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IrinaK [193]
2 years ago
5

Rick ran for 3/4 hour on Wednesday for a distance of 4.2 miles. On Thursday, he ran for 1 hour at the same speed he ran on Wedne

sday. How many miles did Rick run on Thursday?
Mathematics
1 answer:
Kay [80]2 years ago
6 0

Answer:

Rick ran 5.6 miles on Thursday.

Step-by-step explanation:

Let's first find the speed Rick ran on Wednesday.

D=RT

4.2 = (3/4)R

R = 5.6 mph.

D=RT

D=(5.6 mph)(1)

D=5.6 miles

Let me know if this helps!

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Invested $8200 at the rate of 4.5% p.a. It earned $738 simple interest. The
Igoryamba

Answer:

2 yrs

Step-by-step explanation:

SI =PTR/100

738=8200 x T x 4.5 /100

738 x 100 / 8200 x 4.5 = T

T =2

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How do you find a percent from a decimal?
Alenkinab [10]

To change a decimal into a percent,
move the decimal point 2 places that way  ==> .

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6 0
3 years ago
Read 2 more answers
When a hockey team gets possession of the puck, the following probabilities have been
Natasha_Volkova [10]

Answer: p(a given b) = p(a and b) / p(b)

a is the probability that they score.

b is the probability that they cross the blue line.

p(a and b) is given as .005

this is the probability that they cross the blue line and score.

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Step-by-step explanation:

5 0
3 years ago
Divide:<br> 10mm2-30m<br> 5mn<br> O 2mºn - 6<br> O2mn3 - 6mn?<br> O2mn – 30mn<br> O 5m4n - 25
Evgesh-ka [11]
It’s the second one
4 0
3 years ago
Solve the system by substitution math help. Please show every step.
Arlecino [84]
The idea here is to combine the equations into one in only one variable. The last equation is in only x and z so lets sub out y in the second.

-x - y - z = -8
8 - x - z = y

Substitute y with (8 - x - z) into the next equation.
-4x + 4(8 - x - z) + 5z = 7
-4x + 32 - 4x - 4z + 5z = 7
-8x + 32 + z = 7
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z = 7 + 8x - 32
z = 8x - 25

Substitute z with (8x - 25)
2x + 2(8x - 25) = 4
2x + 16x - 50 = 4
18x = 4 + 50
18x = 54
x = 3

So use x = 3 in that  last equation to find z.

2(3) + 2z = 4
6 + 2z = 4
2z = 4 - 6
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Now, use both x = 3 and z = -1 to find the final variable y.

-3 - y - (-1) = -8
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Solutions x,y,z = ( 3, 6, -1)


5 0
3 years ago
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