Y=2x-1 the order pair is

Answers

Answer 1

Answer:
There are an infinite number of possibilities,
and you didn't give us any choices.

Here are a few:

(-3, -7)
(-2, -5)
(-1, -3)
(0, -1)
(1, 1)
(2, 3)
(3, 5)
(4, 7)
(5, 9)
(1.647, 2.294)

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Mustafa buys seed packets for a community garden. One packet of basil seeds costs $1.50. One packet of squash seeds costs $2.50. Let b represent the number of packets of basil seed. Let s represent the number of packets of squash seeds. Mustafa spent $38 on 18 packets of seeds. How many packets of each type of seeds did Mustafa buy?

Answers

There are total 11 packets of squash seeds and 7 packets of basil seeds.

What is system of linear equations?

A system of linear equations (or linear system) is a collection of one or more linear equations involving the same variables.

What is substitution method?

The substitution method is the algebraic method to solve simultaneous linear equations. In this method, the value of one variable from one equation is substituted in the other equation.

According to the given question.

Cost of one packet of basil seeds = $1.50

Cost of one packet of squash seeds = $2.50

Cost of 18 packets of seeds = 38

Also, b represents the number of packets of basil seeds and s represents of numbers of squash seeds.

Therefore, from the given conditions we get some system of equations

$s + b = 18..(i)$

and $b(1.50) + s(2.50) = 38...(ii)$

From equation (i)

$s = 18-b$

Substitute the value of s in the equation (ii)

⇒ $1.50b+(18-b)2.50 =38$

⇒ $1.50b + 45 - 2.50b = 38$

⇒ $-b = 38-45$

⇒ $-1b =- 7$

⇒ $b = 7$

So, $s = 18 - 7 =11$

Hence, there are total 11 packets of squash seeds and 7 packets of basil seeds.

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Answer:

Step-by-step explanation:

b+s=18

s=18-b

1.50 b+2.50 s=38

multiply by 4

6.00 b+10.00 s=152

divide by 2

3 b+5 s=76

3 b+5(18-b)=76

3 b+90-5 b=76

-2b=76-90

-2b=-14

divide by -2

b=7

s=18-7=11

A plumber charges $50 to visit a house plus $40 for every hour of work. Define a variable and write an expression to represent the total cost of hiring a plumber

Answers

The expression for the total cost of hiring a plumber will be equal to $50 + $40(h).

What is an expression?

Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.

As per the given statement in the question,

The charge for a plumber to visit the house = $50

The additional charge per hour = $40

The expression for t hours will be,

A = $50 + $40(h),

Here, A is the total amount and h is the number of hours the plumber is working.

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x = # of hours worked

Total cost = 40x + 50

What expression has the value of 0.032 ?A. 3.2 ×10²
B. 3.2 ×10²
C. 3.2 ×10³
D. 3.2 ×10³

Answers

$0.\underbrace{03}_(2\to)2=3.2\cdot10^(-2)$

3.2 / 100 = 0.032 so I don't think there are any correct answers in there
It could also be 3.2 x 0.01
Happy to Help!

$10 + ($6-n) if n =$3
What is the final product
Of this mathematical question?

Answers

If n = $3 then plug it in
$10 + ($6-$3)
$6-$3 = $3
$10 + $3 = $13

$10+($6-$3)=
$10+$3=$13

How would I write these problems?

Answers

21) Total number of cups: 26

6) Solution of the equation: x = -12

7) Father's age: 40

4) Distance driven: 400 miles

Step-by-step explanation:

21)

Let's call:

$h=10 cm$ the height of each cup

$H=30 cm$ the total height available in the dispenser

We are told that each cup added to the stack add a height of

$\Delta h = 0.8 cm$

We can therefore solve the problem by writing the following equation:

$H=h+N\Delta h$

which means that the total height available (H) is filled by the height of one cup (h) + the number of additional cup multiplied by 0.8.

Solving for N:

$N=(H-h)/(\Delta h)=(30-10)/(0.8)=25$

And including the first cup, the total number of cups is

$N+1=25+1=26$

The equation that we have to solve is

$(5)/(2)x-1=-31$

We proceed as follows:

First of all, we add +1 on both sides of the equation,

$(5)/(2)x-1+1=-31+1\n(5)/(2)x=-30$

Now we multiply by 2 on both sides:

$(5)/(2)x\cdot 2=-30\cdot 2\n5x=-60$

And now we divide both sides by 5:

$(5x)/(5)=(-60)/(5)\nx=-12$

Let's call:

k = Karma's age

f = father's age

We are told that Karma is 13 years old, so

k = 13

Also, Karma's age is 2 years less than 3/8 of the father's age, so we can write

$k=(3)/(8)f-2$

By combining the two equations,

$13=(3)/(8)f-2$

And solving for f, we find:

$(3)/(8)f=13+2\n(3)/(8)f=15\n3f=15\cdot 8 =120\nf=(120)/(3)=40$

So, the father's age is 40.

Let's call:

T = 16 the total volume of the tank (16 gallons)

We also know that the car burns 0.03 gallons per mile, so the amount of fuel consumed after x miles is

$0.03 x$

This means that the amount of fuel left after x miles is

$16-0.03x$

We also know that the amount of fuel left is 4 gallons, therefore:

$16-0.03x=4\n0.03x=16-4\n0.03x=12\nx=(12)/(0.03)=400$

So, 400 miles.

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$7.50 admission; 20% off; 5.75% tax

Answers

$45.05 i did the work but i am on my laptop so i cant show you sorry

Answer:

45.05

Step-by-step explanation:

hope this works haha

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