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posledela
3 years ago
11

Adam is n years old . Mary Beth is 3n + 4 years old . If Adam is 9 years old, how old is Mary Beth?

Mathematics
1 answer:
Rzqust [24]3 years ago
7 0

Answer: Brailiest plz?

31

Step-by-step explanation:

(3)(9)+4=31

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What’s the solution of y= 3x-1 and y= 3x+4
julia-pushkina [17]

Step-by-step explanation:

solution ? you mean where both lines cross each other ?

these are 2 parallel lines (same slope, but different y-intercept), so they never cross each other.

there is no solution.

formally :

3x - 1 = 3x + 4

-1 = 4

this is wrong. therefore there is no solution.

3 0
3 years ago
Jessie works at a car manufacturing plant. One day she installed a total of 46 axles, 2 in each car she worked on. She wants to
shtirl [24]

Answer:

<h2>             23 cars</h2>

Step-by-step explanation:

total number of cars:    x

the total number of axles:    46

and the number of axles  installed per car:   2

2 axles in each car, then total instaled axles:  2•x

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x = 23

5 0
3 years ago
Determine whether 6/7 and 30/35 are equivalent
aleksandr82 [10.1K]
It is equivalent I believe...hope  this helps!
3 0
3 years ago
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5 0
3 years ago
What is the value of x
irga5000 [103]

Answer:

X=24

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2. 7x + 12 = 180 (Subtract 12 from both sides)

3. 7x = 168 (Divide both sides by 7)

4. x = 24

3 0
3 years ago
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