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1 year ago

Is -3(4x+5) equal to -7(8x+9)

Mathematics

1 answer:

Elenna [48]1 year ago

6 0

Answer:

yes it is

Step-by-step explanation:

because -3(4x+5)= 27 so as the other

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A conveyor belt moves at a constant rate of 12 feet in 3 seconds. A second conveyor belt moves at a constant rate of 21 in 7 sec

White raven [17]

Answer:

No.

Step-by-step explanation: If we look at the first conveyor belt, the rate is 12ft in 3 seconds, or 4 feet a second. The second conveyor belt moves at 21 feet in 7 seconds, or 3 feet a second. Since the two values are unequal, we can conclude it is not a proportional relationship.

6 0

2 years ago

The formula for depreciation is V=P(1-r)t where P is the beginning price of the asset, r is the annual rate of depreciation writ

Bad White [126]

Answer:

The value of the car after 5 years is $ 13,035 to the nearest dollar.

Step-by-step explanation:

The formula for depreciation is

$V=P(1-r)^t$

where $P=24,700\:dollars$ is the beginning price of the asset,

$r=12\%$ is the annual rate of depreciation written as a decimal,

$r=0.12$

$t=5$ is the number of years, and V is the value after t years.

Now substitute all these values into the formula to get,

$V=24,700(1-0.12)^5$

This simplifies to,

$V=24,700(0.88)^5$

$\Rightarrow V=24,700(0.5277319168)$

$\Rightarrow V=13,034.97834$

The value of the car after 5 years is $ 13,035 to the nearest dollar.

8 0

3 years ago

A fruit stand sells 6 oranges for $3 and 3 grape fruit for $2.40 .Lionel buys 10 oranges and 11 grapefruits. how much does Lione

Flura [38]

6oragnes=3dollars
divide 6
1oragne=0.5dollar

3grapefruit=2.4dollar
divide3
1grapefruit=0.6dollar

10 oranges and 11 grapefuites
(10 times 0.5)+(11 times 0.6) =
5+6.6=11.6

answer is $11.6

8 0

3 years ago

Read 2 more answers

Given a right triangle with sides a = 3 , b = 4, and c = 5. Find the missing side c of another right triangle with a = 6 and b =

horsena [70]

c = 10

Step-by-step explanation:

We can find out the missing side of a right triangle by using the Pythagorean theorem.

The Pythagorean theorem is...

$a^2+b^2=c^2$

We can even double check the first problem by plugging in everything into the theorem and solving, everything will come out correct. We can plug in the numbers from the second problem into the theorem and find c, also please note that the hypotenuse of a triangle will always be c. It doesn't matter which you put in for a or b, but since the problem gives us which one is a and which one is b, I'll just be plugging it in like that.

$6^2+8^2=c^2$

$36+64=c^2$

$100=c^2$

A lot of people will stop here and think that the answer is 100, but you need to find the square root of 100, since c is squared. The square root of 100 is 10, so...

c = 10

7 0

2 years ago

everyday a person uses about 90 liters of water at home 6 gallons is about 23 liters about how many liters of water does a perso

Trava [24]

Answer:

90 liters

Step-by-step explanation:

It's given in the question!

3 0

1 year ago