All categories

2 years ago

HELP! Amber was asked to solve the following inequality and show all of her work. She made an error when solving.

1 answer:

3 0

Amber did wrong at the second and third step : She completely simplify both sides but she has to minus 3.5 twice on the left side in order to do so. But instead, she just make them gone.

Work :
$2x-3.5\geq 10.5 - > 2x\geq 14 - > x\geq 7$

You might be interested in

Can someone please help me solve 91

Mashcka [7]

$3x^3+7x^2-20x=0\\
x(3x^2+7x-20)=0\\
x(3x^2-5x+12x-20)=0\\
x(x(3x-5)+4(3x-5))=0\\
x(x+4)(3x-5)=0\\
x=0 \vee x=-4 \vee x=\dfrac{5}{3}$

5 0

2 years ago

Read 2 more answers

Ryan has x stamps in his collection if he was 6 times as many stamps as penny, how many stamps does penny have in her collection

Free_Kalibri [48]

The number of stamps with penny in terms of x is $\frac{x}{6}$

<em><u>Solution:</u></em>

Given that,

Ryan has x stamps in his collection

Number of stamps of Ryan = x stamps

Let the stamps with penny be "a"

Ryan has 6 times as many stamps as penny

Therefore,

Number of stamps in Ryan = 6 times as many stamps as penny

$\text{Number of stamps in Ryan } = 6 \times a\\\\x = 6a\\\\a = \frac{x}{6}$

Thus number of stamps with penny in terms of x is $\frac{x}{6}$

7 0

3 years ago

The graph shows an image of dilation about the origin with a scale factor of 1/2

Gala2k [10]

I had this before and I think is was A.

6 0

2 years ago

Read 2 more answers

If you do these 2 problems you get 100 points

frosja888 [35]

Answer:

BELOW

Step-by-step explanation:

DO I HEAR 100 POINTS? Yes.

For the first image, that answer is A.

For the second image, I'm a bit confused on which problems you want me to do, so I'll do number 10, 11, and 14.

10) Yeah, you're correct, it is J.

11) (1,-6), (-2,-5), (8,2) (4,0) and I can't see the last point so..

14) Can't see the question :(

4 0

1 year ago

Read 2 more answers

Let a=3/5 and let b=2/3. Compute a^2b^-3.

Amanda [17]

Answer: 81/100

Step-by-step explanation:

I don't guarantee you I am right but..

first, solve for the exponents after substituting the numbers in

3/5 x 3/5 is 9/25

since b's exponent is negative, you change the fraction into its reciprocal and then do it with the exponent but positive

2/3^-3 to 3/2^3 and 3/2 x 3/2 is 9/4

then you mutiply both numbers to get 9/4 x 9/25 is 81/100

7 0

1 year ago