Answer:
15
Step-by-step explanation:
Answer:
7x^2+15x+31
Step-by-step explanation:
(3x+5)(x+5)
FOIL
3x^2+15x+5x+25
(3x^2+20x+25)+(4x^2-5x+6) = 7x^2+15x+31
Answer:
follow step by step to get answer
Step-by-step explanation:
take 40 and multiply it by 0.08 then add that number to 40 and you get your answer.
V30% mixture + v100% mixture = v60% mixture
0.3(10-x) + x = 0.6(10)
3 - 0.3x + x = 6
0.7x = 6 - 3
0.7x = 3
x = 3/0.7
x = 4.286 quarts
Answer:
B
Step-by-step explanation:
You can see from the sequence 26, 44, 62, 80,.... that each term after the first is 18 larger than the previous term.
<u>The first 4 seconds' distance is given</u>, so
- 5th second distance is 80+18=98
- 6th second distance is 98+18=116
- 7th second distance is 116+18=134
To find total distance for 7 seconds, we add up all the individual distances:
26+44+62+80+98+116+134=560
Answer choice B is right.
