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hodyreva [135]
3 years ago
11

Solve the system of equations using subtraction. 2x - 4y = - 12 2x + y = 13​

Mathematics
1 answer:
alisha [4.7K]3 years ago
7 0
First can you change
2x + y = -12
To have y as the subject

Looks like y = ???
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Could someone please help
ololo11 [35]
Ok so when you add fractions, the denominators have to be the same, therefore: (whole numbers you can still add)

5(1/2)+5(1/2)= 10(2/2), which equals to 11.

5(1/2) is also 5.5, since 1/2 is 50/100.

5.5 + 5.5 = 11


8 0
4 years ago
Read 2 more answers
Tom and his friend are driving to Tameka is taking the same 432-mile round trip as Tom to Louisville, but renting a car at a spe
timurjin [86]

Answer: The correct answer is $ 134.42 for the gas and the rental.

Step-by-step explanation: The trip is 432 miles and Tameka's car gets 35 miles to the gallon. So we have to figure out how many gallons we would use for the entire trip by dividing 432 by 35= 12.34 gallons of gas.

We know gas is $2.79 a gallon so we multiply 2.79 (cost per gallon) x 12.34 ( our total gallons used) =$34.43 in gasoline.

The rental costs $99.99 so we add that cost and the cost of the gas $34.43= $134.42 the total cost of the rental and the gas.

3 0
4 years ago
Find equivalent fraction with a common denominator and order from least to greatest
nika2105 [10]
The fractions would be in order-
3/10, 1/2, 4/5
Because if you change each fraction to a denominator of 10, the numbers will be 3/10, 5/10, and 8/10
6 0
3 years ago
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Figure 1 is dilated to get Figure 2.
Ierofanga [76]
To find this:
10*____=24
The blank is 2.4, which is the scale factor

7 0
4 years ago
Read 2 more answers
Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp thx in advance :)
alexgriva [62]

Answer:

After multiplying, we get two Pythagorean triples (sorry for not writing it all out, it's a really long process). With those, we can simplify down to 289/100

5 0
3 years ago
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