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3 years ago

5

M/-5=-15 solve for m

1 answer:

Sergeu [11.5K]3 years ago

5 0

Answer:

m=75

Step-by-step explanation:

75/-5=-15

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Linear equations-Transposition of formulae Why does this turn into this

katen-ka-za [31]

That's not correct. In general, you would have

$x^2=\dfrac5{a^2}\implies\sqrt{x^2}=\sqrt{\dfrac5{a^2}}\implies |x|=\dfrac{\sqrt5}{\sqrt{a^2}}\implies |x|=\dfrac{\sqrt5}{|a|}$

Assuming $a>0$ , you have $|a|=a$ , so this turns into

$|x|=\dfrac{\sqrt5}a\implies x=\pm\dfrac{\sqrt5}a$

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4 years ago

Use the rules for multiplication by powers of 10 to calculate 3 times 100

Georgia [21]

3 * 100 = 300 because it is only asking you to claculate 3*100

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3 years ago

Find m∠QPR..........

dexar [7]

Hey there! :)

Answer:

m∠QPR = 25°.

Step-by-step explanation:

Given:

m∠QPS = 40°

m∠RPS = 8x + 7°

m∠QPR = 9x + 16°

m∠QPS = m∠RPS + m∠QPR, therefore:

40° = 8x + 7° + 9x + 16°

Combine like terms:

40° = 17x + 23°

Subtract 23° from both sides:

17° = 17x°

Divide both sides by 17:

x = 1°

If m∠QPR = 9x + 16°, substitute in 1 for 'x':

9(1) + 16 = 9 + 16 = 25°.

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3 years ago

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In the figure shown, what additional information is needed to show that △ABC≅△DEF by ASA?

Aleksandr-060686 [28]

Answer:ok

Step-by-step explanation:

7 0

3 years ago

Aubrey and Charlie are driving to a city that is 120 miles from their house. they have already traveled 20 miles ,and they are d

Phoenix [80]

Answer:

The linear function is $y=50x+20$

The reasonable domain is $0\ hours \leq x\leq 2\ hours$

Step-by-step explanation:

Let

x ----> the time in hours

y ---> the distance in miles

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem

The slope is $m=50\ \frac{miles}{hour}$

The y-intercept is $b=20\ miles$

substitute

$y=50x+20$

<em>Find the domain for x</em>

For y=120 miles

Find the value of x

substitute the value of y in the linear equation and solve for x

$120=50x+20$

$50x=120-20$

$50x=100$

$x=2\ hours$

therefore

The domain is the interval [0,2]

$0\ hours \leq x\leq 2\ hours$

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3 years ago