Answer:
Step-by-step explanation:
2x² + 9x = -7
2x² + 9x + 7 = 0
When we multiply we should get 2*7 = 14 and when we add we should get 9. Find the factors of 14 ---> 1,2,7,14. Factors are 2,7 as when we multiply we get 14 and we we add, get 9
2x² + 2x + 7x + 7 = 0
2x( x + 1) + 7 (x + 1) = 0
(x + 1)(2x + 7) = 0
578 bc 2 goes into 578 evenly
I don’t know what the equation is but when using elimination you should cancel out opposite numbers such as 4x and negative 4x
D. it is even
In the example statement, a hypothesis is being made of whether the number is a multiple of 2. The hypothesis is that it is even. And there's your answer.
1) 200 candies
15% of my candies were strawberry candies. I had 30 strawberry candies. How many candies did i have?
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Let "x" be the number of candies.
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Equation:
0.15x = 30
x = 30/0.15
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Multiply numerator and denominator by 100 to get:
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x = 3000/15
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x = 200
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2) 146 STUDENTS
27%*T=54, So T=200.
So 200-54=146 Students passed the test.
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3) She got a 20% discount (or 80% discount). (Work shown for 80%).
First you have to find out how much Mandy paid. So from 15000 you will subtract 3000. 15000-3000=12000.
Next you need to set up your equation. . You then have to cross multiply. So 100 times 12000, 100*12000=1200000. And 15000 times x is 15000x. Finally you divide both sides by 15000. And 1200000 divided by 15000 is 80. X=80
Step-by-step explanation:
