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Reil [10]
3 years ago
6

Solve the following system of equations. 2x + y = 3 x = 2y - 1 Make sure there are NO SPACES in your answer. Include a comma in

your answer.
Mathematics
1 answer:
Natalka [10]3 years ago
8 0
2x + y = 3
x = 2y - 1

solve for y in the first equation;
2x + y = 3
y = 3 - 2x 

x = 2y - 1
x = 2(3 - 2x) - 1
x = -4x + 5

solve for x;
x = -4x + 5
x + 4x = 5
5x = 5
x = 1

solve for y;
y = 3 - 2x
y = 3 - 2(1)
y = 1

the answer is: x = 1, y = 1

hope this helps, God bless! 
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edgar purchased three cheeseburgers for 5.75 fiona purchased five cheeseburgers for 7.50 who paid less
d1i1m1o1n [39]

Answer:

edgar

Step-by-step explanation:

edgar - 5.75 times 3 = 17.25

fiona - 7.50 times 5 = 37.50

edgar payed least since he has the smallest value

7 0
2 years ago
2. If (300) (30,000) = 9 x 10m, then m =
Rufina [12.5K]
(300) (30,000) = 9 x 10m
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6 0
2 years ago
A Triangle
postnew [5]

Answer:

58 cm

Step-by-step explanation:

if both shapes are squares, then the perimeter must be divide by all 4 equal sides

36 / 4 = 9, so each side of the first shape is 9 cm

40 / 4 =10 , so each side of the second shape is 10 cm

by putting the shapes together two of the side seal 1 side of each shape but 10-9 is 1 so add all three sides of the rest of the shape,

so 9+ 9+ 9= 27, then the three side of the second shape,

so 10+ 10+ 10= 30, then that extra 1 cm of difference from the size difference when put together,

so 27+ 30+ 1= 58 cm

6 0
2 years ago
The smiths bought an apartment for $75,000. assuming that the value of the apartment will appreciate at most 4% a year, how many
DedPeter [7]

Answer:

1st year is $75,000 * 0.04 = $3,000 $75,000+$3,000=$78,000

Step-by-step explanation:

6 0
3 years ago
what is the volume of a box with the height of 3/2 inches and a length of 7/2 inches and a width of 5/2 inches
nadezda [96]

Answer:

13.125 in³

Step-by-step explanation:

So first convert all the numbers to decimal form. 3/2 converts to 1.5. 7/2 converts to 3.5. 5/2 converts to 2.5.

Now for the actual math. Take 1.5×3.5=5.25. Then take your new number and multiply it by 2.5. 5.25×2.5=13.125.

8 0
2 years ago
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