Find two numbers, if … b Their sum is −7 and their difference is 14
1 answer:
The numbers are 3.5 and -10.5
Step-by-step explanation:
- Step 1: Sum of two numbers = -7. Let one number be x. Then, the other number = -7 - x. Difference = 14
⇒ x - (-7 - x) = 14
⇒ x + 7 + x = 14
⇒ 2x = 7
∴ x = 7/2 = 3.5
-7 - x = -7 - 3.5 = -10.5
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Step-by-step explanation:
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Numerical expression:
2 * 8 - 4 or 12
Good luck :)
Answer:
x = lillies
y = tulips
x + y = 13
1.25x + .90y = 14.85
-1.25x - 1.25y = -16.25
1.25x + .90y = 14.85
-0.35y = -1.40
y = 4 tulips
x + 4 = 13
x = 9 lillies
(9 lillies, 4 tulips)
Step-by-step explanation:
2/12=1/6
(1/6)×9=9/6=1.5 gallons
