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2 years ago

Solve the given system using your choice of either graphically or algebraically. Show and explain all work.

Mathematics

2 answers:

serious [3.7K]2 years ago

6 0

there is no solution here. i checked, trust me.

sergey [27]2 years ago

5 0

so who is this about? no persomn no answer my guy and without vontext its ahrd to understand

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please help me with this math problem: Alice has 1/5 as many miniature cars as Sylvester has.Slyvester has 35 miniature cars. Ho

makkiz [27]

1/5= 20%
35×20%= 7. Alice has seven cars

4 0

3 years ago

Need help with stats!

KIM [24]

Answer:

A. a) 24

A. b) 4

B. a) 40320

B. b) 576

Step-by-step explanation:

General formula for Permutations:

$P(n,r) = \frac{n!}{(n - r)!}$

A. Concert seats: 2 couple --- total of 4 persons.

a) without restrictions

Since there are no restrictions, but that the order is important (John, Mary, Paul, Michelle isn't the same as Michelle, Mary, Paul, John), it's a permutation calculation.

Then we calculate the permutations of 4, out of 4, so...

$P(4,4) = \frac{4!}{(4 - 4)!} = 4! = 24$

24 different ways for them to sit.

b) couples together

Now, we can see the problem as having 2 levels of permutations, first the couples, then inside the couples.

There are 2 ways for the first level or order... couples AB or BA, so 2 possibilities.

Inside each couple, man then woman (MW) or woman then man (WM), so 2 possibilities there too on 2nd level.

Overall 2 * 2 = 4 ways to sit by couple.

B) Single file

a) without restrictions

Again, order is important, so another permutation, not a combination. And since we have no restriction, it can be any sequence.

We then have to calculate the number of permutations of 8 out of 8...

$P(8,8) = \frac{8!}{(8 - 8)!} = 8! = 40320$

There are 40,320 ways these 8 kids can pass the door.

b) girls first.

So, the four girls have to enter first.... and these four girls can be in any order.. how many permutations? P(4,4)... so 24 as calculated above.

For the four boys, how many permutations? Yes, again P(4,4)... so 24 again.

Overall, we need to multiply the two... 24 x 24 = 576 ways if the girls enter first, followed by the boys.

8 0

3 years ago

Easton wants to put a variety of donuts in a display case. The case is large enough to hold 100 donuts. Complete the table below

shutvik [7]

The amounts for each donut are given as follows:

Strawberry: 15.

Chocolate: 45.

Sprinkle: 40.

<h3>How to obtain the amounts?</h3>

The amounts for each donut are found applying the proportion, multiplying the decimal equivalent of each percentage by the total number of donuts.

From the problem, the total number of donuts is given as follows:

100 donuts.

The percentages of each type of donuts are given as follows:

Strawberry: 15%.

Chocolate: 45%.

Sprinkle: 40%.

The decimal equivalent of each percentage is given as follows:

Strawberry: 0.15.

Chocolate: 0.45.

Sprinkle: 0.4.

Hence the amounts are given as follows:

Strawberry: 15, as 0.15 x 100 = 15.

Chocolate: 45, as 0.45 x 100 = 45.

Sprinkle: 40, as 0.4 x 100 = 40.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

3 0

1 year ago

NEED ASAP<br><br> 1. Find the distance between (3√3, √11) and (−5√3, 5√11)

VLD [36.1K]

Answer: $\sqrt20$

Step-by-step explanation

7 0

3 years ago

Need help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee<br><br><br>What is (f⋅g)(x)?

Sergio039 [100]

just need to multiply and axpand ?

$( {x}^{2} + 2)( {x}^{3} - 4x + 2) = {x}^{2} ({x}^{3} - 4x + 2) + 2({x}^{3} - 4x + 2) \\ = {x}^{5} - 4 {x}^{3} + 2 {x}^{2} + 2 {x}^{3} - 8x + 4 \\ = {x}^{5} - 2 {x}^{3} + 2 {x}^{2} - 8x + 4$

5 0

3 years ago