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2 years ago

Yen paid $10.50 for 2.5 pounds of pretzels. What price did she pay for each pound of pretzels?

Mathematics

2 answers:

Furkat [3]2 years ago

8 0

Answer:

The first step is to multiply by a power of 10, so the divisor is a whole number.

Step-by-step explanation:

disa [49]2 years ago

7 0

Answer:

The first step is to Multiply The next step is to Divide.

Step-by-step explanation:

Ok so if you were wondering what to do on the box that says this

Move Decimal
Divide
Multiply
Subtract
Bring down

Like my self on this. The answer is simple. Just click them in order from first to last. Wow such detective work I did. I know, it's not much but I was kind of confused on this as well so you might be too. So to explain the actual answer here we go. Now in order to solve these types of problems you have to use a technique called PEMDAS which stands for.

Parenthisis
Exponent
Multiply
Divide
Add Subtract

I know I spelled the first one wrong but its 2 am and I'm doing school for you. Now we have to take into account, does this have any parentheses. This certain problem does not. Now we have to look to see if this problem has exponents, yes it does. As stated in the answer box on the lesson itself. So know we have to take that into concideration(spelled wrong but I dont care this is math class)Now we multiply by a power of 10, so the divisor is a whole number. The next step is to divide by figuring out how many times 25 goes into 105. I know that was copied from the question but oh well. So this was the explanation, I know I didn't solve the whole problem but I had no need to, it wasn't in the question.

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An expression is given: 2 open parentheses square root of k minus 1 close parenthesis plus square root of 8. If on adding negati

neonofarm [45]

Answer:

Possible value of k is √2

Step-by-step explanation:

The information given are;

The expression, 2·(√k - 1) + √8 to which may be added -6·√2 to obtain a rational number, we therefore have;

2·(√k - 1) + √8 - 6·√2 = R

Therefore, simplifying gives;

2·√k - 2 + 2·√2 - 6·√2 = 2·√k - 2 - 4·√2 = R

2·√k - 2 - 4·√2 + 2= R + 2 = R

2·√k - 2+ 2 - 4·√2 = R

2·√k + 0 - 4·√2 = 2·√k - 4·√2 = 2·(√k - 2·√2) = R

(√k - 2·√2) = R/2 = R

Therefore, √2 is a factor of √k such that √k - 2·√2 = R

Which gives k = x·√2, where x = a rational number

When x = 1, k = √2.

Therefore, a possible value of k is √2

3 0

1 year ago

Select the functions that have identical graphs.

shtirl [24]

Answer:

c. 1 and 3

Step-by-step explanation:

To quickly solve this problem, we can use a graphing tool or a calculator to plot each equation.

Please see the attached image below, to find more information about the graph s

The equations are:

1) y = sin (3x + π/6)

2) y = cos (3x - π/6)

3) y = cos (3x - π/3)

Looking at the graphs, we can see that the identical ones

are equations one and three

Correct option:

c. 1 and 3

5 0

2 years ago

Read 2 more answers

You deposit $300 in a savings account that pays 6% interest compounded semiannually. How much will you have at the middle of the

Makovka662 [10]

Answer:

The total amount accrued, principal plus interest, from compound interest on an original principal of $ 300.00 at a rate of 6% per year compounded 2 times per year over 0.5 years is $ 309.00.

The total amount accrued, principal plus interest, from compound interest on an original principal of $ 300.00 at a rate of 6% per year compounded 2 times per year over 1 year is $ 318.27.

Step-by-step explanation:

a) How much will you have at the middle of the first year?

Using the formula

$A\:=\:P\left(1+\frac{r}{n}\right)^{nt}$

where

Principle = P

Annual rate = r

Compound = n

Time = (t in years)

A = Total amount

Given:

Principle P = $300

Annual rate r = 6% = 0.06 per year

Compound n = Semi-Annually = 2

Time (t in years) = 0.5 years

To determine:

Total amount = A = ?

Using the formula

$A\:=\:P\left(1+\frac{r}{n}\right)^{nt}$

substituting the values

$A=300\left(1+\frac{0.06}{2}\right)^{\left(2\right)\left(0.5\right)}$

$A=300\cdot \frac{2.06}{2}$

$A=\frac{618}{2}$

$A=309$ $

Therefore, the total amount accrued, principal plus interest, from compound interest on an original principal of $ 300.00 at a rate of 6% per year compounded 2 times per year over 0.5 years is $ 309.00.

Part b) How much at the end of one year?

Using the formula

$A\:=\:P\left(1+\frac{r}{n}\right)^{nt}$

where

Principle = P

Annual rate = r

Compound = n

Time = (t in years)

A = Total amount

Given:

Principle P = $300

Annual rate r = 6% = 0.06 per year

Compound n = Semi-Annually = 2

Time (t in years) = 1 years

To determine:

Total amount = A = ?

so using the formula

$A\:=\:P\left(1+\frac{r}{n}\right)^{nt}$

so substituting the values

$A\:=\:300\left(1+\frac{0.06}{2}\right)^{\left(2\right)\left(1\right)}$

$A=300\cdot \frac{2.06^2}{2^2}$

$A=318.27$ $

Therefore, the total amount accrued, principal plus interest, from compound interest on an original principal of $ 300.00 at a rate of 6% per year compounded 2 times per year over 1 year is $ 318.27.

3 0

1 year ago

A hospital bill is estimated to be $462.00. It ends up actually costing the patient $525.00. What is the percent error in the bi

Mamont248 [21]

In order to find the percent error, we need to first find the difference between what was expected and what is actually costed. We do this by subtracting:

$525-462=63$

So now we know that the expected amount was off by $63. To find the percent error, we need to take this $63, and divide it by the amount that was estimated. Let's do that now:

$\frac{63}{462}=0.1364$

However this is in decimal form. We need to multiply by 100 in order to get it in a percent:

$0.1364*100=13.64%$

Now we know that the percent error of the hospital bill estimate is 13.64%.

6 0

1 year ago

A scale diagram of a garden shows the length as 14.5 cm. If the scale is 1:150, what is the actual length? The garden is m in le

zvonat [6]

Answer:

21, 75 m

Step-by-step explanation:

The actual length ?

14, 5 cm × 150 = 2 175 cm = 21, 75 m

3 0

2 years ago