2 years ago

What is the price of a silver chain purchased for 45.00

Mathematics

2 answers:

Trava [24]2 years ago

5 0

Answer:

$45???

Step-by-step explanation:

ArbitrLikvidat [17]2 years ago

4 0

Answer:

$45

That's all we know from the question.

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Identify the variation as direct, inverse, joint or combined. y = cx²

viva [34]

Answer:

combined variation

Step-by-step explanation:

we have

$y=cx^{2}$

we know that

a)<u> in the interval </u>----> (0,∞)

If the value of x increase the value of y increase

Is a direct variation

b) <u>in the interval -</u>---> (-∞,0)

If the value of x increase the value of y decrease

Is a inverse variation

therefore

Is a combined variation

4 0

3 years ago

Read 2 more answers

The ordered pair (-4, -5) is a solution of the following system of equations 2x+y=13 19x+13y=15

liberstina [14]

Answer:

Step-by-step explanation

672

8 0

2 years ago

The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What

Darina [25.2K]

X = older brother
y = younger brother

Equation 1: x/y = 2/3 ⇒ x = 2y/3
Equation 2: x + 8/y + 8 = 3/4

$( \frac{2y}{3} + 8) / y +8 = \frac{3}{4}$
$(2y + 24)/3 = y + 8 = \frac{3}{4}$
$2y + 24 = 3 (y + 8) = \frac{3}{4}$
$2y + 24 = 3y + 24 = \frac{3}{4}$
$4 (2y + 24) = 3 (3y + 24)$
$8y + 96 = 9y + 72$
$y = 24$

The age of the older brother is 24.

$x = \frac{2y}{3} = \frac{2*24}{3}$
$x = \frac{48}{3}$
$x = 16$

The age of the youngest brother is 16.

5 0

3 years ago

Read 2 more answers

What is 4b+4=22 linear equation

o-na [289]

Answer:

b=4.5

Step-by-step explanation:

4b+4=22

4b=22-4

4b=18

b=4.5

4 0

3 years ago

What is the median of 1.6 , 2.3 , 1.4 , 2.5 , 1.7

lisov135 [29]

First, reorder the numbers from least to greatest

1.4, 1.6, 1.7, 2.5, 2.5

The median is the middle number

1.7 is your answer

hope this helps

6 0

2 years ago