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Artyom0805 [142]
3 years ago
15

Can someone pls explain how to do order of operations

Mathematics
2 answers:
yanalaym [24]3 years ago
7 0

Step-by-step explanation:

1- solve operation in parantheses or brackets.

2- we solve any exponent

3- solve all multiplication and division left to right

harina [27]3 years ago
4 0

Answer:

do you mean PEMDAS?

Step-by-step explanation:

parenthesis, exponents, multiplication, division, addition, and subtraction

you solve in order and go left to right

if you give an equation i can explain it better, but it's basically that

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70 - q -q - 2q = 80 <br> plz help me i don't get it
Montano1993 [528]

Answer:

the answer is:    q = -2.5

Step-by-step explanation:

70 - q - q - 2q = 80

70 - 4q = 80

-4q = 10

q = -2.5

3 0
3 years ago
the measures of the angles of a triangle are 50 degrees, 35 degrees, and 95 degrees. What is the measure of the largest exterior
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Write an equation for 5x + 2 = -4 - 7
kenny6666 [7]

Answer:

x = -2 3/5

Step-by-step explanation:

6 0
4 years ago
The product of two positive integer numbers is 30 and the sum of the same two numbers is 11. Find the
vampirchik [111]

Answer:

5 and 6

Step-by-step explanation:

call them a and b, respectively

we have a*b=30 -> a=30/b

a+b=11 -> b+ 30/b=11

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3 0
3 years ago
A certain restaurant offers 8 different salads, 5 different main courses, 6 different desserts. If customers choose one salad, o
Naddika [18.5K]

Answer: E. 1200

Step-by-step explanation:

Given : A certain restaurant offers 8 different salads, 5 different main courses, 6 different desserts.

i.e. No. of choices for different salads= 8  -----(1)

No. of choices for different main courses = 5  ----(2)

No. of choices for different desserts = 6

When we choose two different desserts then we use permutation(repeatition not allowed) :

^6P_2=\dfrac{6!}{(6-2)!}=\dfrac{6\times5\times4!}{4!}=6\times5=30----(3)

[∵ No. of ways to choose r things out of n =^nP_r=\dfrac{n!}{(n-r)!} ]

If customers choose one salad, one main course and two different desserts for their meal , then By Fundamental principle of counting (Multiply (1) , (2) and (3)), the number of  different meals are possible :-

8\times5\times30\\\\=1200

Hence, the correct answer is E. 1200 .

8 0
3 years ago
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