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4 years ago

12

25 PTS AND BRAINLIEST TO CORRECT ANSWER!! PLEASE HURRY!!!

2 answers:

serg [7]4 years ago

5 0

A arithmetic sequence is a sequence in which each number of the sequence is obtain by the same way either by adding or subtracting numbers.

In you're case only C is a sequence. You obtain the answer by adding 1,5 to every number in order to obtain the next.

Asnwer:

$\boxed{\bf~C.}$

Hope it helped,

Happy homework/ study/ exam!

Nikolay [14]4 years ago

3 0

The answer is C.

An arithmetic sequence is a sequence which has a rule of adding or subtracting.

C is increasing by 1.5 per step.

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3 years ago

If 30% of a number is 78 and 65% of the same number is 169, find 95% of that<br> number.

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2 years ago

What does equals 8a+16

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3 years ago

Un jardín rectangular de 50 cm de largo por 34 m de ancho está rodeado por un camino de arena uniforme.Halla la anchura de dicho

Anastasy [175]

Answer:

5.85 m

Step-by-step explanation:

The width of the sand road can be calculated knowing its area and the dimensions of the rectangular garden as follows:

$A_{g} = a.b$

<u>Where:</u>

Ag: is the area of the rectangular garden

a: is the length of the rectangular garden = 50 cm = 0.5 m

b: is the width of the rectangular garden = 34 m

$A_{s} = 540 m^{2}$

<u>Where</u>:

As: is the area of the sand road

The relation between the area of the sand road and the area of the rectangular garden is the following:

$A_{s} + A_{g} = (a+2x)*(b+2x)$

$540 m^{2} + 0.5m*34m = ab + 2ax + 2bx + 4x^{2}$

$557 m^{2} = ab + 2x(a + b) + 4x^{2}$

$557 m^{2} - 17m^{2} - 2x(34.5 m) - 4x^{2} = 0$

$540 - 69x - 4x^{2} = 0$

By solving the above equation for x we have two solutions:

x₁ = -23.10 m

x₂ = 5.85 m

Taking the positive value, we have that the width of the sand road is 5.85 m.

I hope it helps you!

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3 years ago