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OLga [1]
3 years ago
9

X

Mathematics
1 answer:
Fynjy0 [20]3 years ago
4 0

The total is 219 miles.

He rides at 38 mph and walks at 4 mph for 8 hours. If he rides for h hours, he walks for 8-h hours.

Set them equal to each other:

219=38h+4(8-h)

Solve and you should get 5.5 hours on the bicycle and 2.5 hours walking.

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Z varies directly with q. when z=2,q=1 . <br><br> find a formula connecting z and q<br><br> z=???
Lostsunrise [7]

Answer:

z  =  \frac{q}{2}

Step-by-step explanation:

z \infty q

z = kq

z = 2 \: and \: q = 1

2 = k1

k =  \frac{2}{1}

z =  \frac{1}{2} q

z =  \frac{q}{2}

8 0
3 years ago
Read 2 more answers
The roots of the equation are 3 + 8i and 3 – 8i.
g100num [7]
Given that the roots of the equation x^2-6x+c=0 are 3+8i and 3-8i, the value of c can be obtained as follows;
taking x=3+8i and substituting it in our equation we get:
(3+8i)^2-6(3+8i)+c=0
-55+48i-18-48i+c=0
collecting the like terms we get:
-55-18+48i-48i+c=0
-73+c=0
c=73
the answer is c=73
3 0
3 years ago
Maria can clean the entire house in two hours. Her sister, Sasha, can clean the house in three hours. How long would it take for
lisabon 2012 [21]
Maria do 1/2 work in 1 hour
Sasha do 1/3 work in 1 hour

Thus,
1/2+1/3=5/6 work in 1 hour
5/6 work in = 1 hour
1 work in =6/5=1.2 hours =72 minutes
3 0
3 years ago
Explain how to write the rational number 3.21 in the form a/b.
barxatty [35]

Answer:

3 21/100

just a fraction.

6 0
3 years ago
On a grocery store shelf, there are 16 loaves of white bread and 24 loaves of wheat bread. A shopper randomly selects a loaf of
Oksanka [162]

Answer:

60%

Step-by-step explanation:

16 loaves of white bread and 24 loaves of wheat bread. = 40 loaves of bread

P( wheat) = number of wheat/ total

                 = 24/40

                 =.6

                  =60%

4 0
3 years ago
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