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3 years ago

Solve this system using elimination. 3x+4y=5 2x+3y=4 Show work please

1 answer:

5 0

3x+4y=5
2x+3y=

-2(3x+4y)=5(-2)
3(2x+3y)=4(3)

-6x-8y=(-10)
6x+9y=12

Add the equations

-6x-8y=(-10)
+ 6x+9y=12
-----------------
0x+y=2
y=2

Substitue y into an equation

6x+9(2)=12
6x+18=12
6x=-6
x = -1
y = 2

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Refer to the equation 3x − 2y = 12.

-Dominant- [34]

Answer: don't know sorry what kind if grade is this

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4 0

2 years ago

If f(x) = g(x), then what does 7x - 12 = -3x + 10?

Bumek [7]

Answer:

x = 2.2

Step-by-step explanation:

Comment

f(x) = g(x) I don't think has any meaning for this question. I will just solve the equation.

Solution

7x - 12 = - 3x + 10 Add 3x to both sides

7x + 3x -12 = - 3x + 3x +10 Combine

10x - 12 = 10 Add 12 to both sides

10x -12 + 12 = 10 + 12 Combine

10x = 22 Divide by 10

10x/10 = 22/10

x = 2.2

3 0

1 year ago

Evaluate the following expression when x = -5 and y = 25. A. -3,130 B. 620 C. 3,120 D. -630

lys-0071 [83]

Answer: question not complete

Step-by-step explanation: add the expression

6 0

3 years ago

Evaluate the expression when c = -6 And y = 7<br><br> y - 9c

GrogVix [38]

The answer is 61. hope that help.

5 0

3 years ago

Read 2 more answers

In Lixue’s garden, the green pepper plants grew 5 inches in 34 month. At this rate, how many feet can they grow in one month? (L

beks73 [17]

Answer:

<h2>0.15 inches per month</h2>

Step-by-step explanation:

step one:

This problem is focused on the growth rate of a plant.

given data

the plants grow 5 inches in 34 months

and also that 1 month= 4 weeks

step two:

We can still say that

if 34 months see a growth of 5 inches

then 1 months will be X inches

cross multiply we have

X= 5/32 inches

step three:

converting this number to decimal we have

X= 0.15 inches per month

Therefore the growth rate would be

0.15 inches per month

5 0

3 years ago