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3 years ago

3/4c - 1/4c + 3 = 7 Someone plz help!!

Mathematics

2 answers:

Marina86 [1]3 years ago

6 0

That's the answer and I hope I help

tekilochka [14]3 years ago

6 0

C=8
Step 1: subtract 3 from both sides ( 7-3=4 )
Step 2: add like terms 3/4c - 1/4c = 1/2c
Step 3: divide 4 by 1/2
C = 8

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X + 7у = 23 3х + 14у = 48

Lelechka [254]

Answer:

x + 7у = 23 3х + 14у = 48

Step-by-step explanation:

x + 7у = 23 3х + 14у = 48

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2 years ago

HELPPPPPPP HELP HELP HELP HELP

anzhelika [568]

Answer:

13 units

Step-by-step explanation:

Im doin this in class to so i got you

the equation would be d=(8-(-5))2-(-3-(-2))2

Next solve in the parenthesis 13 power of 2 +-1 power of 2

Then do the powers 169+1

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Then you square 170 which is 13.03840481

That simplifies to 13

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3 years ago

Calculate (7y + 120) + (5y +168) = 180

saul85 [17]

Answer:

y = -9

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

3 0

3 years ago

Quickly plz 9th grade math

Rainbow [258]

Im pretty sure its -8.7

3 0

2 years ago

Read 2 more answers

F(x)=3x 2+x<br><br><br> Find f(−5)

Zina [86]

$\huge \boxed{\mathfrak{Question} \downarrow}$

f (x) = 3x² + x
Find f (-5).

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

Given,

f (x) = 3x² + x

Now, we have to find f (-5). To find this, we just need to substitute -5 in the place of x.

So,

$\sf \: f(x) = {3x}^{2} + x \\ \\ \sf \: \: Substitute \: x \: as \: - 5. \\ \\ \sf \:f( - 5) = 3( - 5) ^{2} + ( - 5) \\ \\ \sf \:Calculate \: -5 \: to \: the \: power \: of \: 2 \: and \: get \: 25. \\ \\\sf \: 3\times 25+5 \\ \\ \sf \:Multiply \: 3 \: and \: 25 \: to \: get \: 75. \\ \\\sf \: 75+5 \\ \\\sf \:Add \: 75 \: and \: 5 \: to \: get \: 80. \\ \\ = \boxed{\boxed{ \bf \: 80}}$

5 0

3 years ago