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2 years ago

The difference of nineteen times a number and four

1 answer:

6 0

Answer:eight more than three times a number is negative nineteen:. 3x+8 = -19 3x = -27 x = -9. the difference four times a number and nine is three. 4x-9 = 3 4x = 12 x = 3. ten less than the product of two and a number is negative twelve. 2x-10 = -12 2x = -2 x = -1. Done.

Step-by-step explanation:

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Harlene tosses two number cubes. If a sum of 8 or 12 comes up, she gets 9 points. If not, she loses 2 points. What is the expect

Amanda [17]

P(8 or 12) = 1/6
P(not 8 or 12 = 5/6
Let the expected points fro one roll be X.
$E(X)=9\times\frac{1}{6}-2\times\frac{5}{6}=-\frac{1}{6}\ points$
The answer is -(1/6) points.

5 0

2 years ago

Read 2 more answers

What is 0.68 expressed as a fraction in simplest form? Both the 6 and the 8 repeat.

andreev551 [17]

Answer:

68/99

Step-by-step explanation:

.68686868686 repeating

Let x= .68686868668repeating

Multiply by 100

100x = 68.686868686repeating

Subtract x = .68686868repeating from this equation

100x = 68.686868686repeating

-x = .68686868repeating

------------------------------------------

99x = 68

Divide each side by 99

99x / 99 = 68/99

x = 68/99

3 0

2 years ago

Mulch to cover a rectangle garden cost $48. Mulch is needed to cover a larger,similar garden. the ratio of dimensions 2:3. how m

Annette [7]

It would cost $72 dollars to cover the larger garden

7 0

3 years ago

ILL GIVE U STUFFFFF PLZZZZZZZZZZZ ANSWER ITTTTTTTTT

belka [17]

Answer:

Slope: $-\frac{3}{4}$

Y-intercept: 399

Slope-intercept form: $y=-\frac{3}{4}x+399$

Step-by-step explanation:

1. The equation in Standard form is given in the problem:

$3y+4y=1596$

2. Then, to write the equation of the line in slope-intercept form $y=mx+b$ , where m is the slope and b is the y-intercept, you must solve for y as you can see below:

$4y=-3x+1596\\y=\frac{-3x+1596}{4}\\y=-\frac{3}{4}x+399$

3. Therefore, the slope and the y-intercept are:

$m=-\frac{3}{4}\\b=399$

5 0

3 years ago

Help!!!!! This is only a review!!!!!! Question is on image below.

solmaris [256]

No, the ratios aren’t equivalent

6 0

3 years ago