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prisoha [69]
3 years ago
6

Steps of sloving system of equation steps

Mathematics
1 answer:
MariettaO [177]3 years ago
6 0

Answer:

Step-by-step explanation:

Solve 1 equation for 1 variable. ( Put in y = or x = form)

Substitute this expression into the other equation and solve for the missing variable.

Substitute your answer into the first equation and solve.

Check the solution.

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Answer:

What is the value of x + z? ... length of line segment IK? a. 4 units b. 42 units c. 82 units d.

Step-by-step explanation:

7 0
3 years ago
A coin collection is made up of 34 coins comprised of nickels and dimes. The total value of the collection is $1.90. How many di
riadik2000 [5.3K]

Answer:

x = nickels

y= dimes

x + y = 34

.05x + .10y= $1.90

-.10x - .10y = -3.40

-.05x + .10y = 1.90

-.05x = -1.50

x = 30 nickels

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(3,4)

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3 years ago
Jamal drew a picture.
inessss [21]

area of rectangle = l×b

So, area of drawing = l×b = 8cm×4cm = 32cm²

7 0
3 years ago
Find the value of 7x^2+2x when x=3
frozen [14]

Answer:

69

Step-by-step explanation:

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8 0
3 years ago
Hamburgers cost $2.50 and cheeseburgers cost $3.50 at a snack bar. Ben has sold no more than $30 worth of hamburgers and cheeseb
Irina18 [472]

Given 2.50x + 3.50y < 30.

Where x represent the number of hamburgers and y represent the number of cheeseburgers.

Now question is to find the maximum value of hamburgers Ben could have sold when he has sold 4 cheeseburgers.

So, first step is to plug in y=4 in the given inequality. So,

2.50x+3.50(4)<30

2.50x+14 <30

2.50x<30- 14 Subtracting 14 from each sides.

2.50x< 16

\frac{2.50x}{2.50} Dividing each sides by 2.50.

x<6.4

Now x being number of hamburgers must be an integer , so tha maximum value of x can be 6,

thus x = 6 hamburgers

So, the maximum value of hamburgers Ben could have sold is 6*2.5=$15

Hope this helps!!

8 0
3 years ago
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