All categories

3 years ago

Silvia buys 12 steaks that are each 34 of a pound. she spends a total of $90 on steaks. what is the answer

Mathematics

1 answer:

denis23 [38]3 years ago

6 0

Can you tell me what the assignment is about? like what were yall learning a therm or just basics...

You might be interested in

In triangle ABC, the measure of angle B is 44 degrees more than three times the measure of angle A. The measure of angle C is 61

lianna [129]

Answer:

m∠A = 15°; m∠B = 89°; m∠C = 76°

Step-by-step explanation:

The sum of the three interior angles of a triangle is 180°.

Let x = m∠A

Then 3x + 44 = m∠B

and x + 61 = m∠C

x + 3x + 44 + x + 61 = 180

5x + 105 = 180

5x = 75

x = 15

m∠A = 15°

m∠B = 3(15) + 44 = 45 + 44 = 89°

m∠C = 15 + 61 = 76°

Sum = 180°

7 0

3 years ago

Match the information on the left with the appropriate equation on the right.

Slav-nsk [51]

The equation of the line passing the points (-2,3),(-3,4) is y = -x + 1 or x+y = 1

<h3>Equation of a line</h3>

A line is the shortest distance between two points. The equation of a line in slope-intercept form is expressed as;

y = mx + b

m is the slope

b is the y-intercept

Given that m=1, b=-3, the required equation will be y = x - 3 or x - y = 3

For the parameter m=1, (-1,2)

y - 2 =1(x+1)

y - 2 = x+1

y =x + 3

Hence the equation of the line for the parameters m=1, (-1,2) is y = x + 3

For the coordinates (-2,3),(-3,4)

Slope = 4-3/-3+2
Slope = -1

For the intercept;

4 =-1(-3) + b

b = 4 - 3

b = 1

Hence the equation of the line passing the points (-2,3),(-3,4) is y = -x + 1 or x+y = 1

Learn more on equation of a line here: brainly.com/question/18831322

#SPJ1

5 0

2 years ago

If your car gets 35 miles per gallon, how much does it cost to drive 400 miles when gasoline costs $3.30 per gallon?

Arlecino [84]

To solve his equation start by finding how many gallons of gas you need to purchase for the total trip.
Set up an expression that divides the total distance of the trip by the miles received per gallon.
This gives you:
400 / 35

Divide to get 11.43 gallons.

To find the cost of this, multiply the total number of gallons needed to cover the trip by the cost of each gallon.
Set this up in another expression.
This results in:
11.43 x 3.30

Multiply the values to find the total cost.
This leaves you with:
37.72

So, the total cost for gas for a 400 mile trip on 35 miles per gallon is $37.72.

I hope this is correct and helps you! :)

7 0

3 years ago

Find three consecutive EVEN integers such that the sum of the smallest number and twice the middle number is 20 more than the la

nordsb [41]

define the 3 numbers

smallest number = x

middle number = x + 2

largest number = x + 4

write the equation

sum of the smallest number and twice the middle number

$\begin{gathered} x+2(x+2) \\ x+2x+4 \\ 3x+4 \end{gathered}$

20 more than the largest number

$\begin{gathered} x+4+20 \\ x+24 \end{gathered}$

equal the expressions

$\begin{gathered} 3x+4=x+24 \\ 3x-x=24-4 \\ 2x=20 \\ x=\frac{20}{2} \\ x=10 \end{gathered}$

the numbers should be 10, 12 and 14

$\begin{gathered} 10+2\cdot(12)=14+20 \\ 10+24=34 \\ 34=34 \end{gathered}$

5 0

1 year ago

Solve the equation: [3 2 5 5] [x1 x2]+ [1 2]= [2 -3]

dsp73

9514 1404 393

Answer:

(x1, x2) = (3, -4)

Step-by-step explanation:

As with any 2-step linear equation, subtract the constant, then multiply by the inverse of the coefficient of the variable.

$\left[\begin{array}{cc}3&2\\5&5\end{array}\right]\left[\begin{array}{c}x\\y\end{array}\right]+\left[\begin{array}{c}1\\2\end{array}\right]=\left[\begin{array}{c}2\\-3\end{array}\right]\\\\\left[\begin{array}{cc}3&2\\5&5\end{array}\right]\left[\begin{array}{c}x\\y\end{array}\right]=\left[\begin{array}{c}1\\-5\end{array}\right]\\\\\left[\begin{array}{c}x\\y\end{array}\right]=\dfrac{1}{5}\left[\begin{array}{cc}5&-2\\-5&3\end{array}\right]\left[\begin{array}{c}1\\-5\end{array}\right]$

Performing the multiplication of the matrix by the vector gives the solution.

x = ((5)(1) +(-2)(-5))/5 = 15/5 = 3

y = ((-5)(1) +(3)(-5))/5 = -20/5 = -4

Using your variables, x1, x2, the solution is ...

(x1, x2) = (3, -4)

7 0

3 years ago