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3 years ago

PLEASE HELP ASAP QUESTION IN DETAILS

Mathematics

1 answer:

NeTakaya3 years ago

3 0

What question??? I don't see one

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At 82°F, a certain insect chirps at a rate of 61 times per minute, and at 91°F, they chirp 124 times per minute. Write an equati

Ganezh [65]

Answer:

$y=7x-513$

Step-by-step explanation:

Let

x----> the temperature in degrees Fahrenheit

y ---->insect chirping rate in times per minute

we have the ordered pairs

(82,61) and (91,124)

step 1

Find the slope

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

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

substitute the values

$m=\frac{124-61}{91-82}$

$m=\frac{63}{9}=7$

step 2

Find the equation of the line

we know that

The equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept

we have

$m=7$ ---> the units are chirps per minute/degree F

take the point (82,61)

substitute and solve for b

$61=7(82)+b$

$61=574+b$

$b=-513$

substitute

$y=7x-513$

4 0

3 years ago

Please help me on this !

Naddika [18.5K]

Answer:

x $\leq$ -3

Step-by-step explanation:

4 0

3 years ago

Margie's car can go 32 miles on a gallon of gas, and gas currently cost $4 per gallon. how many miles can Margie drive on $20 wo

Marysya12 [62]

To do this first we will divide the amount of dollars (20) by the amount of dollars 1 gallon is for (4). Then we will multiply the amount of times 4 goes into 20 by 32 and the answer will be the amount of miles she can drive worth $20.

20 ÷ 4 = 3
3 × 32 = 96

So, Margie can drive 96 miles in $20.

Hope I helped ya!! xD

6 0

3 years ago

How do you solve for a y and x intercept?

FrozenT [24]

For a y-intercept, set $x = 0$ in your equation. Remember that a y-intercept intercepts the y-axis, which is found at $x = 0$ . Thus, setting $x = 0$ will give you the place where your equation intercepts the y-axis.

For an x-intercept, do the opposite, set $y = 0$ . This is because the x-axis is found at $y = 0$ . Similar to the y-intercept, this will find you the point where your equation intercepts the x-axis.

3 0

3 years ago

Which proportional statements are true for finding the<br> value of x? Check all that apply.

irina [24]

Answer:

2, 3 5

Step-by-step explanation:

7 0

3 years ago

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