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2 years ago

- 5 + 7 m - 20 = 20 - 2 m

Mathematics

1 answer:

SVEN [57.7K]2 years ago

7 0

Answer:

m=5

Step-by-step explanation:

collecting like terms you have;

-5-20-20 = -2m-7m

-45= -9m

dividing both sides by -9 to get m will become

-45÷-9=5

where minus divides minus and 45 divided by 9 will be equal to 5

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Solve the proportion t+4 / t-2 = 1/4

Lera25 [3.4K]

t+4 / t-2 = 1/4

t=-6 for your answer!

8 0

3 years ago

The Orchard Cafe has found that about 3% of the diners who make reservations don't show up. If 83 reservations have been made, h

daser333 [38]

Answer:

$\mu = 80.51\\\sigma = 1.56$

Step-by-step explanation:

We are given the following information in the question:

Percentage of of the diners who make reservations don't show up = 3%

Number of reservations = 83

Thus, we are given a binomial distribution with n = 83 and p = 0.97

$X\sim \text{ Binom}(p = 0.97, n = 83)$

$\mu = np = (83)(0.97) = 80.51$

Around 81 people can be expected to show up.

$\sigma = \sqrt{np(1-p)} = \sqrt{(83)(0.97)(1-0.97)} = 1.5541 \approx 1.56$

The standard deviation of this distribution is 1.56

6 0

3 years ago

What is the answer to -30x+100=-22x+140

harina [27]

Answer:

x=-5

Step-by-step explanation:

Add 22x to both sides: -8x+100=140

Subtract 100 from both sides: -8x=40

Divide both sides by -8: x=-5

So the answer is x=-5

5 0

3 years ago

Read 2 more answers

I need help again I’m pretty stuck

ANEK [815]

Answer:

1: 45

3: 45

4: 135

5: 103

6: 77

8: 77

9: 135

10: 45

11: 135

12: 45

13: 77

14: 103

15: 77

16: 103

Step-by-step explanation:

6 0

2 years ago

Can you help please ASAP

V125BC [204]

Answer:

Step-by-step explanation:

External angle equals to the sum of opposite internal angles

z - 41° + z - 20° = z + 40°

2z - 61° = z + 40°

2z - z - 61° = 40°

z - 61° = 40

z = 40° + 61°

z = 101°

5 0

3 years ago