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4 years ago

Lucas is counting by 8. Which of these numbers will he NOT say.32,56,72,84

Mathematics

2 answers:

hammer [34]4 years ago

4 0

Hello from MrBillDoesMath!

Answer:

Discussion:

32 = 8 * 4

56 = 8 * 7

72 = 8 * 9

84 = 3 * 4 * 7 not divisible by 8

Thank you,

MrB

LenKa [72]4 years ago

4 0

Answer:

Step-by-step explanation:

Multiples of 8 are 1, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, and 88. 84 will not be said.

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Solving a word problem using a two-step med

stepladder [879]

Inequality is 6t ≤ 44 and Jim can rent a boat for 7.33 hrs or less

<u> Solution:</u>

Given that

Maximum amount Jim can spend to rent a boat = $34

Rental cost of boat for 1 hour = $6

Also Jim has a discount coupon for $8 off.

Need to determine possible number of hours Jim could rent a boat.

Let’s assume possible number of hours Jim could rent a boat be represented by variable "t"

Cost of renting boat for 1 hour = 6

So Cost of renting a boat for t hours = t x renting boat for 1 hour = t x 6 = 6t

Also Maximum amount Jim can spend to rent a boat = $34

As Jim has a discount coupon for $8 off, so Total amount Jim can spend to rent a boat = $ 34 + $ 8 = $ 44

So cost of renting a boat for t hours must be less that of equal to Total amount Jim can spend to rent a boat

=> 6t ≤ 44

On solving above equality for "t" we get ,

$\begin{array}{l}{t \leq \frac{44}{6}} \\\\ {=>\mathrm{t} \leq 7.3333 \mathrm{hrs}}\end{array}$

Hence inequality is 6t ≤ 44 and Jim can rent a boat for 7.33 hrs or less.

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3 years ago

Designer dolls, inc. found that the number n of dolls sold varies directly with their advertising budget a and inversely with th

MA_775_DIABLO [31]

10400, x = 52,000 * 5,200 / 26,000.

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3 years ago

Read 2 more answers

-7r+13=-71 with shown work

Lemur [1.5K]

-7r+13=-71

move 13 to the other side

sign changes from +13 to -13

-7r+13-13= -71-13

-7r= -84

divide both sides by -7 to get r by itself

-7r/-7= -84/-7

Answer: r= 12

7 0

3 years ago

The following data was collected from a local high school and represents the number of points the women's basketball team scored

andrew-mc [135]

Answer:

The degrees of freedom are:

$df=n-1=10-1=9$

The confidence level is 0.95 or 95%, the significance would be $\alpha=0.05$ and $\alpha/2 =0.025$ , the critical value for this case would be $t_{\alpha/2}=2.262$

And replacing we got:

$54.7-2.262\frac{9.956}{\sqrt{10}}=47.58$

$54.7+2.262\frac{9.956}{\sqrt{10}}=61.82$

Step-by-step explanation:

Information given

In order to calculate the mean and the sample deviation we can use the following formulas:

$\bar X= \sum_{i=1}^n \frac{x_i}{n}$ (2)

$s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}}$ (3)

$\bar X= 54.7$ represent the sample mean

$\mu$ population mean

s=9.956 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are:

$df=n-1=10-1=9$

The confidence level is 0.95 or 95%, the significance would be $\alpha=0.05$ and $\alpha/2 =0.025$ , the critical value for this case would be $t_{\alpha/2}=2.262$

And replacing we got:

$54.7-2.262\frac{9.956}{\sqrt{10}}=47.58$

$54.7+2.262\frac{9.956}{\sqrt{10}}=61.82$

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3 years ago

How can i write "fourteen less than five times a number is three times the number" in an equation

Orlov [11]

5x-14=3x would be the equation!

3 0

3 years ago