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3 years ago

-5x-y=12 3x-5y=4 Linear systems by substitution

Mathematics

1 answer:

alukav5142 [94]3 years ago

4 0

You would do 3 times 5 mines 5 which equals 10 and the you would do 5x12

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5!=5*4*3*2*1;6!=6*5*4*3*2*1 What is the value of 4^4/4!

german

Answer:

$\frac{32}{3}$

Step-by-step explanation:

If 5! is equal to 5 × 4 × 3 × 2 × 1 and 6! is equal to 6 × 5 × 4 × 3 × 2 × 1, then 4! is equal to 4 × 3 × 2 × 1. Thus, 4! = 4 × 3 × 2 × 1, which can simplify to 24. 4! = 24.

$4^{4}$ is basically 4 × 4 × 4 × 4, which can simplify to 256.

So, $\frac{4^{4}}{4!}$ = $\frac{256}{24}$ . $\frac{256}{24}$ can simplify to $\frac{32}{3}$ . Therefore, $\frac{4^{4}}{4!}$ = $\frac{32}{3}$ .

3 0

3 years ago

If line ab is parallel to line cd and the slope of line AB = -3/5, what is the slope of CD?

Greeley [361]

Answer:

-3/5

Step-by-step explanation:

Parallel lines have the same slope. If ab has a slope of -3/5 and is parallel to cd, the cd has a slope of -3/5

8 0

3 years ago

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Last month you purchased 6 individual songs and 1 albums for a total of $21.99.

Annette [7]

Answer:

Song =$1.50 Album =$12.99

Step-by-step explanation:

Lets assume Individual songs = x

albums=y

6x + y = 21.99-------- y= 21.99- 6x

4x + 3y= 44.97

Replace y in the second equation

4x+ 3(21.99-6x) = 44.97

4x +65.97- 18x = 44.97

14x= 21

x = 1.50

y= 21.99- (6*1.50)

= 12.99

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3 years ago

Write each percent as a fraction <br> 170%<br> 120%<br> 220%

Likurg_2 [28]

Answer:

Step-by-step explanation:

1.17/10

2.6/5

3.11/5

4 0

4 years ago

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PLS HURRY THIS IS REALLY HARD!(FOR ME)

babunello [35]

Answer:

She needs about 398 more dollars

Step-by-step explanation: The price of the whiteboard is $989. Add the money from what she collected and the fundraising. 485+106 then you take that and subtract it from 989.

Hope this helped!

8 0

3 years ago