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3 years ago

IVE BEEN WORKING ON THIS ALL DAY

Mathematics

1 answer:

densk [106]3 years ago

4 0

The n-th term of an arithmetic sequence with first term a and common difference d is

a + (n - 1) d

So, the 51st term of A is

30 + 9 (51 - 1) = 480

while the 51st term of B is

30 + 4 (51 - 1) = 230

The difference between them 480 - 230 = 250.

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The furniture shop has an equal number of chairs and tables. After selling half of the numbers of tables and some chairs, they a

Veseljchak [2.6K]

The fraction of the furniture sold that are tables is given by 1/2y / (1/3x + 1/3y)

<h3>Equation</h3>

Let

number of chairs = x
Number of tables = y

Number of tables and chairs sold = 1/2(x + y)

= 1/2x + 1/2y

Fraction of chairs sold = 1/2x
Fraction of tables sold = 1/2y

Furniture remaining = 1/3(x + y)

Fraction of tables sold = 1/2y ÷ 1/3(x + y)

= 1/2y ÷ 1/3x + 1/3y

= 1/2y × 1 / (1/3x + 1/3y)

= 1/2y / (1/3x + 1/3y)

Therefore, the fraction of the furniture sold that are tables is given by 1/2y / (1/3x + 1/3y)

Learn more about equation:

brainly.com/question/2972832

#SPJ1

3 0

2 years ago

sue buys a shirt at a 30% markup. It costs her 31.20 before tax. What was the price of the shirt before the markup?

IRINA_888 [86]

$[Hello,BrainlyUser]$

Answer:

$21.84

Step-by-step explanation:

.30

31.20 * .30=9.36

31.20 - 9.36 =21.84

The price of the shirt before the markup is $21.84.

[CloudBreeze]

6 0

2 years ago

Read 2 more answers

Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent. How many text messag

professor190 [17]

Given that Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent.

Kimora's cell phone bill for one month is $52.

We need to determine the number of text messages Kimora sent for one month.

Also, we need to write and equation and solve it.

<u>The equation:</u>

Let x denote the number of text messages Kimora sent for one month.

Thus, the equation is given by

$35+0.05x=52$

Therefore, the equation for the number of text messages Kimora sent for one month is $35+0.05x=52$

<u>Solving the equation:</u>

We need to solve the equation $35+0.05x=52$

Subtracting both sides of the equation by 35, we get;

$0.05x=17$

Dividing both sides of the equation by 0.05, we get;

$x=340$

Therefore, the number of messages sent is 340.

3 0

4 years ago

I need some help please.

Crazy boy [7]

Answer:

$(-5,-4)$

Step-by-step explanation:

A 180 counterclockwise rotation of (5, 4).

The transformation rule is as follows:

$(x,y)$ turns into $(-x,-y)$ .

5 0

3 years ago

Land in downtown Columbia is valued at $10 a square foot. What is the value of a triangular lot with sides of lengths 119, 147,

stiks02 [169]

Answer:

$87,461

Step-by-step explanation:

Given that the dimensions or sides of lengths of the triangle are 119, 147, and 190 ft

where S is the semi perimeter of the triangle, that is, s = (a + b + c)/2.

S = (119 + 147 + 190) / 2 = 456/ 2 = 228

Using Heron's formula which gives the area in terms of the three sides of the triangle

= √s(s – a)(s – b)(s – c)

Therefore we have = √228 (228 - 119)(228 - 147)(228 - 190)

=> √228 (109)(81)(38)

= √228(335502)

=√76494456

= 8746.1109071 * $10

= 87461.109071

≈$87,461

Hence, the value of a triangular lot with sides of lengths 119, 147, and 190 ft is $87,461.

6 0

3 years ago