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3 years ago

After a 20% increase an article cost $270. The original cost of the article is

Mathematics

2 answers:

aksik [14]3 years ago

8 0

$216
hope this helped!

Gekata [30.6K]3 years ago

3 0

Answer:

$216.00

Step-by-step explanation:

Final price: $216.00

Saved amount: $54.00

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The chirping rate of crickets varies linearly with outdoor temperature. one evening, nicki counted 44 cricket chirps in one 15-s

masha68 [24]

Answer:

Option D. T=7/12c+10/3

Step-by-step explanation:

Let

T -----> the temperature in degree Celsius (y-axis)

c ---> the number of cricket chirps,that are counted in a 15-second span (x-axis)

we have the ordered pairs

(32,22) and (44,29)

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the given values

$m=\frac{29-22}{44-32}$

$m=\frac{7}{12}\ \frac{^oC}{chirp}$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=\frac{7}{12}$

$point\ (32,22)$

substitute

$y-22=\frac{7}{12}(x-32)$

step 3

Convert to slope intercept form

$y=mx+b$

isolate the variable y

$y-22=\frac{7}{12}(x-32)\\\\y-22=\frac{7}{12}x-\frac{224}{12}\\\\y=\frac{7}{12}x-\frac{224}{12}+22\\\\y=\frac{7}{12}x+\frac{40}{12}$

simplify

$y=\frac{7}{12}x+\frac{10}{3}$

5 0

3 years ago

The adult skeleton consists of 206 bones. There are 28 bones in the skull and 30 bones in the arms and legs. Out of the 28 skull

telo118 [61]

Answer:

There are <u>16</u> more bones in the arms and legs than in the face.

Step-by-step explanation:

Please mark brainliest

5 0

3 years ago

Read 2 more answers

A 4 pound bag of oranges costs $3.92.A 40 pound case of oranges costs $39.20.Which equation below is correct for this proportion

brilliants [131]

Answer:

$y = 0.98x$

Step-by-step explanation:

Given

Cost of 4 lb orange = $3.92

Cost of 40 lb orange = $39.20

Required

Determine the proportion

The proportion can be calculated susing:

$y = kx$

<em>Where k = proportion</em>

Make k the subject:

$k = \frac{y}{x}$

When y = 3.92 and x = 4

The proportion (k) is calculated as thus:

$k = \frac{y}{x}$

$k = \frac{3.92}{4}$

$k = 0.98$

When y = 39.2 and x = 40

Using the same formula:

$k = \frac{39.2}{40}$

$k = 0.98$

Substitute 0.98 for k in $y = kx$

Hence, the proportional relationship is

$y = 0.98x$

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4 years ago

Without plotting the point (-3, -4), determine in which quadrant

Mandarinka [93]

Answer:

Step-by-step explanation:

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4 years ago

Pls help asap! ill give brainliest:))

slega [8]

Answer:

the answer should be 38.75

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3 years ago

After a 20% increase an article cost $270. The original cost of the article is​

After a 20% increase an article cost $270. The original cost of the article is