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UNO [17]
3 years ago
12

How do you simplify 12A+2A+A-1

Mathematics
1 answer:
kicyunya [14]3 years ago
4 0
14A - 1, the ones with the variable A can be grouped together, the like terms!
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Every floor of a 20 storey building is 5m in high. If a lift moves 2m every second, how long will it take to move from 3rd floor
kramer

Answer:

30 seconds

Step-by-step explanation:

→ Work out how many floors it's going to travel

15 - 3 = 12 floors

→ Work out how many meters 12 floors is

12 × 5 = 60 meters

→ Work out how long that will take

60 ÷ 2 = 30 seconds

3 0
3 years ago
2783 and 7283. The value of 2 in _ is _ times the value of two in _. The 2 is the underlined digit.
NARA [144]

The value of 2 in 2783 (2000) is 10 times the value of two in 7283 (200).

Hope this helped!

Nate

3 0
2 years ago
Solve the following systems of equations.<br> 2= 2y + 5<br> | 3y - 3x = -12
ivanzaharov [21]

Answer:

x=5/2, y=-3/2. (5/2, -3/2).

Step-by-step explanation:

2=2y+5

3y-3x=-12

--------------

2-5=2y

2y=-3

y=-3/2

3(-3/2)-3x=-12

-9/2-3x=-12

3x=-9/2-(-12)

3x=-9/2+12

3x=-9/2+24/2

3x=15/2

x=(15/2)/3

x=(15/2)(1/3)

x=15/6=5/2

7 0
3 years ago
Help me ASAP giving brianliest!!!!!<br><br>Find the X
ioda
Hey! So I’m pretty sure you multiply 56 and 2, then you swap the sides of the equation. Answer: X=112
6 0
3 years ago
point a is at (-7 5) and point c is at (5 -1). find the coordinates of point b on line ab such that ab is 5 times as long as bc
WARRIOR [948]

Step-by-step explanation:

Let the coordinates of point b be (x,y).

Given the coordinates of a (-7,5) and c(5,-1)

Now according to question

ab = 5bc

using distance formula

\sqrt{(x+7)^2+(y-5)^2} =5\sqrt{(5-x)^2+(-1-y)^2}

Solving we can get

x=-\frac{-11+\sqrt{-4y^2-10y+25}}{2},\:x=\frac{\sqrt{-4y^2-10y+25}+11}{2}'

However, we do need either x or y coordinate of point b to find the other.

5 0
3 years ago
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