Answer:
Step-by-step explanation:
- 50 + (5 / 13)p this says negative 50 plus 5/13 times p
if p = -26 what does this epression evaluate to?
- 50 + (5 / 13) × p p = -26 substitute the value of p into the expression
- 50 + (5 / 13) × (-26)
- 50 + (5 (-26) / 13) I just rewrote the expression to make it clearer
that the -26 in -26/1 and the 5 in 5 / 13 are
both in the numerator over denominator 13
- 50 + (5 (-26) / 13) -26 / 13 evaluates to -2
-50 + (5)(-2)
-50 + (-10)
-50 - 10
-60
Answer:
f(8) = 31
Step-by-step explanation:
To evaluate f(8) substitute x = 8 into f(x)
f(8) = (5 × 8) - 9 = 40 - 9 = 31
Answer:
x = 1
, y = 1
Step-by-step explanation:
Solve the following system:
{2 x + y = 3 | (equation 1)
x = 2 y - 1 | (equation 2)
Express the system in standard form:
{2 x + y = 3 | (equation 1)
x - 2 y = -1 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{2 x + y = 3 | (equation 1)
0 x - (5 y)/2 = (-5)/2 | (equation 2)
Multiply equation 2 by -2/5:
{2 x + y = 3 | (equation 1)
0 x+y = 1 | (equation 2)
Subtract equation 2 from equation 1:
{2 x+0 y = 2 | (equation 1)
0 x+y = 1 | (equation 2)
Divide equation 1 by 2:
{x+0 y = 1 | (equation 1)
0 x+y = 1 | (equation 2)
Collect results:
Answer: {x = 1
, y = 1
Y=−<span>7 should be the answer</span>
yes it's 975% because the 9=900 and 3/4=75
