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3 years ago

Use order of operations to solve. PEMDAS 7+8(3*3-2)

Mathematics

1 answer:

drek231 [11]3 years ago

5 0

Answer:

133

Step-by-step explanation:

7 + 8(9 -2)

7 + 8(7)

7+56

133

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For number 3 I don’t rlly get it

choli [55]

Answer:

Step-by-step explanation:

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3 years ago

Evaluate 1 3 m − 1 − 1 2 n 3 1 m−1− 2 1 nstart fraction, 1, divided by, 3, end fraction, m, minus, 1, minus, start fraction,

luda_lava [24]

Answer:

Step-by-step explanation:

Apparently, you want the value of ...

$\dfrac{1}{3}m-1-\dfrac{1}{2}n = \dfrac{m}{3}-\dfrac{n}{2}-1\\\\=\dfrac{21}{3}-\dfrac{12}{2}-1=7-6-1\\\\=\boxed{0}$

The value of the given expression for the given variable values is zero.

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3 years ago

Find x helpppppppppppp

lidiya [134]

$|2x - 1| = | - x - 2|$

Thus ;

$2x - 1 = - x - 2$

Add both sides x

$2x + x - 1 = - x + x - 2$

$3x - 1 = - 2$

Add both sides 1

$3x - 1 + 1 = - 2 + 1$

$3x = - 1$

Divide both sides by 3

$\frac{3x}{3} = \frac{ - 1}{3} \\$

$x = - \frac{1}{3} \\$

$2x - 1 = - ( - x - 2)$

$2x - 1 = x + 2$

Subtract both sides x

$2x - x - 1 = x - x + 2$

$x - 1 = 2$

Add both sides 1

$x - 1 + 1 = 2 + 1$

$x = 3$

There u go ...

3 0

2 years ago

Find the x and the area of the shape perimeter is 64.5

Umnica [9.8K]

Answer:

x=8

A = 192

Step-by-step explanation:

The perimeter is the sum of the outer lengths

17.9 + 22.6 + 3x = 64.5

Combine like terms

40.5 +3x = 64.5

Subtract 40.5 from each side

40.5 +3x -40.5 = 64.5 - 40.5

3x =24

Divide each side by 3

3x/3 = 24/3

x = 8

The area of a triangle is given by

A = 1/2 bh

The base is 3x = 3(8) =24

and the height is 2x = 2(8) =16

A = 1/2 (24) * 16

A =192

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3 years ago

Represent the following in rule method C = {0,1,2,3, ......,19}

monitta

Answer:

$C={x\:l\:x \: are \: whole \: numbers \: less \: than \: 20}$

4 0

3 years ago

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