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3 years ago

How many solutions does the following equation have? -15y+7+17y=2y+70−15y+7+17y=2y+70

Mathematics

2 answers:

Maru [420]3 years ago

7 0

It has one solution Bc there is only one variable

KiRa [710]3 years ago

7 0

Answer:

It has no solutions

Step-by-step explanation:

That is what it says on khan academy

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Sled, pulled by dogs, travels at a constant speed of 52,5 miles in 5 hours. Which of the following equations usos a unit rate to

nadezda [96]

Answer:

i D K

Step-by-step explanation:

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3 years ago

In a right triangle, Sin (30 + x) º = Cos (3x) º. What is the value of x?

pogonyaev

Answer:

$x=15^\circ$

Step-by-step explanation:

In a right triangle:

$\sin \theta =cos(90^\circ-\theta) $ (Complementary angles)$

Therefore, given:

$Sin (30 + x) \º = Cos (3x) \º\\30+x+3x=90^\circ\\30+4x=90^\circ\\4x=90^\circ-30^\circ\\4x=60^\circ\\$Divide both sides by 4\\x=15^\circ$

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3 years ago

Mean of -32, -41, -39, -27, -33, -44

padilas [110]

Add them all, which is -216. Divide by the number of values, which is the mean of -36.

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3 years ago

Ac=r+d for a solve equation for the indicated variable

konstantin123 [22]

$\boxed{a=\frac{r+d}{c}}$

<h2>Explanation:</h2>

Here we have the following expression:

$ac=r+d$

And the question asks for solving the equation for the variable $a$ . So we need to divide both sides of the equation by $c$ :

$ac=r+d \\ \\ \frac{ac}{c}=\frac{r+d}{c} \\ \\ \\ But: \\ \\ \frac{c}{c}=1 \\ \\ \\ So: \\ \\ \boxed{a=\frac{r+d}{c}}$

<h2>Learn more:</h2>

Solving equations: brainly.com/question/10643312

#LearnWithBrainly

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3 years ago

Skeleton practices playing spooky music on his piano he practice 60 minutes every single day how many hours does skeleton play i

k0ka [10]

He plays for 14 hours

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3 years ago