3 years ago

Explain how you can tell if the expressions 7x - 4 and 6x - 4 are equivalent using the interactive Tool?

Mathematics

2 answers:

Juli2301 [7.4K]3 years ago

8 0

What's the interactive tool?

olya-2409 [2.1K]3 years ago

4 0

56 is the answer brAinly is really cool to have on you phone download it you need it

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Counting from 1 to 46, how many 4s will you encounter? 8 10 11 12 14

Ray Of Light [21]

Answer:

Step-by-step explanation:

4=1

14=2

24=3

34=4

40=5

41=6

42=7

43=8

44=9

45=10

46=11

You will encounter 11 4s.

5 0

3 years ago

The sales tax on a used car is $168168, and the sales tax rate is 55%. Find the purchase price (the price before taxes are

Naily [24]

Answer:

$92492.40

Step-by-step explanation:

168168.00 - 55% (75675.60)= $92492.40

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3 years ago

The cost for x number of gallons of heating oil can be represented by the function f(x)=4x+6 in the context of the problem expla

deff fn [24]

Answer:

This means that the cost of 2 heating oil gallons is 14.

Step-by-step explanation:

f(x) = 4x + 6 , where x is the number of heating oil gallons.

And f(x) = 4x + 6 is the equation for the cost of x gallons.

When the number of gallons are 2 then the cost is;

f(2) = 4(2) + 6 = 8 + 6 = 14

This means that the cost of 2 heating oil gallons is 14.

7 0

3 years ago

A truck driver travels at 59 miles per hour. The truck tires have a diameter of 30 inches. What is the angular velocity of the w

Misha Larkins [42]

Answer:

$661.4\ rpm$

Step-by-step explanation:

we know that

1 mile=63,360 inches

step 1

Find the circumference of the wheels

$C=2\pi r$

we have

$r=30/2=15\ in$ -----> the radius is half the diameter

substitute

$C=2\pi(15)$

$C=30\pi\ in$

assume

$\pi =3.14$

$C=30(3.14)=94.2\ in$

Remember that

The circumference of the wheels represent one revolution

Convert 59 miles per hour to inches per minute

$59\ mi/h=59*63,360/60=62,304\ in/min$

using proportion find the number of revolutions

$\frac{1}{94.2}\frac{rev}{in}=\frac{x}{62,304}\frac{rev}{in}\\ \\x=62,304/94.2\\ \\x=661.4\ rev$

therefore

substitute

$62,304\ in/min=661.4\ rev/min=661.4\ rpm$

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3 years ago

Please answer this question

gladu [14]

Answer:

hope that helped <3

8 0

2 years ago

Read 2 more answers