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MrMuchimi
2 years ago
5

Hi I need help on my homework plz help ​

Mathematics
1 answer:
nordsb [41]2 years ago
8 0
Okay I can help you !
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Pls answer these questions correctly for brainly
FinnZ [79.3K]

40 - 3k + 10k = -10 - 8k - 10

40 + 7k = -10 - 8k - 10

40 + 7k = -8k - 20

40 + 7k - 40 = -8k - 20 - 40

7k = -8k - 60

7k + 8k = -8k - 60 + 8k

15k = -60

15k/15 = -60/15

k = -4

8 0
3 years ago
49 points <br> I don't get my homework <br> What is 968700 + 754800
Harrizon [31]

Answer:1723500

Step-by-step explanation:I used a calculator.

7 0
3 years ago
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Define product. give an example of two whole number factors with a product of 9
Kryger [21]

Answer:

Product is the answer of two numbers that are multiplied together.

3 x 3=9

Step-by-step explanation:

8 0
3 years ago
Two trains are 210 miles apart, and their speeds differ by 17 mph. Find the speed of each train if they are traveling toward eac
Marizza181 [45]
V1 - velocity first train
v2 - velocity second train
v2 > v1

v2 - v1 = 17 mph

We know, that: 
s_1+s_2=210 \ [miles] \\ \\ t_1=t_2=2h

So:

v_1=\dfrac{s_1}{t_1}=\dfrac{s_1}{2} \\ \\ v_2=\dfrac{s_2}{t_2}=\dfrac{s_2}{2} \\ \\ \\ v_1+v_2= \dfrac{s_1}{2}+\dfrac{s_2}{2} \\ \\ v_1+v_2= \dfrac{s_1+s_2}{2} \\ \\  v_1+v_2= \dfrac{210}{2}=105

NOw we've got simple system of equations:

+\begin{cases} v_2-v_1=17 \\ v_2+v_1=105\end{cases} \\ \\ 2v_2=122 \qquad /:2 \\ \\ v_2=61 \qquad [mph] \\ \\ v_2-v_1=17 \\ \\ 61-v_1=17 \\ \\ v_1=44

Velocities of these trains are  61mph  and 44mph

3 0
3 years ago
Read 2 more answers
Please help ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.
Vladimir79 [104]
Understand the problem
Gather your resources
Come to an answering
Check your answer and present the solution
3 0
3 years ago
Read 2 more answers
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