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3 years ago

2 jars of spaghetti sauce $3 What is the constant poportion of this problem

Mathematics

2 answers:

fredd [130]3 years ago

7 0

1 sauce= 1.50$ okkokokokokooaxkoofkq

Murljashka [212]3 years ago

5 0

Answer:

The constant proportion would be 1.50 for 1

Step-by-step explanation:

3/2=1.5

1.5*2=3

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Find the value of B - A if the graph of Ax + By = 3 passes through the point (-7, 2), and is parallel to the graph x + 3y = -5.

Elena-2011 [213]

Answer:

$B - A = -6$

Step-by-step explanation:

Given

Point: (-7,2)

x + 3y = -5

Required

Find B- - A in Ax + By = 3

To start with; we need to calculate the slope of x + 3y = -5

$x + 3y = -5$

Subtract x from both sides

$x - x + 3y = -5 - x$

$3y = -5 - x$

Divide both sides by 3

$\frac{3y}{3} = -\frac{5}{3} - \frac{x}{3}$

$y = -\frac{5}{3} - \frac{x}{3}$

The slope of the line is the coefficient of x

Slope = $- \frac{1}{3}$

The question says line Ax + By = 3 is parallel to line x + 3y = -5; This means that they have the same slope of $- \frac{1}{3}$

Having calculated the slope, next is to calculate the equation of the line using the following formula;

$m = \frac{y - y_1}{x - x_1}$

Where m is the slope; m = $- \frac{1}{3}$ ; $(x_1, y_1) = (-7,2)$

Substitute these values in the formula above; the formula becomes

$-\frac{1}{3} = \frac{y - 2}{x - -7}$

$-\frac{1}{3} = \frac{y - 2}{x +7}$

Cross Multiply

$-1(x+7) = 3(y-2)$

Open brackets

$-x - 7 = 3y - 6$

Add x to both sides

$x - x - 7 = 3y - 6 + x$

$-7 = 3y - 6 +x$

Add 6 to both sides

$-7 + 6 = 3y -6 + 6 + x$

$-1 = 3y + x$

Multipby both sides by -3

$-3(-1) = -3(3y + x)$

$3 = -9y - 3x$

$-9y - 3x = 3$

$-3x - 9y = 3$

Comparing the above to Ax + By = 3

$Ax = -3x\\A = -3$

$By = -9y\\B = -9$

$B - A = -9 - (-3)$

$B - A = -9 + 3$

$B - A = -6$

3 0

3 years ago

Kurt earns $7 per hour for doing chores. his goal is to make at least $35 each week

Yuri [45]

Answer:

Step-by-step explanation:

This is what i get what i understand from your question .

Kurt earns $7 per hour for doing chores. his goal is to make at least $35 each week

So ,

$7 =per hr

X= unknown hrs

$35= goal

7 x =35

Divide both sides by 7 to get x alone representing hrs.

X= 35/7

X= 5

So 5 hrs per week to make 35 a week.

5×7=35

35=35

5 0

2 years ago

Choose which set or sets the following number belongs to. Be sure to account for ALL sets.

Lelechka [254]

The sets to which the number -√3 belongs are:

D: Rational numbers.

E: Real numbers.

<h3>To which sets the number belong?</h3>

Here we have the number:

-√3

Notice that 3 is a prime number, and the square root of 3 is then an irrational number.

If it is an irrational number, it also is a real number (Remember that the real set contains all the numbers that are either rational or irrational). And because it has a negative sign, it is a negative number.

Then the correct options are:

D: Rational numbers.

E: Real numbers.

Concluding, the sets to which the number -√3 belongs are:

D: Rational numbers.

E: Real numbers.

If you want to learn more about irrational numbers:

brainly.com/question/20400557

#SPJ1

3 0

1 year ago

In inches, what is the perimeter of a rectangle with a width of 4 inches and length of 10 inches?

NARA [144]

The perimeter is the distance around the object so you add 4+10+4+10 to get
28 inches as the perimeter of the rectangle

8 0

3 years ago

Read 2 more answers

Solve for each of the following proportions:<br> a. 5/x=30/42<br> b. x/8=-12/32

andreev551 [17]

Answer:

A. x = 7

B. x = -3

Step-by-step explanation:

A. 5/x = 30/42

5/x = 5/7

5 = 5/7 x

5= 5x/7

5 x 7 = 5x

35 = 5x

35/5 = x

7 = x

x = 7

B. x/8 = -12/32

x/8 = -3/8

x = - 3/8 x 8

x = - 24/8

x = -3

Hope this helps you have a gr8 day :3

5 0

3 years ago