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love history [14]
3 years ago
10

Help its due today ................................

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

Answer:

Add -4x to both sides--> 6x+9=4x-3 and 2x+9=-3

multiply both sides by -1/4 --> -4(5x+7)=-18 and 5x-7=4.5

multiply both sides by 1/4--> 12x+4=20x+24 and 3x+1=5x+6

multiply both sides by -4--> -5x/4=4 and 5x=-16

add -4 to both sides--> 8-10x=7+5x and 4-10x=3+5x

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Really need help Pls
Studentka2010 [4]

Answer:

20.57 cm

Step-by-step explanation:

Circumference of half circle = diameter + half of circumference

                                               = 8 +\dfrac{2\pi r}{2}\\\\\\= 8 + \pi r\\\\= 8 + 3.142 * 4\\\\= 8 + 12.568\\\\= 20.568\\\\= 20.57 \ cm

6 0
2 years ago
Simplify (write without the absolute value sign):<br> 120+x, if x &lt;- 120
Alexeev081 [22]

Answer: - x - 120

Explanation: You want to find the opposite of (120-x) not just x, so you just put the negative symbol next to both the variables.

8 0
4 years ago
Write an expression for 8 times x
Alex

8x

8(x)

Either one works ^^

8 0
3 years ago
Read 2 more answers
Please somebody help me with this
topjm [15]

Answer:

the answer is C

Step-by-step explanation:

2x - 3y > -12

3x + 2y < or = 18

4 0
3 years ago
Kendra lost one half of her allowance but her mother gave her four more dollars now she has $9 how much was her allowance
garri49 [273]
10 dollars because her mom gave her 4. Subtract her total of 9 dollars she has by 4 from her mom. That is 5, however you need to multiply by 2 because she lost one half of it.
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