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3 years ago

12

W^2-49=0 what are both solutions one is what's the other??

1 answer:

Alborosie3 years ago

3 0

W² - 49 = 0
w² - 7² = -
(w-7)(w+7)=0
w -7=0 , or w + 7 =0
w=-7, w=7

Answer: -7, 7.

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The gas tank is 20% full. At $3.00 per gallon of gas, find the cost to fill the tank. (1 gal = 231 in.3)

rewona [7]

The correct question in the attached figure

we know that

to fill the tank is required--------> 100%-20%--------> 80%
if 20% of the gas tank is-----------------> 288.75 gal
80% --------------------------------------> X gal
X=80*288.75/20--------> X=1155 gal

if 1 gal----------------> cost $3
1155 gal----------> $X
X=1155*3--------> X=$3465

the answer is
the cost to fill the tank is $3465

7 0

3 years ago

Cran-soy trail mix cost $2.99 for 5 ounces, raisin-nuts mix costs $3.41 for 7 ounces, lots of cashews mix costs $7.04 for 8 ounc

ss7ja [257]

First of all we will find per ounce price of each trail mix.

Let us find per ounce price of cran-soy trail mix.

$\text{Cran-soy trail mix cost per ounce}=\frac{2.99}{5}$

$\text{Cran-soy trail mix cost per ounce}=0.598$

Now we will find per ounce cost of raisin-nuts mix.

$\text{Raisin-nuts mix cost per ounce}=\frac{3.41}{7}$

$\text{Raisin-nuts mix cost per ounce}=0.487142857\approx 0.487$

Let us find per ounce price of lots of cashews mix.

$\text{Lots of cashews mix cost per ounce}=\frac{7.04}{8}$

$\text{Lots of cashews mix cost per ounce}=0.88$

Now we will find per ounce cost of nuts for you mix.

$\text{Nuts for you mix cost per ounce}=\frac{2.40}{6}$

$\text{Nuts for you mix cost per ounce}=0.4$

Now let us order our trail mix brands from least expensive to most expensive by their per ounce price.

Nuts for you (0.4), Raisin-nuts mix (0.487), Cran-soy trail mix (0.598), Lots of cashews mix (0.88).

3 0

3 years ago

The law firm of Dewey, Cheetham, and Howe handled 18 personal injury cases this past year. This was 9/7 of the cases handled by

mel-nik [20]

Answer:

14 cases

Step-by-step explanation:

Let x be the number of personal injury cases this year by Gypsum Goode

x* 9/7 = 18

Multiply each side by 7/9

x * 9/7 *7/9 = 18 * 7/9

x = 14

3 0

3 years ago

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How many cubic centimeters (cm3) of olive oil have the same mass as 1.50L of gasoline?

Viefleur [7K]

Gasoline = 0.74 g/mL
Olive Oil = 0.92 g/mL

Volume of olive oil =
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=1206.5 Cc

Hope this helps

5 0

3 years ago

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I really dont get this question

Gre4nikov [31]

Answer:

10,000

Step-by-step explanation:

Example:

.01 × 10,000 = 100

4 0

3 years ago

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