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slava [35]
3 years ago
15

2 less than six times a number.

Mathematics
1 answer:
prisoha [69]3 years ago
8 0

Answer:

6x-2

Step-by-step explanation:

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Write as an equation: Alice, Barbara, and Carol are sisters. Alice is 3 years younger than Barbara, and Barbara is 5 years young
Dmitrij [34]

a+b+c=68

b-3=a

c-5=b

now just solve the system of equations, substitue so that there are only b's in the equation:

a+b+c=68

(b-3) + b + (b+5) = 68

3b=66

b=22

Therefore Barbara is 22

4 0
3 years ago
Find the greatest common factor.<br> 42²x² + 42²x+ 40²<br> Enter the correct answer.
svlad2 [7]

Answer:

4a^2

Step-by-step explanation:

4a^2x^2+4a^2x+4a^2= \\\\4a^2(x^2+x+1)

Therefore, the largest common factor is 4a^2. Hope this helps!

3 0
3 years ago
Which quadrant in a coordinate plane has two positive points
vodomira [7]

Answer:

The first quadrant

Step-by-step explanation:

Aka upper right quadrant

6 0
3 years ago
Is the pythagorean theorem true for all similar triangle
mojhsa [17]
False because you can only use the Pyth. Theorem on right triangles which may not necessarily be ALL similar triangles.
6 0
3 years ago
10. If x = -2, y=-6 and z= 4, find the value of 4xy<br>Z​
Grace [21]

Answer:

192

Step-by-step explanation:

Given

4xyz ← substitute given values into expression

= 4 × - 2 × - 6 × 4 = - 8 × - 24 = 192

5 0
3 years ago
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