All categories

3 years ago

Given system 2x-4=5 5x+4y=2 Solve for x and y and SHOW ALL OF YOUR WORK

1 answer:

5 0

I'm solving your system by substitution.
2x-4=5, 5x+4y =2
Step# 1: solve for x
2x - 4+ 4= 5 + 4( add +4 to both sides)
2x = 9
x = 9/2
Step# 2: solve for y

5(9/2) + 4y = 2
4y + 45/2 = 2
4y 45
y = 45/4 = 11.25

You might be interested in

The function f(x) = -x2 - 4x + 5 is shown on the graph. Which statement about the function is true? V 14 2 (-2.9) 10 8+ O The do

ikadub [295]

Answer:

we have

using a graph tool

see the attached figure

the domain of the function is all real numbers------> the interval is (-∞,∞)

the range of the function is --------------------------------> the interval (-∞,9]

therefore

the answer is

The range of the function is all real numbers less than or equal to 9

Step-by-step explanation:

3 0

3 years ago

If 3/4 of a cup of yogurt is 80 calories, how many calories are in 1/4 of a cup?

Lady bird [3.3K]

Answer:

$\boxed{\textsf {One fourth cup of yogurt has 26.66 calories. }}$

Step-by-step explanation:

Given that ¾ of a cup of yogurt is 80 calories and we need to find the calories in ¼ of a cup . So here we can use unitary method to find the calories.

=> ¾ cup of yogurt has 80 calories

=> 1 cup of yogurt has 80 ÷ ¾ calories .

=> ¼ cup of yogurt has 80 × 4/3 × 1/4 calories = 26.66 calories .

<h3>★ Hence ¼ of yogurt has 26.66 calories.</h3>

7 0

3 years ago

3x+ 5 = 11 Use the Subtraction Property of Equality. 3x + 5 - = 11 -

algol13

Answer:

x = 2

Step-by-step explanation:

3 0

3 years ago

The distance on a map between a student's house and her job is 6 cm on the same map the distance between her house and her schoo

Montano1993 [528]

Answer:

9 km

Step-by-step explanation:

First I did 12 divided by 8 to get the amount that each centimeter is worth.

I got 1.5

After that all i had to do was multiply 1.5 by 6 to get 9

8 0

3 years ago

Please someone should help me out

ki77a [65]

Answer:

6cm is the missing length

Step-by-step explanation:

See the 10cm and the 4cm?

If you look at in a way if you added 6 more centimeters to the 4cm it would be 10, leaving 6cm as the missing length.

8 0

3 years ago