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brilliants [131]
3 years ago
14

Solve for x if -10x + 67 = 17 A) x=4 B) x= -50 C) x=5 D) x=10

Mathematics
2 answers:
olchik [2.2K]3 years ago
8 0
Solve for x if -10x+67=17 the answer is:
D) x=10
Vilka [71]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

First off, you need to subtract 67 from 17 to get the variable alone.

That will leave you with -10x=-50

Then you need to divide -10 and -50,

Two negatives make a positive so

x=5

Answer is C

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Please help me solve question 2
sergiy2304 [10]

Answer:

solution: ( 3 , 6 )

\sf y =6

\sf x =3

Step-by-step explanation:

\sf y = \frac{2}{3} x+4

\sf 2x+3y = 24

make y the subject in equation 2:

\sf 2x+3y = 24

\sf 3y = 24-2x

\sf y = \frac{24-2x}{3}

insert this in equation 1:

\sf \frac{24-2x}{3} =\frac{2}{3} x+4

\sf \sf \frac{24-2x}{3} =\frac{2x+12}{3}

\sf (24-2x) = (2x+12)

\sf -2x-2x=12-24

\sf -4x=-12

\sf x =3

solve for y:

\sf y = \frac{24-2x}{3}

\sf y = \frac{24-2(3)}{3}

\sf y =6

8 0
2 years ago
Read 2 more answers
Will mark brainliest!!!!!<br> complete this statement<br> 15x^4a^2+20x^2a^3=5x^2a^2 ( )
Angelina_Jolie [31]
15x^4a^2+20x^2a^3=5x^2a^2 (3x^2+ 4a )

Answer: 3x² + 4a
5 0
3 years ago
30 POINTS! Monica paid sales tax of $1.50 when she bought a new bike helmet. if the sales tax rate was 5%, how much did the stor
avanturin [10]
Hmm... well, here ya go. 

1.50 ÷ 0.05 = 30 
So, the total is $30 
As for the tax rate, including the total, it would be $31.50.

Hope I helped.  
6 0
3 years ago
Read 2 more answers
If (ax+2)(x+b) = 3x^2 + 5x + c for all values of x, what is the value of c?
mr Goodwill [35]

Answer: is it 0.258

Step-by-step explanation:

4 0
3 years ago
Marcia has $84 less than three times as much as sue. together they have $132. how much money does marcia have?
Brut [27]
Let x = sue
and then let 3x-84 = marcia
therefore
(x)+(3x-84)=132
4x-84=132
4x=216
x=54

however just solving for x doesnt completely solve. it only shows sues money because x = sue
for marcia
3x-84
3(54)-84
162-84
78

therefore Marcia has 78$.
5 0
3 years ago
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