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2 years ago

Who ever can answer these three questions first I will give them a brainliest! Or two

Mathematics

1 answer:

Lilit [14]2 years ago

7 0

Answer:

mathemiatical porbs is is it itroon poickg niucer g tnt g hayabusa sanjo karaneteooo break the code

Step-by-step explanation:

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What real world situation models this equation y=1/20x

garri49 [273]

This is a proportional relationship. So any example that shows as x increases, y decreases.
A real life example would be where
x=time i let the pool drain
y=amount of water left over

As I let the time I let the pool drain increase, the amount of water left in the pool decreases.

3 0

3 years ago

A Boston subway train traveling at constant speed traveled 10.1 miles in half an hour. What was the speed of the subway train? m

viva [34]

Answer: 20.2 mph

Step-by-step explanation:

Given

Train travels 10.1 miles in half an hour i.e.

Distance $d=10.1\ \text{miles}$

time $t=0.5\ hr$

we know, $\text{distance=speed}\times\text{time}$

Insert the values

$\Rightarrow 10.1=v\times 0.5\\\Rightarrow v=20.2\ mph$

6 0

3 years ago

A $1,500 savings bond earns simple interest at the rate of 5% each year. The interest is paid at the end of every month. How muc

kirill [66]

Answer:

300

Step-by-step explanation:

5 percent * 6000

(5:100)* 6000

(5* 6000):100

30000:100 = 300

4 0

3 years ago

Read 2 more answers

Please help me with these. These are so hard.<br><br>

LuckyWell [14K]

$\bf \textit{difference and sum of cubes} \\\\ a^3+b^3 = (a+b)(a^2-ab+b^2) ~\hfill a^3-b^3 = (a-b)(a^2+ab+b^2) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \boxed{a^6+b^6}\implies a^{2\cdot 3}+b^{2\cdot 3}\implies (a^2)^3+(b^2)^3 \\[2em] [a^2+b^2] [(a^2)^2-a^2b^2+(b^2)^2]\implies \boxed{(a^2+b^2)(a^4-a^2b^2+b^4)}$

about the second one... well, is a "fait accompli" that using the pythagorean theorem, if x = 8 and y = 5, the hypotenuse must be √(8² + 5²) = √(89), which is neither of those choices.

5, 8, 13 are no dice, namely 5² + 8² ≠ 13

25, 64, 17 is are no dice too, because 25² + 17² ≠ 64²

however, 5,12 and 13 are indeed a pythagorean triple

also is 39, 80, 89.

when looking for a pythagorean triple, recall that c² = a² + b².

so the longest leg is the sum of the square of the small ones.

so what you'd do is, check the small legs, square them, add them up, if they're indeed a pythagorean triple, they "must" add up to the longest leg.

4 0

3 years ago

How many seashells did Jennifer give to her younger brother

Kitty [74]

Answer:

I need a picture

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers