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4 years ago

I need help on this

Mathematics

1 answer:

trapecia [35]4 years ago

3 0

Answer:

17x + 15

Step-by-step explanation:

add 10x and 7x and get 17x

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Joe went shopping for a guitar in Fairfax. He purchased one originally priced at $240 but discounted 80%. If sales tax in Fairfa

puteri [66]

Answer:

$52.44

Step-by-step explanation:

So here is the explanation. $240•.80= 192 (80% as a decimal is .80) 240-192=48. 48•.0925=4.44 which you add 48, and get a sum of $52.44

Hope this helps :)

4 0

3 years ago

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Which is the best estimate?

kotegsom [21]

7.5 bbbbbbbbbbbbbbbbbb

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3 years ago

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can someone explain how I can graph and plot ordered pairs with numbers like (1,75) (2,100) (3,125) (4,125) (5,150)

yaroslaw [1]

You’re going to have to make y increase in increments of 25 or 50 and your x can stay as 1234.

8 0

3 years ago

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$

After 2 years,

$A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0$

And so on. So, after t years, the area of the forest will be

$A(t)=(0.902)^t A_0$

And by substituting the value of A0, we can find an explicit expression:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

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4 years ago

What is the measure of angle x? Enter your answer in the box. m∠x= °

stepan [7]

The measure of angle X is 83 degrees.
180 subtract 53 and 44 gives you 83.

6 0

3 years ago

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