Recall d = rt, distance = rate * time.

$\bf d=rt\qquad 
\begin{cases}
r=\stackrel{mph}{35}\\
t=\stackrel{hours}{r+2}
\end{cases}\implies d=35(r+2)\implies d=35r+70$

3 0

4 years ago

What is 9*9+5\6+6+6/7-7-8+7*5+6*4*4+6

Lesechka [4]

203.03968253968254
that is the answer

6 0

3 years ago

Read 2 more answers

What is the next term for the given arithmetic sequence? -3, -2.25, -1.5, -0.75, ...

KATRIN_1 [288]

The common difference is 0.75. Therefore the next term in the sequence is:
-0.75 + (0.75) = 0.

6 0

3 years ago

The cost of an electrical gadget and the cost of a plumbing material were in the ratio 8:6 last year, this year each cost was re

Romashka-Z-Leto [24]

Answer

p/q = 8/6

Make p the subject

p = 8q/6........equation 1

This year the price was reduced by 4

p-4/q-4 = 7/5

Cross multiple

5(p-4) = 7(q-4)

5p-20 = 7q-28

5p - 7q = -8 .......equation 2

Sub 8q/6 for p in equation 1

5(8q/6) - 7q = -8

Multiply through by 6

40q-42q=-48

-2q=-48

q=24

Sub 24 for q in equation 1

p= 8(24)/6

p= 192/6

p= 32.....

Check the answer for confirmation.

Thanks.

3 0

3 years ago