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sergeinik [125]
3 years ago
6

Simplify the expression -12n/35-13n/35

Mathematics
1 answer:
-BARSIC- [3]3 years ago
8 0
-12n/35-13n/35
= (-12n-13n)/35
= -25n/35
= - 5n/7
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When you subtract 22 from a number and the result is doubled, the answer is 6 more than the original number. What is the number?
Karolina [17]
You have to write two equation:
'substract 22 from a number'
X-22=Y
and:
'the result is doubled, the answer is 6 more than the original number'
2*Y=X+6

then you change 'Y' in 2nd equation for left side of 1st equation:
2*(X-22)=X+6
count it and you get:
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6 0
3 years ago
Train tickets cost £7.93 how much would 4 train tickets cost?
andrezito [222]

Answer:

£31.72

Step-by-step explanation:

This is a multiplication problem.

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4 × £7.93 = £31.72

3 0
2 years ago
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Oksanka [162]
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6 0
4 years ago
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What is the slope-intercept form of the linear equation 4x + 2y = 24????
likoan [24]
Slope-intercept form of an equation is y = mx + b, where <em>m </em>is the slope and <em>b </em>is the y-intercept. 

To put this equation in the form of y = mx + b, we have to isolate the y. Here's how:
4x + 2y=24 \\ (4x + 2y)-4x=(24)-4x \\ 2y=-4x+24 \\ (2y)/2=(-4x+24)/2 \\ y= \frac{-4}{2}x + \frac{24}{2}   \\ y=-2x+12

In slope-intercept form, the equation is y = -2x + 12.

Hope this helps!
4 0
3 years ago
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A triangle has a perimeter of 32 inches. The medium side is 2 more than the short side, and the longest side is 3 times the leng
MatroZZZ [7]

Answer:

6

Step-by-step explanation:

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So it's 6 and 6+2 and 6 times 3

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=6+(6+2)+(6×3)

=6+8+18

=32

7 0
3 years ago
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