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Lubov Fominskaja [6]
3 years ago
8

What is the ratio of x to y? 2 x ---- = -------- 3 3x+y

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0
So 2/3=x/(3x+y)
multiply both sides by 3x+y
(2(3x+y))/3=x
(6x+2y)/3=x
multiply by 3
6x+2y=3x
subtract 6x form both sdies
2y=-3x
-3x=2y
the ratio of x to y is
-3:2
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What is 9x + 12 < 84 and 2x - 6x > -8
Aleks04 [339]

(9x+12<84)

9x+12-12<84-12    

9x<72

=x<8



(2x-6x>-8)

-4x>-8

4x<8

=x<2


and the answer is x<2



5 0
3 years ago
Read 2 more answers
At your hardware store, you buy hammers for a $30.00 a dozen and sell them for $3.50 each. What is the percent markup for the ha
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I believe it’s 1.4%. 3.5/2.5=1.4
7 0
2 years ago
1) Find the volume of the rectangular pyramid below.<br><br> 21 cm<br> 1 cm<br> 29 cm
Ksenya-84 [330]

Answer:

3349.5 cm^{3}

Step-by-step explanation:

see image

6 0
2 years ago
Can someone PLEASE help me? Can you also please explain the steps ;; thank you :))
Yuri [45]
Yes, is this your question up above?
4 0
2 years ago
Solve this equation.
Anika [276]

Answer:

Answer:  b = 58/5  or 11 3/5 or 11.6 decimal

Step-by-step explanation:

Solve for b:

b - (3 + 2/5) = 8 + 1/5

Put 3 + 2/5 over the common denominator 5. 3 + 2/5 = (5×3)/5 + 2/5:

b - (5×3)/5 + 2/5 = 8 + 1/5

5×3 = 15:

b - (15/5 + 2/5) = 8 + 1/5

15/5 + 2/5 = (15 + 2)/5:

b - (15 + 2)/5 = 8 + 1/5

15 + 2 = 17:

b - 17/5 = 8 + 1/5

Put each term in b - 17/5 over the common denominator 5: b - 17/5 = (5 b)/5 - 17/5:

(5 b)/5 - 17/5 = 8 + 1/5

(5 b)/5 - 17/5 = (5 b - 17)/5:

(5 b - 17)/5 = 8 + 1/5

Put 8 + 1/5 over the common denominator 5. 8 + 1/5 = (5×8)/5 + 1/5:

(5 b - 17)/5 = (5×8)/5 + 1/5

5×8 = 40:

(5 b - 17)/5 = 40/5 + 1/5

40/5 + 1/5 = (40 + 1)/5:

(5 b - 17)/5 = (40 + 1)/5

40 + 1 = 41:

(5 b - 17)/5 = 41/5

Multiply both sides of (5 b - 17)/5 = 41/5 by 5:

(5 b - 17)/(5 1/5) = 1/5×1/(1/5) 41

1/5×1/(1/5) = 1:

5 b - 17 = 1/5×1/(1/5) 41

1/5×1/(1/5) = 1:

5 b - 17 = 41

Add 17 to both sides:

5 b + (17 - 17) = 17 + 41

17 - 17 = 0:

5 b = 41 + 17

41 + 17 = 58:

5 b = 58

Divide both sides of 5 b = 58 by 5:

(5 b)/5 = 58/5

5/5 = 1:

Answer:  b = 58/5  or 11 3/5 or 11.6 decimal


5 0
3 years ago
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