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3 years ago

8

A pair of socks coast $5.00. A package of 3 pairs coast $12.00 How much would u save if u by 2 packages instead of 6 individual

pairs?

2 answers:

STatiana [176]3 years ago

6 0

You would save 6$
hope this helps you

amid [387]3 years ago

6 0

You would save $8.00 by buying the packages because 2 packages are $24.00 and 6 $5.00 pairs are $30.00.$30.00-$24.00=$8.00 .

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Stan and hilda can mow the lawn in 35 min if they work together. if hilda works twice as fast as stan, how long would it take st

mash [69]

<span>105 minutes "Stan and Hilda can mow the lawn in 35 min" 35 = 1/(S + H) "Hilda works twice as fast as Stan" H = 2S "how long would it take Stan to mow the lawn alone?" T = 1/S First, let's determine what S is, so 35 = 1/(S + H) Substitute 2S for H 35 = 1/(S + 2S) Solve for S 35 = 1/(3S) 35(3S) = 1) 105S = 1 S = 1/105 Now solve T = 1/S with S = 1/105 T = 1/S T = 1/(1/105) T = 1/1 / 1/105 T = 1/1 * 105/1 T = 105 So it will take Stan 105 minutes to mow the lawn alone.</span>

5 0

3 years ago

Jacob is showing his steps to solve the expression −27.8 ÷ 1 over 7.

salantis [7]

There is no error, Jacob did everything right :)

8 0

3 years ago

Read 2 more answers

As a follow-up to a report on gas consumption, a consumer group conducted a study of SUV owners to estimate the mean mileage f

kondor19780726 [428]

Answer:

The 95% confidence interval estimate for the mean highway mileage for SUVs is (18.29mpg, 20.91mpg).

Step-by-step explanation:

Our sample size is 96.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

$df = 96-1 = 95$

Then, we need to subtract one by the confidence level $\alpha$ and divide by 2. So:

$\frac{1-0.95}{2} = \frac{0.05}{2} = 0.025$

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 95 and 0.025 in the t-distribution table, we have $T = 1.9855$ .

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

$s = \frac{5.6}{\sqrt{96}} = 0.57$

Now, we multiply T and s

$M = T*s = 1.9855*0.57 = 1.31$

For the lower end of the interval, we subtract the mean by M. So $19.6 - 1.31 = 18.29$

For the upper end of the interval, we add the mean to M. So $19.6 + 1.31 = 20.91$

The 95% confidence interval estimate for the mean highway mileage for SUVs is (18.29mpg, 20.91mpg).

8 0

4 years ago

3. Two-thirds of a number plus 4 is 76. What is the number?<br>

max2010maxim [7]

Answer:

108

Step-by-step explanation:

2/3x+4=76

2/3x=72

x=72*3/2

x=108

4 0

3 years ago

Read 2 more answers

What are the solutions to x2−10x=39? Question 4 options: 3 and -13 1 and -39 -1 and 39 -3 and 13

aliina [53]

Answer:

$x=-3,13$

Step-by-step explanation:

Given: $x^2-10x=39$

To find: solutions of the given equation

Solution:

$x^2-10x=39\\x^2-10x-39=0$

Write $-10=-13+3$

Therefore,

$x^2-13x+3x-39=0\\x(x-13)+3(x-13)=0\\(x+3)(x-13)=0\\x=-3,13$

So, solutions of the given equation are $-3$ and $13$ .

8 0

3 years ago