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lana66690 [7]
3 years ago
11

Solve the system of linear equations

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0
This is a special case. If after step two I would've gotten y=something... I would have plugged that new y value into my first equation

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Lisa has $7.80 to spend on some tomatoes and a loaf of bread. Tomatoes
Sunny_sXe [5.5K]

Answer:

Lisa can buy 5 pounds of tomatoes.

Step-by-step explanation:

Given that Lisa has $ 7.80 to spend on some tomatoes and a loaf of bread, and tomatoes cost $ 1.20 per pound, and a loaf of bread costs $ 1.80, to determine how many pounds of tomatoes she can buy, the following calculation must be performed:

1.20X + 1.80 = 7.80

1.20X = 7.80 - 1.80

X = 6 / 1.20

X = 5

So Lisa can buy 5 pounds of tomatoes.

8 0
3 years ago
What is the answer to this problem- <br> (a-3b+5)-(-a+2b+3)
tiny-mole [99]

Answer:

\displaystyle 2 - 5b + 2a

Step-by-step explanation:

To avoid confusion, distribute that negative amongst all terms in the second set of parentheses:

\displaystyle 2a - 5b + 2 = (a - 3b + 5) - (-a + 2b + 3)

** The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

6 0
2 years ago
Weekly wages at a certain factory are
lesantik [10]
The answer should be 2.35
7 0
2 years ago
Y=3x-8 in function notation
julia-pushkina [17]

To write it in function notation you'll convert it into a function, substituting y by f(x):


y = 3x - 8 = f(x) = 3x - 8



Hope it helped,



BioTeacher101

3 0
3 years ago
How can I solve this Inequality ?
musickatia [10]
Add 12 to both sides. 

q-12 > 3
q > 15

ANSWER: q > 15
4 0
3 years ago
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