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Mekhanik [1.2K]
3 years ago
7

At a party there were four large submarine sandwiches all the same size . During the party 2/3 of the chicken sandwich three 4 o

f the tuna sandwich 7/12 of the roast beef sandwich and 5/6 of the veggie sandwich were eating which sandwich had the least amount left
Mathematics
2 answers:
Furkat [3]3 years ago
7 0

Solution :

Given that , at a party there were four large submarine sandwiches all the same size .

During the party 2/3 of the chicken sandwich, 3/4 of the tuna sandwich, 7/12 of the roast beef sandwich and 5/6 of the veggie sandwich were eaten

Remained chicken sandwich =1 - \frac{2}{3} = \frac{1}{3} =0.34

Remained tuna sandwich  =1 - \frac{3}{4} = \frac{1}{4} =0.25

Remained roast beef sandwich  =1 - \frac{7}{12} = \frac{5}{12} =0.42

Remained veggie sandwich  =1 - \frac{5}{6} = \frac{1}{6} = 0.17

Hence, Veggie Sandwich had the least amount left .

aev [14]3 years ago
6 0
The roast beef had the least amount eaten from it
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Solve for x!! help this is due soon
Umnica [9.8K]

Answer

91

Step-by-step explanation:

62+27+x=180

6 0
3 years ago
A ladder is leaning against the side of a building. The
cupoosta [38]

Answer:

16 ft

Step-by-step explanation:

Based on the situation above, it forms into a right triangle. Therefore we can apply the Pythagorean Theorem. We will use the formula below:

c = √( a² + b²)

In the problem above, the ladder acts as the hypotenuse denoted by c. It has a length of 20 ft. While the base denoted by b is 12 ft. Therefore, we need to solve for a. We will derive the formula above.

c² = a² + b²

a² = c² - b²

a = √( c² - b² )

a = √( 20² - 12² )

a = 16

The unit is in ft.

Correct me if I'm wrong. I hope it helps.

8 0
3 years ago
Iron deficiency anemia is an important nutritional health problem in the U.S. A dietary assessment was performed on 51 boys 9-11
Bond [772]

Answer:

a) Null hypothesis:\mu = 14.44    

Alternative hypothesis:\mu \neq 14.44    

b) t=\frac{12.50-14.44}{\frac{4.75}{\sqrt{51}}}=-2.917    

The degrees of freedom are given by:

df =n-1= 51-1=50

Now we can calculate the p value taking in count the alternative hypothesis

p_v =2*P(t_{50}

Since the p value is lower than the significance \alpha=0.05 we have enough evidence to reject the null hypothesis and the true mean is significantly different from 14.44

c) 12.50 -2.01 \frac{4.75}{\sqrt{51}}= 11.163

12.50 +2.01 \frac{4.75}{\sqrt{51}}= 13.837

Step-by-step explanation:

Information given

\bar X=12.50 represent the mean for the daily iron intake

s=4.75 represent the sample deviation

n=51 sample size    

\mu_o =14.44 represent the reference value  

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic

p_v represent the p value for the test

Part a

We want to test if the mean iron intake among the low-income group is different from that of the general population, the system of hypothesis would be:    

Null hypothesis:\mu = 14.44    

Alternative hypothesis:\mu \neq 14.44  

Part b  

Since we don't know the population deviation the statistic would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)    

Replacing the info we got

t=\frac{12.50-14.44}{\frac{4.75}{\sqrt{51}}}=-2.917    

The degrees of freedom are given by:

df =n-1= 51-1=50

Now we can calculate the p value taking in count the alternative hypothesis

p_v =2*P(t_{50}

Since the p value is lower than the significance \alpha=0.05 we have enough evidence to reject the null hypothesis and the true mean is significantly different from 14.44

Part c

The confidence interval would be given by:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}

For the 95% confidence interval we can find the critical value in a t distribution with 50 degrees of freedom and we got:

t_{\alpha/2}= 2.01

And replacing we got:

12.50 -2.01 \frac{4.75}{\sqrt{51}}= 11.163

12.50 +2.01 \frac{4.75}{\sqrt{51}}= 13.837

7 0
3 years ago
In a game of chance, players spin the pointer of a spinner with eight equal-sized sections. A spinner that is divided into 8 equ
Aleksandr [31]

Answer:

6/8

Step-by-step explanation:

probability= required outcome / all possible outcomes

probability = 6/8

8 0
3 years ago
Read 2 more answers
Help me please i cant seem to get it
givi [52]

The diagnonals of a parallelogram bisect each other ,

so

=》 BD = 3x × 2

=》BD = 6x

and there's given that

=》

BD = \dfrac{3}{5} AC

=》

6x =  \dfrac{3}{5}  \times 40

=》

x =  \dfrac{24}{6}

=》

x = 4

so, if x = 4 , then the given quadrilateral is a parallelogram.

7 0
3 years ago
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