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Vaselesa [24]
3 years ago
5

Determine the solution using substitution y=3/2x-6 2y=7-4x

Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0

Answer:

x = 19/7 , y= -27/14

Step-by-step explanation:

ira [324]3 years ago
4 0
(19/7, -27/14) x= 19/7 y=-27/14
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Simplify 7^2 • 7^6 =
Nitella [24]
Answer: 7^8

Explanation: just add the exponent if you are multiplying two things with the same base
4 0
2 years ago
a survey asked 72 randomly chosen students if they were going to attend the school play. twelve said yes. if there are 210 ticke
Ugo [173]
We can solve this by setting up a proportion:

12 seeing the play/ 72 students = 210 seeing the play/ x students

We can cross multiply to solve for x:

(12)x=(72)(210)
12x=15,120
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4 0
3 years ago
Which of these strategies would eliminate a variable in the system of equations?
KATRIN_1 [288]
Answer: A and B


Explanation: I’ll use A as an example. When you multiply the bottom equation by -3/2, the equation becomes: -9x+6y=-3. Then, proceed to add the equations. Look at X and Y in both equations: do the Y variables in both equations equal to 0 when added together? Yes, because -6y+6y=0! Therefore, you can eliminate y in these two equations.




Hope that’s helps シ
6 0
3 years ago
Suppose that during one period extreme cold,the average daily temperature decreased 1 1/2 F each day. How many days did it take
Alenkasestr [34]

We have been given that during one period extreme cold, the average daily temperature decreased 1\frac{1}{2} degree F each day. We are asked to find number of days it will take for the temperature to decrease by 9 degree F.

First of all we will convert our mixed fraction into improper fraction.

1\frac{1}{2}=\frac{3}{2}

Now we will divide total temperature change (9) by average daily temperature change (\frac{3}{2}) to find number of days.

9\div\frac{3}{2}

Dividing a number by a fraction is same as multiplying the number by reciprocal of the fraction.

9\cdot\frac{2}{3}

3\cdot2=6

Therefore, it will take 6 days for the temperature to decrease by 9 degree F.

7 0
3 years ago
Please help me. Multiply using the power of ten. Enter your answer using digits.
aksik [14]

Answer:

14.5 × 10²(100) = 1,450

  • Move the decimal place <em>r</em> places to the right for every 0, in this case, 2 zeros, so move the decimal 2 places to the right.
7 0
2 years ago
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