Is 30x176 three times bigger then 10x176? Why? Please help

Mathematics

1 answer:

zepelin [54]2 years ago

5 0

Answer: no it not bigger because 30 is bigger than 10

Step-by-step explanation:

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A northbound bus returns to the bus stop every 20 minutes. The southbound bus returns to the bus stop every 25 minutes.How long

Klio2033 [76]

They stop at the same time after 4 times for the southbound bus to return and five times for the northbound bus returns to the bus stop

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3 years ago

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4x−4<8 AND 9x+5>23 Solve for X.

siniylev [52]

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3 years ago

Kelsey has a little baby brother he weighs 8 pounds in 3 ounces the doctor said the baby should get about 5 ounces per week at t

Virty [35]

Answer:

11.9375 and just round it

Step-by-step explanation:

multiply 8 pounds to 16 to get ounces and then add three and 60(5 x 12) and then add all of it together and then divide it to 16 to get 11.94 pounds or however you want to round it. If you need more a more deeper explanation just ask.

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3 years ago

Find the average rate of change of k(x)=5x–19 over the interval [ - 14, - 4].

rusak2 [61]

The rate of change of a function can be modeled with the following expression:

$\frac{\Delta{k{x)}}{\Delta{x}}$

Where Δx is the change in x value, and Δk(x) is the corresponding change in k(x). We're given the two extremes of x, so we can calculate the change in x to be

$\Delta{x}=-4-(-14)=10$

To find the change in k(x), we can calculate the values of k(x) at x = -14 and x = -4 and find the difference between them:

$k(-14)=5(-14)-19=-70-19=-89\\ k(-4)=5(-4)-19=-20-19=-39\\ \Delta{y}=k(-14)-k(-4)=-89-(-39)=-50$

So, the rate of change for the function from x = -14 to x = -4 is

$\frac{\Delta{y}}{\Delta{x}}= \frac{-50}{10}=-5$

7 0

4 years ago

A certain forest covers an area of 2400 km^2. Suppose that each year this area decreases by 5.75%. What will the area be after 8

kolezko [41]

We have to use the function A(t)= a(1 +/- r)^t
So A is going to be the answer- the area after 8 years. t is going to be 8, because t is time. a is 2400 because that's the starting value. Finally, we're going to turn 5.75% into it's decimal form of .0575. That's going to be r, and because the area is decreasing, we will subtract r from 1.
Our new function is:
A=2400(1-.0575)^8
Simplify a little bit.
A=2400(.9425)^8
Bring .9425 to to power of 8 and then multiply by 2400 because PEDMAS.
A=1494.38366866
The rounded answer is 1494 kilometers squared.

5 0

3 years ago