All categories

4 years ago

What is the answer to this problem 2/3+ 3/4 5/6

Mathematics

2 answers:

Nadya [2.5K]4 years ago

7 0

Answer:

1 5/12

Step-by-step explanation:

svetlana [45]4 years ago

6 0

Answer:

$\frac{2}{3} + \frac{3}{4} \\ \frac{8}{12} + \frac{9}{12} \\ = \frac{17}{12} = 1\frac{5}{12}$

You might be interested in

Please Help............

crimeas [40]

Answer: number 1

Step-by-step explanation:

3 0

3 years ago

I WILL GIVE BRAINLIEST<br> Solve for x<br> Answer must be simplified <br> -12 ≤ 44 + x

Solnce55 [7]

Answer:

-56 ≤ x

Step-by-step explanation:

-12 ≤ 44 + x

Subtract 44 from each side

-12 -44 ≤ 44 -44+ x

-56 ≤ x

6 0

3 years ago

Read 2 more answers

Compute a 99% confidence interval for the mean weight of toxic substance per gram of mold culture. State the assumption you make

kow [346]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The 99% confidence interval is $2.4309 < \mu < 4.9328$

Step-by-step explanation:

From the question we are told that

The data is 3, 2,5, 3, 2, 6, 5,4.5, 3, 3, and 4

The sample size is n = 11

Generally the sample mean is mathematically represented as

$\= x = \frac{\sum x_i}{n}$

=> $\= x = \frac{3+ 2+5+ \cdots +4 }{11}$

=> $\= x = 3.6818$

Generally the sample standard deviation is mathematically represented as

$\sigma = \sqrt{\frac{\sum [ x_i - \= x ] }{n} }$

=> $\sigma = \sqrt{\frac{[ 3 - 3.6818 ]^2 +[ 2 - 3.6818 ]^2 + \cdots + [ 4 - 3.6818 ]^2 }{11} }$

=> $\sigma = 1.3091$

Given that the confidence interval is 99% then the level of significance is mathematically represented as

$\alpha= (100 - 99) \%$

=> $\alpha= 0.01$

Given that the sample size is small we will making use of t distribution table

Generally from the t distribution table the critical value of at a degree of freedom of is

$t_{\frac{\alpha }{2} , 10 } =3.16927267$

Generally the margin of error is mathematically represented as

$E = 3.16927267 * \frac{1.3091 }{\sqrt{11} }$

$E = 1.251$

Generally 99% confidence interval is mathematically represented as

$3.6818 -1.251 < p < 3.6818 + 1.251$

=> $2.4309 < \mu < 4.9328$

8 0

3 years ago

The Cunningham family went to a dinner at Pasta Palace. Mr Cunningham ordered a meal for &7.50; Mrs. C ordered a meal for $6

SIZIF [17.4K]

The total bill for the Cunningham family was $29.26.

Step-by-step explanation:

Step 1; First we total up the cost of the food alone. Mr. Cunningham spent $7.50, Mrs. Cunningham spent $6.25, the 2 children spent $4.99 each which equals $9.98 for both. So the total of the food alone was $23.73.

Step 2; The sales tax rate was 7.25% of the $23.73. So we multiply 0.0725 (7.25%) with the $23.73 which equals $1.72. So the total bill was for $23.73 + $1.72 which equals $25.45.

Step 3; The Cunningham family left a 15% tip. This was 15% of the toal bill which was $25.45. So we multiply 0.15 (15%) with $25.45 which equals $3.81. So the total bill was food cost + service tax + tips which is $23.73 + $1.72 + $3.81 = $29.26

5 0

3 years ago

How do I solve 5x - 4 = -19

ira [324]

Undo what has been done to the variable. That means to do the opposite done to the variable.
5x-4=-19
+4=+4
5x=-15
5 is being multiplied to the variable so you divide it from both sides.
x=-3

7 0

3 years ago