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CaHeK987 [17]
3 years ago
6

Which expression is equivalent to 1/3 (6m+15) +3

Mathematics
2 answers:
KengaRu [80]3 years ago
6 0
The correct answer is 2x + 8.
Anna35 [415]3 years ago
3 0
The answer is 2m + 8
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Use the distributive property to rewrite the expression 3 (2+11)
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3(2+11) = 3x2 + 3x11

Step-by-step explanation:

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Examine this system of equations. Which numbers can be multiplied by each equation so that when the two equations are added toge
Karolina [17]

The first equation must be multiplied by 18 and second equation must be multiplied by 8

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

\frac{1}{4}x -\frac{1}{6}y = 5 --------- eqn 1

\frac{4}{5}x +\frac{3}{8}y = 10 -------------- eqn 2

Multiply the second equation by 8 both sides to remove the fraction in the variable y

8(\frac{4}{5}x +\frac{3}{8}y = 10)\\\\\frac{32x}{5} + 3y = 80 -------- eqn 3

Multiply the first equation by 18 both sides to obtain the coefficient -3 in the variable y

18(\frac{1}{4}x -\frac{1}{6}y = 5)\\\\\frac{18}{4}x -3y = 90 ---------- eqn 4

Add eqn 3 and eqn 4

\frac{32}{5}x +3y +\frac{18}{4}x -3y = 80+90\\\\\frac{32}{5}x+\frac{18}{4}x = 170

Thus the y-term is eliminated

Therefore, first equation must be multiplied by 18 and second equation must be multiplied by 8

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What shape/figure has reflectional symmetry and point symmetry?
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X+ y = 4 and 2x - 3y = 3
stiks02 [169]

Answer:

This looks hard very hard, use khan Academy

Step-by-step explanation:

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If x is a negative number , what is true about -x plz help me thanks
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If the only thing we know about x is that it is negative, we only know that -x will always be positive.
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