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3 years ago

An electronics store is having a 25% off sale on all gaming systems. The

Mathematics

1 answer:

kupik [55]3 years ago

5 0

Answer:

x - 0.25x

Step-by-step explanation:

x - 25% of x

x - 0.25x

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At the grocery store, Emily notices that it costs

Dmitriy789 [7]

Answer:

4.34

Step-by-step explanation:

2.48/40=0.062 per ounce

0.062 x 70 = 4.32 for 70 ounces

4 0

3 years ago

What is 12 1/3-10 11/12

Brut [27]

Answer:

1 5/12

Step-by-step explanation:

12 1/3 - 10 11/12

We need to get a common denominator of 12

12 1/3 * 4/4 - 10 11/12

12 4/12 - 10 11/12

We need to borrow from the 12 (the whole number) because the 2nd fraction is bigger than the first

12 becomes 11 and the 1 becomes 12/12

11+ (12/12 + 4/12) - 10 11/12

11 16/12 - 10 11/12

Subtract the whole numbers

11-10 =1

Subtract the fractions

16/12 - 11 /12 = 5 /12

We are left with 1 5/12

5 0

3 years ago

What is another solution of the equation x + y = 7?

White raven [17]

X=3, y=4
x=-2, y=9
Set x equal to anything, then isolate y to get the other number.

5 0

3 years ago

In how many ways can a committee of 5 people be chosen from a total of 30 possible people?

Stolb23 [73]

Answer: 142506

Step-by-step explanation:

Given : The total number of choices for people in committee = 30

The number of people need to be chosen =5

Since , here order doesn't matter, so we use combination.

The combination of r things taking from n at a time is given by :-

$C(n,r)=\dfrac{n!}{(n-r)!r!}$

Now, the number of possible combinations of 5 people be chosen from a total of 30 possible people :-

$C(30,5)=\dfrac{30!}{(30-5)!5!}\\\\=\dfrac{30\times29\times28\times27\times26}{120}\\\\=142506$

Hence, the committee can be made in 142506 ways.

3 0

3 years ago

Determinaţi numerele : a = [1,2,3,4,5] b=[4,9,2,3] aub,anb,aubnb

matrenka [14]

Butttatoe!!!!!!!!!!!!!!!!!!!!!!!!!!!

3 0

3 years ago