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FromTheMoon [43]
3 years ago
12

Does anyone know how to do this?i need help with #11 & 12

Mathematics
1 answer:
Lynna [10]3 years ago
4 0
Sorry but I can’t see the picture =23
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Solve the inequality:-3x-4/7 >5
Aliun [14]

x < -  \frac{13}{7}

add \frac{4}{7} to both sides

- 3x > \frac{4}{7} + \frac{35}{7}

- 3x > \frac{39}{7} ( divide both sides by - 3 )

note that when we divide/ multiply by a negative quantity we must reverse the inequality symbol

x < - \frac{13}{7}



6 0
3 years ago
609.9 is 85% of what number
castortr0y [4]
Hi

609.9 ⇒ 85%
x ⇒ 100%

85x = 100·(609.9)
85x = 60,990
x = (60,990)/85
x = 717.5294117... ≈ 717.53

85% of 717.53 ⇒ 0.85 × 717.53 = 609.9005 ≈ 609.9

Answer: 717.53
7 0
3 years ago
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You work two jobs. You earn $9.80 per hour as a salesperson and $7.84 per hour stocking shelves. Your combined earnings this mon
mars1129 [50]
9.80y+7.84x
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5 0
3 years ago
Solve the system.<br> x + y - z = 17<br> y +z = 1<br> z = -3
Anna35 [415]

Answer:

(10, 4, -3)

Step-by-step explanation:

z = -3

y + z = 1

y - 3 = 1

y = 4

x + y - z = 17

x + 4 - -3 = 17

x + 4 + 3 = 17

x + 7 = 17

x = 10

(10, 4, -3)

3 0
2 years ago
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Help me on this algebraic problem and please show work. (10 points) Thanks! :)
jonny [76]
4 - 2(x + 3) = 5
4 - 2x - 6 = 5
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x = -7/2 or = -3 1/2
5 0
3 years ago
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