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3 years ago

Find the unit rate 180 miles in 4 hours = miles per hour

Mathematics

1 answer:

Andrei [34K]3 years ago

5 0

Answer:

= 45 miles per hour

Step-by-step explanation:

First, we want a unit rate where 1 is in the denominator.

So we divide,

180 miles/ 4 hours both ÷ by 4

= 45 miles/ 1 hour

= 45 miles/ hour

= 45 miles per hour

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A piece of wood was thrown from the ship into the sea, with a thin rope attached to it. As the ship sailed on, the wood remained

Serhud [2]

Answer:

they would know because the rope will be one sixteenth of a mile and when the rope got maxed out in length it would show how far they have traveled and the wiould calculate how far they have been in that amount of time

Step-by-step explanation:

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3 years ago

Find the volume for #3 THANKSSSSSSSSSS

tresset_1 [31]

The volume of number three is 63.7

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3 years ago

Find x in the proportion x:6= 25:5

Andrews [41]

Step-by-step explanation:

$\frac{x}{6} = \frac{25}{5} \\$

$\frac{x}{6} = \frac{5}{1} \\$

$x = 30$

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3 years ago

John borrows $3000 to

Goryan [66]

The answer is $3,996

To get this you will need to multiply the monthly payments ($333) by the total number of payments (12)

$333x12= $3996

PS: You also payed $996 in intrest

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3 years ago

(05.08) Solve for x: 2 over quantity x minus 2 plus 7 over quantity x squared minus 4 equals 5 over x. (2 points) x = negative 4

Oxana [17]

Answer:

Step-by-step explanation:

The best way to do this is to use your LCM and eliminate the fractions. To find the LCM you have to use all the denominators as a multiplier so the denominator in each term cancels out. We will first factor the x-squared term to simplify and see what 2 factors are hidden there.

$x^2-4$ factors to (x + 2)(x - 2). That means that our 3 denominators that make up our LCM are x(x+2)(x-2). We will mulitply that in to each term in our rational equation, canceling out the denominators where applicable.

$x(x+2)(x-2)[\frac{2}{(x-2)}+\frac{7}{(x-2)(x+2)}=\frac{5}{x}]$

In the first term, the (x-2) will cancel leaving us with

x(x+2)[2] which simplifies to

$x^2+2x[2]$

In the second term, the (x+2)(x-2) cancels out leaving us with

x[7].

In the last term, the x cancels out leaving us with

(x+2)(x-2)[5] which simplifies to

$x^2-4[5]$

Now we will distribute through each cancellation:

2x²+4x;

7x;

5x²-20

Putting them all together we have

2x² + 4x + 7x = 5x² - 20

Combining like terms gives us a quadratic:

3x² - 11x - 20 = 0

Factor that however you find it easiest to factor quadratics and get that

x = 5 and x = -4/3

4 0

4 years ago