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Vilka [71]
2 years ago
9

Please help! Please explain how to do this, I am so lost.

Mathematics
1 answer:
alexdok [17]2 years ago
8 0
Ok, so we know that RST is equal to 6x+12
And RST is also equal to 78 + 3x-12
so we set them equal to each other

6x + 12 = 3x - 12 + 78
And simplify
3x = 54
x = 18

Finally, we solve for the angle with 18 for x

6(18) + 12
108 + 12
120

Hope this helps
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There are 278 houses in Hannah's neighborhood. She collected a total of $780 from her neighbors to donate for a local charity. H
ser-zykov [4K]
First, we need to find out how many houses that Hannah received money from. We can do this by dividing the total amount of money she received by the amount she received per house.

780 / 5 = 156

Hannah received money from 156 houses.
To find the amount of houses she did NOT collect money from, we just need to subtract the amount of houses that she DID receive money from away from the total amount of houses in her neighborhood.

278 - 156 = 122

Hannah did not collect money from 122 houses.
Hope this helped! =)
6 0
3 years ago
Read 2 more answers
−5 = s−9. what is s?
Elena L [17]

Answer:

S= 4

Step-by-step explanation:

add 9 to -5

= 4

s=4

8 0
1 year ago
Suppose your restaurant bill comes to $28.35 .Find your total cost if the tax is 6.25% and you leave a 20% tip on the amount bef
Anon25 [30]
Your total after tax is $30.12
A 20% tip is approximately $5.50 ($5.67)
3 0
3 years ago
If 15 workers did a job is 8 hours, how long would it take 5 workers to do half of this job?
babymother [125]
Since 15 workers did 8 hours of work, the total amount of work needed is 120 hours. Half of this job would be 60 hours. Then divide this amount by the 5 workers doing the job. This would make the job 12 hours
8 0
3 years ago
Read 2 more answers
Solve and show your work please!x+7=2(3x-4)
Brrunno [24]

x + 7 = 2(3x - 4)         Remove the brackets

x + 7 = 2*3x - 4*2

x + 7 = 6x -  8            Subtract 7 from both sides.

x + 7 - 7 = 6x - 8 - 7  

x = 6x - 15                 Subtract 6x from both sides

x - 6x = - 15

-5x = - 15                   Divide by -5

-5x/-5 = -15/-5

x = 3

6 0
3 years ago
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