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galina1969 [7]
2 years ago
15

Solve the equation please 142=10+4x+7x x= what

Mathematics
2 answers:
lakkis [162]2 years ago
7 0

Answer:

11

Step-by-step explanation:

142=10+12x

132=12x

11=x

Bumek [7]2 years ago
7 0

Answer:

x=12

Step-by-step explanation:

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Plz help i am confusion
kari74 [83]

Answer:

NO solution , the -17y at both sides will cancel ,so no variable left

Step-by-step explanation:

3 0
3 years ago
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Un trapèze a une aire de 39 cm2. Sa grande base
V125BC [204]

Answer:

A = bh/2

39 = b*3/2

39*2 = b*3/2 * 2

78 = b*3

78/3 = b*3/3

26 = b.

Alors, la grande base est 26 cm et le petit base serait 26/3 = 8.67 cm arrondi.

6 0
3 years ago
What is the length of FG?
zepelin [54]

Answer:

answer i d

Step-by-step explanation:

7 0
3 years ago
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Line j passes through points (10, 10) and (1, 3). Line k is parallel to line j. What is the slope of line k?
SOVA2 [1]

Answer:

= (10-3) ÷ (10-1) = 7 ÷9 = 7/9

Step-by-step explanation:

As they are parallel, their slopes are the same. So if we find slope of line j we find slope of line k when we have two points of one line like (x1 , y1) and (x2 , y2) the slope of that line is (y2-y1) ÷ (x2-x1)

6 0
3 years ago
a parking lot contains (2 wheels) and cars (4 wheels). There are 35 vehicles and 114 wheels. How many motorcycles amd cars are t
ELEN [110]

Answer:

There are 13 motorcycles and 22 cars

Step-by-step explanation:

Let x represent the number of motorcycles, and let y represent the number of cars.  We can set up a system of equations to solve this...

x + y = 35          (there are a total of 35 vehicles)

2x + 4y = 114      (the total number of tires)

Solve the first equation for either variable...

y = 35 - x

Now substitute that value into the other equation and solve...

2x + 4(35 - x) = 114              (y becomes 35 - x)

Now solve...

2x + 140 - 4x = 114

     -2x = -26

            x = 13               (there are 13 motorcycles)

Now plug that value into either original equation to solve for y...

13 + y = 35

   y = 22    (there are 22 cars(

3 0
3 years ago
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