All categories

3 years ago

X + y = 26 3x + y = 56 Please help me! Show Working Please

Mathematics

2 answers:

Marina CMI [18]3 years ago

8 0

Step-by-step explanation:

(X + y = 26) (-3)

3x + y = 56

____________

- 3 x - 3y = - 78 Note:cross 3x and-3x from both equations (they're opposite)

3x +y =56

____________

-3y +y = - 78 +56

-2y = - 22

$y = \frac{ - 22}{ - 2} = 11$

____________

So we replace y in eq 2: (to obtain x)

3x + 11 =56

3x =45

X =15

melomori [17]3 years ago

4 0

Answer:

x = 15

y = 11

Step-by-step explanation:

15+11=26

(3*15)+11=56

You might be interested in

A right triangle has side lengths 12 centimeters and 14 centimeters. Name two possible side lengths for the third side, and expl

madam [21]

Answer:

If 12 and 14 are both side lengths then we solve for the hypotenuse:

hypotenuse^2 = 12^2 + 14^2

hypotenuse^2 = 144 + 196

hypotenuse^2 = 340

hypotenuse = sq root (340) = 18.4390889146

If hypotenuse = 14, then third side equals:

(3rd side)^2 = 14^2 - 12^2

(3rd side)^2 = 196 -144

(3rd side)^2 = 52

3rd side = sq root (52) = 7.2111025509

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Ralph Chase plans to sell a piece of property for $150000. He wants the money to be paid off in two ways a - short-term note a

Artyom0805 [142]

Answer:

Amount on 11% note = $106,666.67

Amount on 8% note = $43,333.33

Step-by-step explanation:

Let the amount for the short-term note at 11% interest be x.

Thus, the amount for the short-term note at 8% interest will be (150000 - x)

Now we are told that the total interest paid is $15,200.

Thus;

0.11x + 0.08(150000 - x) = 15200

0.11x + 12000 - 0.08x = 15200

Rearranging gives;

0.03x = 15200 - 12000

0.03x = 3200

x = 3200/0.03

x = $106666.67

Thus, amount for 8% note = $150000 - $106666.67 = $43,333.33

5 0

2 years ago

Clyde rents a tuxedo for several days. Let d represent the number of additional days Clyde uses the tuxedo. Write an algebraic e

yaroslaw [1]

Answer:

Total cost = f + ad

Step-by-step explanation:

Given:

Number of days = d

Fixed charges = f

Cost per day = a

Find:

Equation

Computation:

Total cost = fixed cost + (Number of days)(Cost per day)

Total cost = f + ad

3 0

2 years ago

A regression equation is determined that describes the relationship between average January temperature (degrees Fahrenheit) and

Musya8 [376]

Answer:

Decreases by 2 degrees

Step-by-step explanation:

The expression that describes temperature as a function of latitude is:

$T=110-2(Latitude)$

This equation represents a linear relationship between latitude and temperature in a way that an increase in latitude causes a decrease in temperature. The magnitude of this decrease is quantified by the slope of the linear equation, which is -2. Therefore, the estimated temperature decreases by 2 degrees when latitude is increased by one.

8 0

2 years ago

Plz help no link thank you

pochemuha

Answer:

x = 79

Step-by-step explanation:

This is an isosecles triangle so the bottom angles have equal measure

and since the sum of interior angles in a triangle is equal to 180

2x + 32 = 180 subtract 32 from both sides

2x = 158 divide both sides by 2

x = 79

7 0

2 years ago