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2 years ago

The tape diagram a way to model 5/8x11 what fraction

Mathematics

1 answer:

adelina 88 [10]2 years ago

4 0

Answer:

its 6 7/8

Step-by-step explanation:

You might be interested in

a practice field is 250 ft long the game is 40% longer than the practice field of how long is the game

Diano4ka-milaya [45]

Answer:

350

Step-by-step explanation:

40% of 250 is 100 (10% of 250 is 25 and 25 times 4 is 100)

250+100 is 350

8 0

3 years ago

A 40acre field produces 600 bushels of wheat. At the same rate, how many bushels will a 75acre field produce? A) 5 bushels B

wariber [46]

Since 40 acres of land produces 600 bushels
so the bushels produced by 1 acres of land is 600/40=15
So bushels produced by 75 actes of land = 75×15=1125 bushels

4 0

3 years ago

A researcher compares the effectiveness of two different instructional methods for teaching electronics. A sample of 138 student

yan [13]

Answer:

The 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the difference between population means is:

$CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}$

The information provided is as follows:

$n_{1}= 138\\n_{2}=156\\\bar x_{1}=61\\\bar x_{2}=64.6\\\sigma_{1}=18.53\\\sigma_{2}=13.43$

The critical value of <em>z</em> for 98% confidence level is,

$z_{\alpha/2}=z_{0.02/2}=2.326$

Compute the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 as follows:

$CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}$

$=(61-64.6)\pm 2.326\times\sqrt{\frac{(18.53)^{2}}{138}+\frac{(13.43)^{2}}{156}}\\\\=-3.6\pm 4.4404\\\\=(-8.0404, 0.8404)\\\\\approx (-8.04, 0.84)$

Thus, the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

5 0

3 years ago

Please solve -3x+12=48

choli [55]

Answer:

x = 12

Step-by-step explanation:

-3x+12=48

-12 -12

*subtract 12 from both sides

-3x = 36

-3x/3 = 36/3

*divide 3 from each sides

x = 12

4 0

3 years ago

Read 2 more answers

Consider the sequence.

kirza4 [7]

I wish I can’t help but lol k bye

5 0

3 years ago