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valentina_108 [34]
2 years ago
10

Plz help also plz tell me step by step plz!

Mathematics
1 answer:
jolli1 [7]2 years ago
3 0

Answer:

A= 60

Step-by-step explanation:

1/2*12*10

60

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Find three consecutive integers whose sum is -21. 2. find three consecutive odd integers whose sum is 144. 3. the sum of three c
fenix001 [56]
Easy way
-21÷3=-7 which is the exact center so
-6, -7, -8

Equation
x + (x+1) + (x+2) = -21
3x + 3 = -21
3x=-24
x=-8
x+1=-7
x+2=-6

2. Consecutive Odd Integers
X, X+2, X+4

X + (X+2) + (X+4) = 144
3X+6=144
3X=144-6=138
X = 138/3 = 46 .....There are no 3 odd Integers that can equal an even integer

3. 3 consecutive even number x, x+2, x+4

X + (X+2) + (X+4) = 48
3X+6=48
3X=48-6=42
X=42/3=14
14, 16, 18
7 0
2 years ago
Y = 5x – 22<br> 3x + 2y = 34
Anika [276]

Answer:

y = 5x – 22

3x + 2y = 34

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The difference of twice a number and 5 is 3.
Elan Coil [88]
Option C is the right way to solve the equation.
6 0
3 years ago
Help and explain explain !!!!!!!!!!
tigry1 [53]

Answer:

x=-1\text{ or }x=11

Step-by-step explanation:

For a=|b|, we have two cases:

\begin{cases}a=b,\\a=-b\end{cases}

Therefore, for 18=|15-3x|, we have the following cases:

\begin{cases}18=15-3x,\\18=-(15-3x)\end{cases}

Solving, we have:

\begin{cases}18=15-3x, -3x=3, x=\boxed{-1},\\18=-(15-3x), 18=-15+3x, 33=3x, x=\boxed{11}\end{cases}.

Therefore,

\implies \boxed{x=-1\text{ or }x=11}

3 0
2 years ago
OBEE
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Unicorn icon icon icon Oml lawn
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