Final population = 254 * (1.06 ^ X)

Hope this helps! :)
6 0
3 years ago
Jaime's family is eating leftover pizza for dinner. There are 1/3 of the pizza left over. If 6 people are eating, and they all r
GarryVolchara [31]
Answer: 1/18

Split the pie into thirds. Then split the third that is being observed into six pieces. Given that the other 2/3 can hold 12 slices, each person would have 1/18.
4 0
3 years ago
Read 2 more answers
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