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3 years ago

Mr. W is having a yard sale, where he is selling iPad chargers and wireless keyboards. At the

Mathematics

1 answer:

photoshop1234 [79]3 years ago

3 0

Answer: the system of inequalities are

x + y ≤ 14

18x + 38y = 342

Step-by-step explanation:

Let x represent the number of iPad chargers sold.

Let y represent the number of keyboards sold.

At the end of the day, he knows he sold a maximum of 14 items. This is expressed as

x + y ≤ 14

If he

charged $18 for each iPad charger (x) and $38 for each keyboard (y) and earned a total of $342, the expression would be

18x + 38y = 342

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A triangle has angles that measure 49° and 84°.

BaLLatris [955]

A plat angle measure 180° it means that A+B+C=180 Then if A=49° and B=84. ,A+B=133 Then if we make 180-133 we we would have 47

5 0

3 years ago

The arithmetic sequence a_ia i a, start subscript, i, end subscript is defined by the formula: a_1 = 15a 1 =15a, start subsc

daser333 [38]

Answer:

-1,512,390

Step-by-step explanation:

Given

a1 = 15

$a_i = a_{i-1} -7$

Let us generate the first three terms of the sequence

$a_2 = a_{2-1}-7\\a_2 = a_1 - 7\\a_2 = 15-7\\a_2 = 8$

For $a_3$

$a_3 = a_{3-1}-7\\a_3 = a_2 - 7\\a_3 = 8-7\\a_3 = 1$

Hence the first three terms ae 15, 8, 1...

This sequence forms an arithmetic progression with;

first term a = 15

common difference d = 8 - 15 = - -8 = -7

n is the number of terms = 660 (since we are looking for the sum of the first 660 terms)

Using the formula;

$S_n = \frac{n}{2}[2a + (n-1)d]\\$

Substitute the given values;

$S_{660} = \frac{660}{2}[2(15) + (660-1)(-7)]\\S_{660} = 330[30 + (659)(-7)]\\S_{660} = 330[30 -4613]\\S_{660} = 330[-4583]\\S_{660} = -1,512,390$

Hence the sum of the first 660 terms of the sequence is -1,512,390

6 0

3 years ago

Can someone help me with this please?

Assoli18 [71]

Answer:

1 over 2 is the slope :)

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

Mrs Tilley Keeps a variety of poultry. This pie chart shows the numbers of What each kind:

morpeh [17]

Answer:

32. 40%

33. 15%

34. 1/5

35. 1/4

Step-by-step explanation:

Question 32

% Hens = No. of hens / Total poultry
% Hens = 72 / 27 + 72 + 45 + 36
% Hens = 72 / 180 = 2/5
% Hens = 40%

Question 33

% Geese = No. of geese / Total
% Geese = 27/180
% Geese = 3/20
% Geese = 15%

Question 34

% Ducks = No. of ducks / Total
% Ducks = 36/180
% Ducks = 1/5

Question 35

% Turkeys = No. of turkeys / Total
% Turkeys = 45/180
% Turkeys = 1/4

3 0

2 years ago

Read 2 more answers

#+3)(2+1) for x = 3. c+5)(x-5)

hodyreva [135]

Answer:

x=1/3

Step-by-step explanation:

first multiply both bracket to together and then you get, 9x=3

x=1/3, then sub in to other equation and get the rest answer.

hope it helpful

3 0

2 years ago