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Aloiza [94]
3 years ago
6

Solve by using substitution x=3y−2 2x-5y=-22x−5y=−2

Mathematics
1 answer:
lys-0071 [83]3 years ago
8 0

jehbwiwjwnenejsinwjwja

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Jon weighs 148 lbs and hopes to gain 2 lbs a week. Matt weighs 193lbs and hopes to lose 1 lb a week. How many weeks until they w
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It would take 15 weeks and they would meet at 178lbs.
6 0
3 years ago
It is known that 1.4< square root of 2 <1.5. Find all possible values of the expression 2-square root of 2. How do I find
horsena [70]

Answer:

0.5<2-√2<0.6

Step-by-step explanation:

The original inequality states that 1.4<√2<1.5

For the second inequality, you can think of 2-√2 as 2+(-√2).

Because of the "properties of inequalities", we know that when a positive inequality is being turned into a negative, the numbers need to swap and become negative. So, the original inequality becomes -1.5<-√2<-1.4. (Notice how the √2 becomes negative, too). This makes sense because -1.5 is less than -1.4.

Using our new inequality, we can solve the problem. Instead of 2+(-√2), we are going to switch "-√2" with both possibilities of -1.5 and -1.6. For -1.5, we would get 2+(-1.5), or 0.5. For -1.4, we would get 2+(-1.4), or 0.6.

Now, we insert the new numbers into the equation _<2-√2<_. The 0.5 would take the original equation's "1.4" place, and 0.6 would take 1.5's. In the end, you'd get 0.5<2-√2<0.6. All possible values of 2-√2 would be between 0.5 and 0.6.

Hope this helped!

4 0
2 years ago
Find the solutions to the equation below.
taurus [48]

2x²+7x+3=0

2x²+(1+6)x+3=0

2x²+1x+6x+3=0

x(2x+1)+3(2x+1)=0

(2x+1)(x+3)=0

2x+1=0. x+3=0

2x=-1. x=-3

x=-1/2

7 0
3 years ago
Can you solve (+)÷−∙
Eduardwww [97]

Answer:

yes what is the question

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3 years ago
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Tony is installing a new doorway to his back yard. He cuts a hole into his back wall, but it must
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4 0
3 years ago
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