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chubhunter [2.5K]
3 years ago
14

Simplify:

Mathematics
1 answer:
kondaur [170]3 years ago
5 0

Answer:

1. 3r - 2

2. 6x - 9

3. -10y + 29

4. 4x - 3

Step-by-step explanation:

i dont know how to explain. Sorry, i just learn about this today. I have the same exactly questions and here is the answer.

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Genes are sections of DNA that code for a particular trait. Genes are?<br>​
Black_prince [1.1K]

Answer:

Genes are DNA transferred to off spring by parents

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2 years ago
Add the polynomials. <br> (7y^2+2y-9)+(-3y^2-y) = ?
Vikki [24]
(7 y^{2}  + 2y - 9) + (-3 y^{2} -y) \\ &#10; \\ &#10;= 4y^{2} + y - 9
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2 years ago
It took Brian 6 hours to drive to the sales conference. He took the same route on the way back home, but
g100num [7]

Answer:  54 mph

Step-by-step explanation:

d-the distance

s+9  -  the speed to the conference

d=6*(s+9)

s- is the speed on the way back home

d=7*s

so    6*(s+9)=7*s

       6s+54=7s

     -6s          -6s

       54= 7s-6s

       s=54  mph

6 0
3 years ago
Which of the following statements is true about the given function?
Maslowich
I think the answer is c
4 0
3 years ago
Read 2 more answers
Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Josiah has punch c
love history [14]

Let x be the number of weeks; therefore, the two linear equations are

\begin{gathered} T=2+7x \\ \text{and} \\ C=11+4x \end{gathered}

Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.

Solving by substitution. Set T=C, then

\begin{gathered} T=C \\ \Rightarrow2+7x=11+4x \\ \Rightarrow3x=9 \\ \Rightarrow x=\frac{9}{3}=3 \\ \Rightarrow x=3 \end{gathered}

Thus, substitute the value of x=3 into the first equation,

\begin{gathered} x=3 \\ \Rightarrow T=2+7\cdot3=23 \\ \Rightarrow T=23 \end{gathered}

Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.

6 0
1 year ago
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