Let the second score = x
⇒ second score = x
<span>the first is 14 points more than the second
</span>⇒ first score = x + 14
<span>the sum of the first two is 6 more than twice the third
</span>⇒ third score = 1/2 (x + x + 14 - 6) = x + 4
<span>The sum of a student's three score is 246
</span>⇒ x + (x + 14) + (x + 4) = 246
<span>
Solve x:
</span>x + x + 14 + x + 4 = 246
3x + 18 = 246
3x = 228
x = 76
second score = x = 76
first score = x + 14 = 76 + 14 = 90
Answer: 90
You can set this up as a system of equations.
x + y = 19
10x + 25y = 3.70
Your answer would be 31.42 dimes and -12.42 quarters.
Subtract 925 from both sides
1578 - 925 = 8x
Simplify 1578 - 925 to 653
653 = 8x
Divide both sides by 8
653/8 = x
Switch sides
<u>x = 653/8</u>
Answer:
The answer is A, -4.
Step-by-step explanation:
For solving the parenthesis, 2/3 + 2 = 8/3, Since 2 is equivalent to 6/3.
-4 + 8/3 = -4/3. n = 1/3, so the equation would be -4/3 divided by 1/3. that would equal to -4.
Answer:
11% interest rate
Step-by-step explanation:
3,300 / 3 = 1,100
$1,100 per year
1,100 / 10000
.11 = 11%
