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2 years ago

If p and q vary inversely and p is 4 when q is 30, determine q when p is equal to 10.

Mathematics

1 answer:

Sphinxa [80]2 years ago

4 0

answer:

q = 75

step-by-step explanation:

we can set up an proportion for this

when p = 4, q = 30

put this as a proportion so that this is one side
look at what i did

4 / 30 = 10 / x

4x = 300

x = 75

here i used x as q, therefore whatever x is, will be q

q = 75

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Which number has a 3 with a value that is 100 times greater than the value of 3 in 20.342 ?

Elodia [21]

Answer:

You didnt give any options, but I'm guessing one of them has a 3 in the tens digits, which should be the right answer.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Paula rows 6 miles upstream in 3 hours she returns downstream in 2 hours. Which is the rate Paula rows in still water? What is t

KiRa [710]

Answer:

Upstream - 2 miles per hour

Downstream - 3 miles per hour

Step-by-step explanation:

For the speed upstream, the answer would be 2 miles per hour (mph), because 6÷3=2.

For the speed downstream, the answer would be 3 miles per hour (mph), because 6÷2=3.

Both answers come in similar methods. Hope this helps you!

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2 years ago

Read 2 more answers

CAN ANYBODY PLS HELP

Firdavs [7]

The correct options are

$5x = - 58 \:$ $5x + 4 = - 54$

<h3>How to find same value of x?</h3>

given that

$\frac{5}{6} x + \frac{2}{3} = - 9$

first find value of x to obtain the equations have the same value of x.

Find the L.C.M between the 6,3

$\frac{5x + 4}{6} = - 9$

Then Cross multiplication should be done

$5x + 4 = - 9 \times 6 \\ 5x + 4 = - 54 \\ 5x = - 54 - 4$

$5x = - 58$

Hence the correct options are

$5x = - 58$

$5x + 4 = - 54$

Learn more about problems on equations, refer:

https://brainly.in/question/742266

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7 0

11 months ago

Does anyone know an equation for this table:

polet [3.4K]

Answer:

Don't know the exact equation but trying to explain

X is what the stuff that problem saying. Let's say you have books from library and you're returning them late you will pay $30 dollars for each of them

6 0

2 years ago

See image, finding the height of a triangle with law of sines

djyliett [7]

Answer:

height of the Eiffel tower ≈ 300.0 m(nearest tenth of a meter)

Step-by-step explanation:

The triangle TDE is not a right angle triangle. Angle TDE can be gotten by subtracting 63° from 180°. Angle on a straight line is 180°. Therefore, 180° - 63° = 117

°.

angle TDE = 117°

angle DTE = 180° - 117° - 31° = 32°

DE = 346.4 m

Side TD can be find using sine law

346.4/sin 32° = TD/sin 31°

cross multiply

346.4 × 0.51503807491 = 0.52991926423TD

178.409189149 = 0.52991926423TD

divide both sides by 0.52991926423

TD = 178.409189149/0.52991926423

TD = 336.672397461

TD ≈ 336.67 m

The side TD becomes the hypotenuse of the new right angle triangle formed with the height of the Eiffel tower.

Using sin ratio

sin 63° = opposite/hypotenuse

sin 63° = h/336.67

cross multiply

h = 336.67 × 0.89100652418

h = 299.975166498

height of the Eiffel tower ≈ 300.0 m(nearest tenth of a meter)

4 0

2 years ago