Answer:
7 and 1
Step-by-step explanation:
Let the numbers be a and b.
<u>A positive number is 7 times another number:</u>
<u>If 3 is added to both the numbers then one of the new number becomes 5 by 2 times the other new number:</u>
<u>To solve this we substitute </u><u>a</u><u> with </u><u>7b</u><u> in the second equation:</u>
- 7b + 3 = 5/2 × (b +3) ⇒ multiplying both sides by 2
- 14b + 6 = 5b + 15 ⇒ collecting like terms
- 14b - 5b = 15 - 6
- 9b = 9
- b = 1 ⇒ solved for b
<u>Then, finding a:</u>
- a= 7b
- a=7*1
- a= 7 ⇒ solved for a
<u>So the numbers are</u> 7 and 1
The correct answer is 21.2.
Answer:
the answer is 3/4 b.s it's greatest
Answer: Srry if I'm wrong 252
Step-by-step explanation:
10 x 6= 60
8 x 12= 96
8 x 12= 96
10 x 11= 110
60 + 96 + 96 +110= 252.
Also I use the same platform for my school
<span> 3/8 = 0.37500
hope its right...!!!!!</span>
