Answer:
Step-by-step explanation:
If you map the sequence out, you get the following values:
a = 1, a(n) = 2
a = 2, a(n) = -3
a = 3, a(n) = -8
As you can see, the first term is 2 and the sequence is decreasing by 5 each time. Therefore, the answer is D.
I’m going to say pre-algebra because that’s when I learned it in my school system but you may also learn it in algebra as well, College ready math can start in 8th grade math but I would think it would be in highschool.
9514 1404 393
Answer:
about 24.58 m/s
Step-by-step explanation:
Multiply by conversion factors that change the units, but not the value.
(55 mi/h) × (1609 m/mi) × (1 h)/(3600 s) = (55×1609/3600) m/s
= 88495/3600 m/s ≈ 24.58 m/s
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<em>Additional comment</em>
The exact conversion uses 1609.344 meters per mile, so gives exactly 24.5872 m/s.
Answer:
3. 2kg/m 4. 1.524 meters
Step-by-step explanation:
3. 20g/cm to kg/m.
(20g÷1000g)kg ÷ (1cm÷100cm)m
1/50kg ÷ 1/100m
1/50 x 100/1=2kg/m
4. 1nch=2.54cm.
1foot=12inches
5feet= 5x12
=60inches
1inch=2.54cm
60nches=60×2.54
=152.4cm
100cm=1m
152.4cm=152.4÷100
=1.524m
thus 5 feet=1.524meers
Let Mike sold M cars and Bill sold B cars.
Now both sold 640 cars in total, means M + B = 640,
also Mike sold 3 times as many as Bill, means M = 3*B. So our equations became,
M + B = 640, & M = 3*B, put value of M in terms of B.
3*B + B = 640, 4*B = 640,
B = 640/4, B = 160, as M = 3*B, M = 3*160 = 480.
So Mike sold 480 cars & Bill sold 160 cars.
