Answer: You need a grade of 78 on the final exam to earn a final grade average of at least 87 in each grading system.
Step-by-step explanation:
(85 + 90 + 95 + x)÷ 4 =87
Simplify:
(270 + x) ÷ 4 = 87
Rearrange:
(x + 270) ÷ 4 = 87
Multiply terms to Reduce:
4((x + 270) ÷ 4) = 4 * 87
Cancel Multiplied terms in Denominator:
x + 270 = 4 * 87
Multiply:
x + 270 = 348
Subtract 270 on both sides of the equation:
x + 270 - 270 = 348 - 270
Simplify:
x = 78
-12 + 4 3/5 = -7.4 <--- decimal.
-6 2/7 + 3 1/14 = 3 3/14 <--- repeating decimal.
-2 2/3 + -3 3/4 = -6 5/12 <--- repeating decimal.
°.✩┈┈┈┈∘*┈┈୨♡୧┈┈*∘┈┈┈┈✩.°
I hope this helps you. It kind of helps me because, I wanna scream and cry and just stay in one room. So imma go outside and sit down.. and walk back to my room and scream into a pillow (っ◞‸◟c)
Answer:
No
Step-by-step explanation:
The car starts at 20 000
After 1 year, it's worth 18 000
After 2 years, it's worth 14 400
After 3 years, it's worth 11 600
After 4 years, it's worth 9 280
After 5 years, it's worth 7 424
After 6 years, it's worth 5 975.20
No, the family should not sell the car for 4000
Answer:3600 Step-by-step explanation:
Answer:
Matt should have factored out the leading coefficient 2 on the second step before completing the square
Step-by-step explanation:
To complete the square, you must first factor the leading coefficient from the first two terms.
y = 2x² − 10x − 4
y = 2 (x² − 5x) − 4
y = 2 (x² − 5x + 25/4 − 25/4) − 4
y = 2 (x² − 5x + 25/4) − 25/2 − 4
y = 2 (x − 5/2)² − 33/4
