2 years ago

$Need help with this pls (quickest answer gets brainliest)

Mathematics

1 answer:

m_a_m_a [10]2 years ago

6 0

Answer:

-1/2

Step-by-step explanation:

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Erica collected a total of $180 for her favorite charity over the first 3 months of the year. She collected the same amount in t

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X+x+3x= 180
5x= 180
x= 36

3(36)= 108
Your answer is D. $108

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3 years ago

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PLEASE HELP!!

jonny [76]

Answer:

A. f(n) = (n + 1)^2 – 1

Step-by-step explanation:

Figure 1

3 = 4 - 1 = 2² - 1 = (1 + 1)² - 1

Figure 2

8 = 9 - 1 = 3² - 1 = (2 + 1)² - 1

Figure 3

15 = 16 - 1 = 4² - 1 = (3 + 1)² - 1

The function is:

f(n) = (n + 1)² - 1

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3 years ago

The ratio of the number of girls to the number of boys in choir is 4 to 5. There are 32 girls in the choir. How many boys are in

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Answer:

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Step-by-step explanation:

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3 years ago

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Write an equation of the line that passes through the given points. (-1,5) and (2, - 7)

Vanyuwa [196]

Answer:

The equation of the straight line is 4x +y = 1

Step-by-step explanation:

Step(i):-

Given points are (-1,5) and ( 2,-7)

Slope of the line

$m =\frac{y_{2}-y_{1} }{x_{2} -x_{1} } =\frac{-7-5}{2-(-1)} = \frac{-12}{3} = -4$

slope of the line m = -4

Step(ii):-

The equation of the straight line passing through the point (-1,5) and having slope 'm' = -4

$y - y_{1} = m( x-x_{1} )$

y - 5 = -4 ( x-(-1))

y -5 = -4 x -4

4 x + y -5 +4=0

4x +y -1 =0

Final answer:-

The equation of the straight line is 4x +y = 1

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2 years ago

The answers are, s=0.20p

larisa86 [58]

Answer:

s=0.20p

Step-by-step explanation:

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