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Dafna11 [192]
3 years ago
7

Please help me i gotta turn this in in 10 minutes

Mathematics
2 answers:
Marina CMI [18]3 years ago
4 0
To find the ratio, we must find the total amount of days (31) and the number of days that are either a Saturday or a Sunday (10). Since in the sentence, the number of Saturdays and Sundays is mentioned first, the 10 would precede the 31 in the ratio.

Final Answer - 10:31
nataly862011 [7]3 years ago
4 0
1) First figure out the number of days in August. This is easy because it's given to you - it's the number of days on the calendar, 31.

2) Next, count up the number of Saturdays and Sundays. There are 5 Saturdays + 5 Sundays = 10 total.

3) Finally put it as a ratio. Since you're looking for the ratio of "something" to "something," you want to put it as the first thing over the second thing (if in fraction form) or first thing:second thing. 

So Saturdays and Sundays to total number of days:
\frac{10}{31} or 10:31

------

Answer: \frac{10}{31} or 10:31
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Help me plz now plz help me asap​
loris [4]

\\ \sf\longmapsto 0.49=\dfrac{49}{100}

\\ \sf\longmapsto 0.093=\dfrac{93}{1000}

\\ \sf\longmapsto 0.021=\dfrac{21}{1000}

\\ \sf\longmapsto 0.103=\dfrac{103}{1000}

6 0
3 years ago
please help! find the scale factor and ratio of perimeters for a pair of similar octagons with areas 64ftsq and 81ftsq. i need t
kati45 [8]

Answer:

the scale factor and the ratio of their perimeters is 8/9

Step-by-step explanation:

k^2=area 1/area 2

k^2=64/81

=square root if k^2=square root of 64/81

=<u>k</u><u>=</u><u>8</u><u>/</u><u>9</u>

4 0
2 years ago
Tell whether the ordered pair is a solution to the system.
DerKrebs [107]

Answer:

no

Step-by-step explanation:

no. substitute -1 for x and -2 for y.

the first one is -1 - 10

this equals -11 not 3

7 0
3 years ago
Read 2 more answers
Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 cases of correct resul
o-na [289]

Answer:

H0:p= 0.80                 H1: p< 0.80  one tailed test

Step-by-step explanation:

We state the null and alternative hypotheses as that the results are 80 % against the claim that the results are less than 80%.

H0:p= 0.80                 H1: p< 0.80  one tailed test

p2= 0.8 , p1= 74/97= 0.763

q1= 1-0.763= 0.237    q2= 0.2

The level of significance is 0.05 .

The Z∝= ±1.645 for ∝= 0.05

The test statistic used here is

Z= p1-p2/ √pq/n

Putting the values:

Z= 0.763 -0.8 / √ 0.8*0.2/97

z= -0.037/ 0.0406

z= -0.9113

The Z∝ = ±1.645 for ∝= 0.05 for one tailed test.

As the calculated value  does not fall in the critical region  we fail to reject the null hypothesis. There is not sufficient evidence to support  the claim that such polygraph results are correct less than 80% of the time.

Using the normal probability table.

P (Z <  -0.9113)= 1- P(z= 0.9311) = 1- 0.8238= 0.1762

If P- value is smaller than the significance level reject H0.

0.1762> 0.005  Fail to reject H0.

8 0
3 years ago
Please help asap 20 pts
iVinArrow [24]

in 3 seconds

16 (3^2)

= 16 (9)

= 144 ft

Answer

D. 144 ft

7 0
3 years ago
Read 2 more answers
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