3 years ago

10

Mathematics

1 answer:

gtnhenbr [62]3 years ago

7 0

Answer: Bridget was thinking of the number 2.95

Step-by-step explanation:

21.9 / 2 = 10.95

10.95 - 8 = 2.95

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Why does the quadratic formula work all the time

Monica [59]

the quadratic formula work all the time because it is suitable for every equation.

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3 years ago

A tuxedo rental service charges 150$ flat fee for a suit plus 50$ Per additional day. Which equation correctly models the total

Vilka [71]

Answer:

#1 y=50x+150

Step-by-step explanation

150+ 50$ per day

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3 years ago

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Write an equation of the line, in slope-intercept form, that passes through (-2, 5) and (1, -1).

djyliett [7]

Answer:

y = -2x + 1

Step-by-step explanation:

Formulae:

Slope: $m=\frac{y_2-y_1}{x_2-x_1}\\$

m = slope
y₂ = second y-value
y₁ = first y-value
x₂ = second x-value
x₁ = first x-value

Point-slope form: $y-y_1=m(x-x_1)$

y₁ = first y-value
m = slope
x₁ = first x-value

Slope-intercept form: $y=mx+b$

m = slope
b = y-intercept value

Calculations:

$m=\frac{-1-5}{1-(-2)}\\m=\frac{-6}{3}\\m=-2$

$y-5=-2(x-(-2))\\y-5=-2(x+2)\\y-5=-2x-4\\y=-2x+1$

4 0

3 years ago

A store sold a case of scented candles for $17.85 that had been marked up 110%. What was the original price?

Salsk061 [2.6K]

$17.85 is 110% of the original price.

To find 1% divide this by 110:

17.85/110 = 0.16% (rounded).

Original price is 100% so 0.16*100 = $16.23 (rounded).

Check:

$16.23*1.1=$17.85 (1.1 is decimal equivalent of 110%).

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3 years ago

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A pair of shoes is currently priced at $55.00. If the store manager marks it down to $22.00, by what percent did he mark down th

telo118 [61]

Answer:

60%

Step-by-step explanation:

55 - 22 = 33

33/55 = 0.6

0.6*100 = 60%

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3 years ago