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HACTEHA [7]
3 years ago
15

Write an equation for this relationship.

Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

y=18.5x

Step-by-step explanation:

74-55.5=18.50

92.50-74=18.50

111-92.5=18.50

(3,55.50)

y=18.5x +b

55.50=18.5(3)+b

55.50=55.50+b

b=0

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In a school, the ratio of musicians to athletes is 3 : 1. The number of musicians is how many times the number of athletes?
Flura [38]

In a school, the ratio of musicians to athletes is 3 : 1. The number of musicians is how many times the number of athletes?

Answer:

3 times as many as the athletes

Hope that helps and good luck

~May

8 0
3 years ago
What are the coordinates of the vertex of the function f(x)=x^2+10x−3? (–5, –28) (–5, 28) (5, –28) (5, 28)
polet [3.4K]

Answer:

(-5,-28)

Step-by-step explanation:

Given

f(x)=x^2+10x - 3

Required

Find the coordinates of the vertex

Given that the function is a quadratic function;

The general form of a quadratic function is

f(x)= ax^2+bx +c

By comparison;

a = 1\ b = 10\ and\ c = -10

To calculate the coordinates of the vertex;

we start by calculating the x-coordinate;

x = \frac{-b}{2a}

Substitute 10 for b and 1 for a

x = \frac{-10}{2*1}

x = \frac{-10}{2}

x = -5

Substitute x = -5 in the given function;

y=x^2+10x - 3

y=(-5)^2+10*-5 - 3

y=25-50 - 3

y=-28

<em>Hence, the coordinates of the vertex is (-5,-28)</em>

6 0
3 years ago
Can someone help me with these please.
ELEN [110]

Answer: Barbara did not include a variable in the term 1.49, which must represents the number of bottles of iced tea she needs to sell.

Step-by-step explanation:

Let be "x" the number of bottle of water Barbara needs to sell and "y"  the number of bottle of iced tea she needs to sell.

She sells iced tea for $1.49 per bottle and water for $1.25 per bottle, so she can write the following equation in order to calculate the number of bottles she needs to sell to earn $100:

1.25x + 1.49y = 100

Since Barbara wrote this equation:

1.25x + 1.49 = 100

We can conclude that the error Barbara made in writing the equation was: She did not include a variable in the term 1.49, which must represents the number of bottles of iced tea she needs to sell.

8 0
3 years ago
Could you guys please help me with this
Illusion [34]
SA = 1,226 in.² (Hope this helps!)
5 0
3 years ago
Read 2 more answers
Find the midpoint of the segment with endpoints of −11 + i and −4 + 4i.
Norma-Jean [14]
The average of those two values is
  (-11-4 +i+4i)/2 = -(15/2) +(5/2)i
3 0
3 years ago
Read 2 more answers
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