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andreev551 [17]
3 years ago
10

How do you expand 3(m - 7 + 4m + 2) using distributive property?

Mathematics
1 answer:
zheka24 [161]3 years ago
8 0

Answer:

3m - 21 + 12m +6

Step-by-step explanation:

Multiply everything inside the brackets by 3!

3m - 21 + 12m +6

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What exponent would makethis statment true 100,000=10?​
Phantasy [73]

Answer:

5

Step-by-step explanation:

Fifth-grade math class taught me.

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Libby has a square box of chocolate. The chocolates are arranged evenly in rows. Each chocolate piece in the box takes up one sq
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There are 8 chocolate peices in one row of libby's box.
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PLEASE HELP ME ASAP<br> A.20<br> B.22<br> C.7<br> D.11<br> Amosc pimp.chriz
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It’s 11! The answer is D
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3 years ago
Solve the system of equations y = 40x2 and y = 19x + 3 algebraically.
ikadub [295]

We have been given a system of nonlinear equations.

\\y=40x^{2},y=19x+3

In order to solve this system we can first equate the two equations in order to get a quadratic in x.

\\40x^{2}=19x+3

Our next step is to bring all the terms on one side.

\\40x^{2}-19x-3=0

Now we have to solve this equation. We can solve it by factoring using the splitting middle term method.

\\40x^{2}-24x+5x-3=0

\\8x(5x-3)+(5x-3)=0

\\(8x+1)(5x-3)=0

Upon setting each of these factors equal to zero using zero product property we get

\\8x+1=0 \text{ or } 5x-3 = 0

Upon solving both these equations we get

\\x=-\frac{1}{8} \text{ or } x=\frac{3}{5}

Now we can substitute these values of x in the equation

y=19x+3

We get

\text{For }x=- \frac{1}{8} \Rightarrow y=19(- \frac{1}{8})+3= \frac{5}{8}\\

\text{For }x= \frac{3}{5}\Rightarrow y=19( \frac{3}{5})+3= \frac{72}{5}\\

Therefore, our final set of solutions are

(x,y)=(- \frac{1}{8},\frac{5}{8}) \text{ and } ( \frac{3}{5}, \frac{72}{5})


6 0
3 years ago
Read 2 more answers
3n-3+10+2n=10 help plz show work
NikAS [45]

Answer:

n=3/5

Step-by-step explanation:

3n−3+10+2n=10

Step 1: Simplify both sides of the equation.

3n−3+10+2n=10

3n+−3+10+2n=10

(3n+2n)+(−3+10)=10(Combine Like Terms)

5n+7=10

5n+7=10

Step 2: Subtract 7 from both sides.

5n+7−7=10−7

5n=3

Step 3: Divide both sides by 5.

5n /5

= 3 /5

n= 3 /5

4 0
3 years ago
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