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ser-zykov [4K]
3 years ago
15

How do I simplify an expression

Mathematics
2 answers:
tatyana61 [14]3 years ago
8 0
Do      Parenthesis
          Exponents   [brackets]
          Multiplication
          Division
          Addition
         Subtraction

do PEMDAS in order.

you also need to do what comes first
so if in the  expression subtraction comes before addition you do subtraction first. If division comes before multiplication do division first even though multiplication comes first in PEMDAS 




Sladkaya [172]3 years ago
7 0
Start with parentheses first
Afterwards do exponents
Next do either multiplication or division (L to R)
Then Addition and Subtraction (L to R)
__________________________________________
Then solve to find your answer
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Find the value of the expression 3m^2+2p^2-15 when m =3 and p = 10
mylen [45]

3m {}^{2}  +  {2p}^{2}  - 15
m = 3
p = 10

3 \times 3 {}^{2}  + 2 \times  {10}^{2}  - 15 =
3 \times 9 + 2 \times 100 - 15 =
27 + 200 - 15 =
212

Hence, the answer is 212.



5 0
3 years ago
What is the value of x in the equation 0.7 x - 1.4 = -3.5
Daniel [21]

Answer:

x=12.5

Step-by-step explanation:

0.7x times (-1.4)=-3.5

-0.28x=-3.5 (divide both sides)

Ans:12.5

4 0
3 years ago
the first box measures 18 inches by 8 inches by 15 inches. the second box is 10 inches tall and the area of the base measures 19
Mandarinka [93]

Answer:

  Box 1 has the greater volume, by 200 in³

Step-by-step explanation:

The largest of two volumes can be found by computing each volume and comparing the results.

<h3>Box 1</h3>

The volume is computed from dimensions by ...

  V = LWH

  V = (18 in)(8 in)(15 in) = 2160 in³

__

<h3>Box 2</h3>

The volume is computed from area and height by ...

  V = Bh . . . . . where B is the base area, and h is the height

  V = (196 in²)(10 in) = 1960 in³

__

<h3>Comparison</h3>

The units of the two volumes are the same, so we can decide which is larger by comparing the numbers. Box 1 has a volume that is more than 2000 in³, and Box 2 has a volume that is less than 2000 in³.

  Box 1 has a greater volume

The amount by which the volume is greater can be found by subtracting the smaller volume from the larger:

  2160 in³ -1960 in³ = 200 in³

  Box 1 is larger by 200 in³

_____

<em>Additional comment</em>

The percentage by which Box 1 is larger than Box 2 can be found by multiplying 100% by the ratio of the difference to the Box 1 volume:

  200/1960 × 100% ≈ 10.2%

Box 1 is about 10% larger than Box 2.

3 0
2 years ago
Read 2 more answers
Zach spent 2/3 hour reading on Friday and 1 1/3 hours reading on Saturday. how much more time did he read on Saturday than on Fr
amid [387]
11/3 - 2/3 = 9/3 = 3 so he spent 3 more hours reading on saturday than on friday


Hope this helps!
6 0
3 years ago
How do I solve for the quadratic function?
Basile [38]
Aw you put the numbers in so a b c then you solve
3 0
3 years ago
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