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Alborosie
3 years ago
12

Donna has 6 hours to spend training for an upcoming race,she completes her training by running full speed the distance of the ra

ce and walking back the same distance to cool down. If she runs at a speed of 10 mph and walks at a speed of 2 mph, how long should she plan to spend walking back
Mathematics
1 answer:
LekaFEV [45]3 years ago
3 0
I'm sorry but I dont know
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7x+y^3+7x^3+6x-3y^3-2x^3+3x
musickatia [10]

Answer:

5x^3 + 16x - 2y^3

Step-by-step explanation:

7x + y^3 + 7x^3 + 6x - 3y^3 - 2x^3 + 3x

group like terms

= 7x^3 - 2x^3 + 7x + 6x + 3x + y^3 - 3y^3

add similar items

= 5x^3 + 7x + 6x + 3x + y^3 - 3y^3

add similar items

= 5x^3 + 16x + y^3 - 3y^3

add similar items

= 5x^3 + 16x - 2y^3

8 0
2 years ago
How do you solve this problem (5x+10)=(2-7x)
SVETLANKA909090 [29]

Answer:

x=-2/3

Step-by-step explanation:

(5x+10)=(2-7x)

5x+10=2-7x

5x+7x=2-10

12x=-8

x=-8/12

x=-2/3

6 0
2 years ago
The cost of 2 cups of strawberries is $6. Write an equation for the relationship between the cost and cups os strawberries
Rasek [7]

Answer:One equation is x=6/2

Hope this helps

7 0
2 years ago
Read 2 more answers
n a call center the number of received calls in a day can be modeledby a Poisson random variable. We know that, on average, 0.5%
guapka [62]

Answer:Pois(ln(200))

Step-byy-step explanation:

Let N be the number of received calls in a day

That is

N∼Pois(λ).

0.5% = 0.5/100 = 1/200 of no calls

P(N=0)=e^−λ=1/200

-λ=e^(1/200)

λ=in(200)

Our number of calls in a day is distributed Pois(ln(200)).

7 0
3 years ago
Read 2 more answers
Help!!!!????!!!???!!
Anon25 [30]

Answer:  

π/3

Step-by-step explanation:

-5π/3 is a co terminal of 2π-5π/3= (6π-5π)/3=π/3

7 0
3 years ago
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