Solve for x algebraically: 7-3(4x-8)<6x+12-9x

Answers

Answer 1

Answer: 7-3(4x-8)<6x+12-9x
7-12x+24<6x+12-9x
-12x-6x+9x<12-7-24
-9x<-19
-x<-19/9
x>19/9

Answer: x>19/9 or (19/9 , +∞)

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Please i need help with this 3 questions (#5,6,7)

Thank you

Answers

5. 15' x 15' x 9' = 2025 Cubic Feet. so its 15

6. 1.5 * 2.5 = 3.75; 3.75 * 3 = 11.25 so it 3.75*3

7.Really the only thing that can help you is plunging in the formula

What are the square roots of 81? I

Answers

Answer:

Step-by-step explanation:

Square root is to multiply same number to get high number.

Example: square root of 81.

9 x 9 = 81

Compare the numbers √11 and 3.7. Use the symbols <,>,or=.

Answers

Answer: Hi! here we want to compare the numbers $√(11)$ and $3.7$

and we need to use <,> or =

So the first thing i would look is the square root.

we know that $3^(2) = 9, 4^(2) = 16$

so 3< $√(11)$ <4

now we can see $3.7^(2) = (3 + 0.7)*(3 + 0.7) = (3*3 + 2*0.7*3 + 0.7*0.7) =(9 + 6*0.7 + 0.7*0.7)$

is easy to see that $0.7*6 \geq 0.5*6=3$

then $3.7^(2) = (9 + 0.7*6 + 0.7*0.7) > (9 + 3 + 0.7*0.7) > 9 +3 = 12$

so 3.7^2 > 12, and 12>11

then: $3.7 > √(11)$

You also can use a calculator, but i think this is not the idea of the problem.

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Which measure os greater 2 miles or 3 kilometers

Answers

Well, I do know that 2 miles covers a greater distance than 2 kilometers.

The millers drove 150 miles in 3 hours howblong will it take to drive 400 miles

Answers

150/3 = 50 miles/hr
So 400/50 = 8 hr
The answer is 8 hours.

How do you know that 4x2x2 is the same as 4x4

Answers

If you would like to know if 4x2x2 is the same as 4x4, you can find out using the following step:

2x2 equals to 4, so instead of 2x2 you can write 4.

The result is: 4x2x2 = 4x(2x2) = 4x4, which is the same as 4x4 in the second part of the question.

Because 2×2=4
so 4×4=16
and 4×2×2=16

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