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3 years ago

Inputs are represented by the variable x . True or False

Mathematics

2 answers:

Drupady [299]3 years ago

7 0

I think its true . i could be wrong but im pretty sure

NNADVOKAT [17]3 years ago

4 0

Answer:

true

Step-by-step explanation:

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Using 2 step equations <br> 4 ( 2y - 3 ) = 28

koban [17]

Answer:

y=5

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

So what y’all know about this???

11111nata11111 [884]

Answer:

1.052

Step-by-step explanation:

Add 1 to the percent increase.

1 + 5.2% = 1 + 5.2/100 = 1 + 0.052 = 1.052

Answer: 1.052

4 0

3 years ago

1. A student took 60 minutes to answer a combination of 20 multiple-choice and extended-response questions. She took 2 minutes t

Darina [25.2K]

Answer:

1) m=15 and r =5

2) 4 and 2 ml

3) x= 0.5 and y = -1

Step-by-step explanation:

given that m multiple choice questions and r extended response questions.

Also given that a) m+r = total no of questions =20 ... i and

2m+6r = total time taken = 60 ... ii

b) Divide second equation by 2, m+3r = 30 ... iii

m+r = 20 ... i

Subtract to get 2r =10 or r =5

m = 20-5 = 15

Verify: m+r = 15+5 =20

and 2m+6r = 30+30 = 60 minutes.

Hence verified

--------------------------------------

2) Let a litres of 20% solution and b litres of 50% solution be mixed

a) Then total volume = 6 ml = a+b ... i

Resulting solution = 30% of 6 ml = 1.8 = 0.2a+0.5b ... ii

b) Solve i and ii

b = 6-a: substitute in ii.

0.2a + 3-0.5a = 1.8

Or a = 4 ml and b = 2ml

Verify: Total volume = a+b =6ml and

concentration = 0.2(4)+0.5(2) = 1.8 = 30% of 6 ml.

Thus verified

---------------------------------

3) 2x-3y=4 ...i

2x-5y =6... ii

Because x term has the same coefficient in both the equations, elimination is easier.

i-ii gives 2y =-2 or y =-1

Substitute in i, 2x+3 =4 or x = 0.5

So answer is x = 0.5 and y =1

6 0

3 years ago

Convert into mixed number 81/3 and -29/2

LuckyWell [14K]

Hmmmm to convert from improper to mixed, simply do the division of both, the quotient gets upfront, the remainder as the numerator, for example,

how many times 3 goes into 81? well, 27 times, with a remainder of 0, thus $\bf 27\frac{0}{3}$

how many times does 2 go into 29? well 14 times, with a remainder of 1, thus $\bf -14\frac{1}{2}$

8 0

3 years ago

Read 2 more answers

24 + 8x + 10(2x)<br> Terms:<br> Constants:<br> Coefficients:

Artemon [7]

Terms: 24, 8x, 10(2x)
constants: 24
coefficients: 8, 10, 2

4 0

3 years ago