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2 years ago

PLS HELP ASAP 30 POINTS

Mathematics

1 answer:

GaryK [48]2 years ago

7 0

I guess b or d

hope i’m right

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Solve the inequality 2(4x-3)>-3(3)+5x

Sholpan [36]

Answer:

$x > -1\\$

Step by step explanation:

$~~~~~2(4x-3) > -3(3)+5x\\\\\implies 8x-6 > -9+5x\\\\\implies 8x > -9+6+5x\\\\\implies 8x > -3+5x\\\\\implies 8x -5x > -3\\\\\implies 3x > -3\\\\\implies x > -\dfrac 33\\\\\implies x > -1$

5 0

1 year ago

Shane kayaks at a constant rate of 4 mph. How far will he travel in 2 hours?

musickatia [10]

Answer:8 miles

Step-by-step explanation:

If he’s traveling at 4 miles and hour and he traveling for two hours it would be 8 miles

8 0

2 years ago

Read 2 more answers

Alberto ran a race at a speed of 9 meters per second. Omar had a 6 meter head start and ran at a speed of 7 meters per second. B

zloy xaker [14]

Answer: Alberto run 27 meters.

Time taken By Alberto=3 seconds

Step-by-step explanation:

Let d be the distance Alberto ran to catch Omar.

Then, distance ran by Omar=x-6

Also, $\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

Since, both started running at the same time.

Time taken By Alberto= $\frac{x}{9}$

Time taken By Omar= $\frac{x-6}{7}$

Now, at the point they meet time taken by both is equal.

$\frac{x}{9}=\frac{x-6}{7}\\\Rightarrow\ 7x=9(x-6)\\\Rightarrow7x=9x-54\\\Rightarrow9x-7x=54\\\Rightarrow\ 2x=54\\\Rightarrow\ x=27$

Hence, Alberto run 27 meters.

Time taken By Alberto= $\frac{27}{9}$ =3 seconds

6 0

3 years ago

the difference between the squares of two numbers is 3. Twice the square of the first number increased by the square of the seco

Maurinko [17]

Answer:

The number are $\sqrt{6}$ and $\sqrt{6}$ .

Step-by-step explanation:

Given as :

The difference between the squares of two number = 3

And , Twice the square of the first number increased by the square of the second number is 9

Now, Let The first number = F

And The second number = S

So , According to question

F² - S² = 3 .......A

2 F² - S² = 9 ........B

Now, solving the equations

( 2 F² - S² ) - ( F² - S² ) = 9 - 3

Or, ( 2 F² - F² ) + ( S² - S² ) = 6

Or, F² + 0 = 6

∴ F = $\sqrt{6}$

Putting the value of F in eq A

So, ( $\sqrt{6}$ )² - S² = 3

Or, 6 - 3 = S²

Or, S² = 3

∴ S = $\sqrt{3}$

So, The number are $\sqrt{6}$ , $\sqrt{6}$

Hence The number are $\sqrt{6}$ and $\sqrt{6}$ . Answer

8 0

2 years ago

Tanya's boyfriend gave her a box of chocolates for Valentine's Day 3/4 of the chocolates were milk chocolate, 1/8 of them were w

Sholpan [36]

You do 3/4 times 16 = 48/4 and that simplified is 12. 16 times 1/8 is 16/8 or 2. There are 2 dark chocolates in the box.

6 0

2 years ago