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VLD [36.1K]
3 years ago
7

15 more than 3 times a number is at most 7

Mathematics
1 answer:
hammer [34]3 years ago
8 0

Answer:

Let x = the number

"Fifteen more than" means addition

"Three times a number" is multiplication

"three less than" is subtraction, as is the term difference

Putting it all together, we have

7 - (15 + 3x) = (9 - 5x) - 3

-8 + 3x = 6 - 5x

-8 = 6 - 8x

-14 = -8x

14/8 = 7/4 = x

Step-by-step explanation:

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One circular table has a diameter of 8 ft, and another circular table has a diameter of 12 ft. How much greater is the area of t
mezya [45]

Answer:

20π sq ft ≈ 62.83 sq ft

Step-by-step explanation:

Area of table with diameter 8 ft = π*8^2/4 = 16π

Area of table with diameter 12 ft = π*12^2/4 = 36π

Difference between the area of the tables ;

= 36π - 16π

= 20π sq ft ≈ 62.83 sq ft                              ( π = 3.14)

8 0
3 years ago
Read 2 more answers
Simultaneous Equations <br> 2x+4y=22 <br> 2x+2y=15
Aleks04 [339]

Answer:

x = 4

y = \frac{7}{2}

Step-by-step explanation:

Ummmm

I'm not sure if this is corrrect but this is what I got

So first you solve 2x+4y=22 to find x

and you get x = -2y+11

Then you have to subtitute -2y+11 for x in 2x+2y=15

which you then get y= \frac{7}{2}

After you have to subttitute y= \frac{7}{2}  for y in x = -2y+11

which you get as x=4

Finally you get the answer as:

x = 4

y = \frac{7}{2}

5 0
3 years ago
What is the least common multiple<br> 8 and 12?
Anna35 [415]

Answer:

24

Step-by-step explanation:

8 x 3 = 24

12 x 2 = 24

so 24 is your least common multiple

5 0
2 years ago
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At a dinner, the meal cost $22 and a sales tax of $1.87 was added to the bill. What is the tax rate for meals in this city
Marina86 [1]
Answer is 8.5% ......
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3 years ago
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Need help fast!!!!!!!!
Kamila [148]
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