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labwork [276]
3 years ago
12

Can you plz help me plz

Mathematics
2 answers:
Harman [31]3 years ago
6 0

Answer:b=16

Step-by-step explanation:trust me bro

Keith_Richards [23]3 years ago
4 0

Answer:

3b+5=53

   -5    -5

3b=48

/3     /3

b=16

Step-by-step explanation:

C

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Suppose you go to an ice cream shop which allows you to choose from 7 flavors of ice cream and 5 toppings. if you decide to get
alexdok [17]

The order doesn't matter.

k objects can be chosen out of n objects, when the order doesn't matter, in C(n,k)=\dfrac{n!}{k!(n-k)!} ways.

So, the answer is C(7,2)\cdot C(5,3)=\dfrac{7!}{2!5!}\cdot\dfrac{5!}{3!2!}=\dfrac{6\cdot7}{2}\cdot\dfrac{4\cdot5}{2}=210 ways.

8 0
3 years ago
Find the sum of the first 5 terms of the series.<br> 7 - 14 + 28 - 56+...
almond37 [142]

Answer:

<u>The sum of the first 5 terms of the series is 77.</u>

Step-by-step explanation:

1. Let's review the information provided to us for solving the sum of the first 5 terms of the series:

1st term = 7

2nd term = - 14

3rd term = 28

4th term = - 56

2. Let's solve the sum of the first 5 terms of the series:

Aₙ = Aₙ₋₁ * -2 ; A₁ = 7

A₁ = 7

A₂ = A₁ * -2 = 7 * - 2 = - 14

A₃ = A₂ * - 2 = -14 * - 2 = 28

A₄ = A₃ * - 2 = 28 * - 2 = - 56

A₅ = A₄ * - 2 = -56 * - 2 = 112

Sum of the first 5 terms of the series = 7 - 14 + 28 - 56 + 112

<u>Sum of the first 5 terms of the series = 77</u>

8 0
3 years ago
Melanie changes $7.50 an hour to babysit. The table shows how much Luisa charges for babysitting. Compare the functions by compa
jeyben [28]

Answer:

7.50 stuped

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
For each set of data find mean median and mode 30,20,14,18,38,22​
lakkis [162]

Answer:

See below

Step-by-step explanation:

Mean: \frac{30+20+14+18+38+22}{6}=23.\overline6\overline6

Median: 14, 18, 20, 22, 30, 38 -> (20+22)/2 = 21

Mode: No mode as all elements are of equal frequency

3 0
3 years ago
Amber has been working very hard and finally got a salary increase of 100%. She was earning $200 per week. How much is she earni
kogti [31]

Answer:

$400

Step-by-step explanation:

Given that:

Earnings per week for Amber = $200

Total increase in the salary as per Amber's hard work = 100%

To find:

Earnings of Amber now?

Solution:

We are given the initial salary and its percentage increase.

We have to find the increased value of salary.

Increase in the salary = 100% of $200

\Rightarrow \dfrac{100}{100}\times \$200\\\Rightarrow \bold{\$200}

Amber's Current salary = Initial salary + Increase in the salary

Putting the values of the initial salary and increase in the salary:

Amber's Current salary = $200 + $200 = <em>$400</em>

3 0
3 years ago
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