All categories

3 years ago

Perform the indicated operation . 10 3/7+ 19 5/9

1 answer:

3 0

make improper fractions first. Then look for a common denominator (7*9) you will get something like this:

((73*9 + 9*19*7)/(63))

You might be interested in

Justin sells 78.5 ounces of lemonade for a total of $15.70.

Paha777 [63]

Answer:

Step-by-step explanation:

This is a pretty simple question to answer, the one step that needs to be done is divide 78.5 by 15.7. You should come up with 5.

6 0

3 years ago

Read 2 more answers

A manufacturer of televisions subjects the equipment to a comprehensive testing process for all essential functions before the t

Vikki [24]

Answer:

The value is $P(X \ge 9) = 0.9138$

Step-by-step explanation:

From the question we are told that

The probability of passing the test is $p = 0.95$

The sample size is n = 10

Generally the distribution of the comprehensive testing of equipment follows a binomial distribution

i.e

$X \~ \ \ \ B(n , p)$

and the probability distribution function for binomial distribution is

$P(X = x) = ^{n}C_x * p^x * (1- p)^{n-x}$

Here C stands for combination hence we are going to be making use of the combination function in our calculators

Generally the probability that at least 9 pass the test is mathematically represented as

$P(X \ge 9) = P(X = 9 ) + P(X = 10 )$

=> $P(X \ge 9) = [^{10}C_9 * (0.95)^9 * (1- 0.95)^{10-9}] + [^{10}C_{10} * (0.95)^{10} * (1- 0.95)^{10-10}]$

=> $P(X \ge 9) = [0.3151] + [0.5987]$

=> $P(X \ge 9) = 0.9138$

7 0

3 years ago

A restaurant sells sandwiches and will deliver for an additional cost. To have three sandwiches delivered, it costs $20. To have

zimovet [89]

Answer:

12 sandwiches

Step-by-step explanation:

If 3 sandwiches cost $20

Then x sandwiches cost $80

3----20

x----80

20x=3 x 80

20x=240

x=240/20

x=12 sandwiches

7 0

3 years ago

Help me or I’ll mark Brainly I just need a couple of answers finished

Olin [163]

Answer:

4. 72 m

5. 42 m

6. 66 yd

8. 18 yd

9. 200 cm

8 0

3 years ago

Read 2 more answers

Consider this quadratic equation.

soldi70 [24.7K]

Answer:

-(-3) ± √(-3)^2 - 4(2)(-5) / 2(2) (the last choice).

Step-by-step explanation:

Im ignoring the 2^2 in the equation

The equation transforms to

2x^2 - 3x - 5 = 0 (standard form)

So x = -(-3) ± √(-3)^2 - 4(2)(-5) / 2(2)

3 0

2 years ago