Mathematics, 30.10.2019 02:31 bellam302

Aregular tube of toothpaste costs $2.50 for 3.2 ounces. a travel size tube costs $1.00 for 1.2 ounces. compare the prices and weights using percent to decide which is the better buy. the travel size costs nothing % as much as the regular size. the travel size has nothing % as much toothpaste as the regular size. the ▼ regular regular travel travel size is the better buy.

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The travel size costs 6.24 % as much as the regular size. Thus the regular size would be more economical and thus a better buy.

Step-by-step explanation:

1. To calculate the price per ounce, for the regular tube toothpaste we can express this as;

Total price of regular tube toothpaste=Price per ounce×Number of ounces

where;

Total price of regular tube toothpaste=$2.50

Price per ounce=x

Number of ounces=3.2 ounces

replacing;

2.50=x×3.2

x=2.5/3.2

x=0.78125

Price per ounce=0.78125 dollars/ounce

2. To calculate the price per ounce, for the travel size tube toothpaste we can express this as;

Total price of regular tube toothpaste=Price per ounce×Number of ounces

where;

Total price of regular tube toothpaste=$1.00

Price per ounce=x

Number of ounces=1.2 ounces

replacing;

1.00=x×1.2

x=1/1.2

x=0.83

Price per ounce=0.83 dollars/ounce

3. How much more the travel size costs than regular;

((Travel size costs-Regular size cost)/(regular size cost))×100

((0.83-0.78125)/0.78125)×100

(0.04875/0.78125)×100=6.24 %

The travel size costs 6.24 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

Answer from: betsylancer8071

A regular tube of toothpaste costs $2.50 for 3.2 ounces. A travel size tube costs $1.00 for 1.2 ounces. Compare the prices and weights using percent to decide which is the better buy.

The travel size costs

40% as much as the regular size. The travel size has

37.5% as much toothpaste as the regular size. The

regular

size is the better buy.

Answer from: Quest

$a^b=\underbrace{a\cdot a\cdot \ldots \cdot a}_{b}$

a - base

b - exponent

$8^3=\underbrace{8\cdot 8 \cdot 8}_{3}$

so,

the base is 8the exponent is 3the exponent tells you to multiply 8 together three timesthe expanded form is 8*8*8

Answer from: Quest

see attached

step-by-step explanation:

given the function as;

$f(x)=2x^3-7x^2+2x+3$

write the equation replacing f(x) with y

$y=2x^3-7x^2+2x+3$

form and fill a table containing values of y with corresponding values of x

you can take a range for values of x as -3≤x≤3

solving for x=-3

$f(-3)=2*-3^3-7*-3^2+2*-3+3=2*-27-63+-6+3=-54-63-6+3y=-120$

for x=-2

$f(-2)=2*-2^3-7*-2^2+2*-2+3=2*-8-28+-4+3=-16-28-4+3=-45$

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values of x and obtain the following graph

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Aregular tube of toothpaste costs $2.50 for 3.2 ounces. a travel size tube costs $1.00 for 1.2 ounce...

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