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Alenkasestr [34]
2 years ago
9

Eric´s mother drives to work in 20 min when driving at her usual speed. When traffic is bad, she drives 10 miles per hour slower

, and the trip takes 10 minutes longer. What is Eric´s mother´s usual speed?
Mathematics
2 answers:
dusya [7]2 years ago
8 0

Answer:

30

Step-by-step explanation:

is this wrong?

tensa zangetsu [6.8K]2 years ago
5 0

Answer:

30

Step-by-step explanation:

I could be wrong

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(64 / 8 + 2 - 10) + (9 x 9 + 19) = 2 points 100 90 99
nordsb [41]

Answer:

Answer is 100

Step-by-step explanation:

(64/8+2-10) + (81+19)

(8+2-10) + (81+19)

(10-10) + (100)

(0) + (100)

0+100

100

7 0
1 year ago
A quarterback throws a football to a teammate. The football is 6.5ft above the ground when it leaves the quarterback's hand. His
sergejj [24]

Answer:

y = - 16t² + 55.6t + 6

Step-by-step explanation:

Using y - y₀ = vt - 1/2gt² where g = 32 ft/s², and v the velocity of the football

So y = y₀ + vt - 1/2 × (32 ft/s²)t²

y = y₀ + vt - 16t² where y₀ = 6.5 ft

y = 6 + vt - 16t²

Now, when t = 3.5 s, that is the time the teammate catches the ball after the quarterback throws it, y = 5 ft. Substituting these into the equation, we have

5 = 6.5 + v(3.5 s) - 16(3.5 s)²

5 = 6.5 + 3.5v - 196

collecting like terms, we have

5 - 6.5 + 196 = 3.5v

194.5 = 3.5v

v = 194.5/3.5 = 55.57 ft/s ≅ 55.6 ft/s

So, substituting v into y, our quadratic model is

y = 6 + 55.6t - 16t²

re-arranging, we have

y = - 16t² + 55.6t + 6

6 0
3 years ago
PLZZZZ HELP SOON
zlopas [31]

Answer:

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Consider the given function and the given interval. f(x) = (x − 4)2, [3, 6]
s2008m [1.1K]

Answer:

f average = 1

smaller value c = 3

larger value c = 5

Step-by-step explanation:

6 0
3 years ago
The table compares the initial amount of fuel Li Jing's car had, and the total distance she traveled using that amount, in sever
AlekseyPX

Answer:

Um so idk the process but yes it can be found :)

Step-by-step explanation:

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3 years ago
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