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3 years ago

5 projects require 53 paving stones about how many stones are needed for all of the projects

Mathematics

2 answers:

Vlada [557]3 years ago

7 0

Answer:260

53×5=260

Step-by-step explanation:

olasank [31]3 years ago

4 0

265 paving stones will be needed if it is 53 for each project

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36 is 0.9% of what number

algol13

400
because you need to divide 36/0.09=400

8 0

2 years ago

For every 1 out of 6 miles that a ship travels north it travels 3 out of 5 miles west .how many miles does the ship travel north

Oksi-84 [34.3K]

Answer:

2/6 miles that is the answer for your question

Step-by-step explanation:

8 0

3 years ago

Mia has 12 marbles, alex has 9 marbles, and micheal has 51 marbles. use the gcf and the distributive property to find the total

aleksley [76]

Answer: 5508

Step-by-step explanation:

all the numbers together equal 72 marbles in total.

(6x2)x (3x3)x (3x17)=

12 9 51 first multiply the easy numbers 12x9 =108 then

108x51= 5508

3 0

3 years ago

Two competing headache remedies claim to give fast-acting relief. An experiment was performed to compare the mean lengths of tim

DaniilM [7]

Answer:

$t = 0.875$

Step-by-step explanation:

Given

<u>Brand A</u> <u>Brand B</u>

$n_ 1= 12$ $n_2 = 12$

$\bar x_1 = 21.8$ $\bar x_2 = 18.9$

$\sigma_1 = 8.7$ $\sigma_2 = 7.5$

Required

Determine the test statistic (t)

This is calculated as:

$t = \frac{\bar x_1 - \bar x_2}{s\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}$

Calculate s using:

$s = \sqrt{\frac{(n_1-1)*\sigma_1^2+(n_2-1)*\sigma_2^2}{n_1+n_2-2}}$

The equation becomes:

$s = \sqrt{\frac{(12-1)*8.7^2+(12-1)*7.5^2}{12+12-2}}$

$s = \sqrt{\frac{1451.34}{22}}$

$s = \sqrt{65.97}$

$s = 8.12$

So:

$t = \frac{\bar x_1 - \bar x_2}{s\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}$

$t = \frac{21.8 - 18.9}{8.12 * \sqrt{\frac{1}{12} + \frac{1}{12}}}$

$t = \frac{21.8 - 18.9}{8.12 * \sqrt{\frac{1}{6}}}$

$t = \frac{21.8 - 18.9}{8.12 * 0.408}}$

$t = \frac{2.9}{3.31296}}$

$t = 0.875$

3 0

3 years ago

14.

ddd [48]

Answer: Yes the win level is greater than 1/2

Step-by-step explanation: 32/52 is greater than 1/2

8 0

2 years ago

5 projects require 53 paving stones about how many stones are needed for all of the projects​

5 projects require 53 paving stones about how many stones are needed for all of the projects