3 years ago

Which of the following statements is false?

Mathematics

2 answers:

Sonja [21]3 years ago

4 0

The second one is incorrect

lara [203]3 years ago

4 0

The last one is incorrect because the absolute value sign basically cancels the negative and makes it positive 5 !

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Elza [17]

Answer:

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Step-by-step explanation:

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2 years ago

There are two numbers, one is 7 more than twice the other. The sum of the numbers is 43. Make the equation to find the smaller n

Mrrafil [7]

Answer:

Smaller number: 12

Greater number: 31

Step-by-step explanation:

Hi there!

Let x equal to the smaller number.

Let y be equal to the greater number.

1) Translate the information into equations

"One is 7 more than twice the other"

⇒ $y=2x+7$

"The sum of the numbers is 43"

⇒ $x+y=43$

2) Use substitution to solve for the smaller number

$x+y=43$

Plug the equation $y=2x+7$ into the above equation

$x+(2x+7)=43\\x+2x+7=43\\3x+7=43$

Subtract both sides by 7

$3x+7-7=43-7\\3x=36$

Divide both sides by 3 to isolate x

$\frac{3x}{3} = \frac{36}{3} \\x=12$

Therefore, the smaller number equates to 12.

3) Use substitution to solve for the greater number

$x+y=43$

Plug in x as 12

$12+y=43$

Subtract both sides by 12 to isolate y

$12+y-12=43-12\\y=31$

Therefore, the greater number equates to 31.

I hope this helps!

3 0

3 years ago

Torri had 20$ to buy a birthday presents for her dad. She decided to buy a DVD for 10$. The sales tax is 7%. Does she have enoug

Trava [24]

Answer:

Yes

Step-by-step explanation:

She has enough money because 7% tax on a 10.00$ item would be 7% of 10.00$ which is 70 cents.

6 0

2 years ago

Can u solve this puzzle?

finlep [7]

Answer:

i dont think so sorry

4 0

2 years ago

Find the slope. Simplify completely.

erma4kov [3.2K]

4/1 or 4. I hope this helps!

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2 years ago