1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novosadov [1.4K]
3 years ago
8

R-12 evaluate if r= 7

Mathematics
2 answers:
Irina18 [472]3 years ago
7 0
The answer should be-5
lara [203]3 years ago
4 0

r-12
substitute in r=7
so 7-12 = -5

You might be interested in
Are the solutions correct?
Aloiza [94]

Answer:

First one is wrong. x should be 16.

Second one is not completely visible, so cannot say.

Step-by-step explanation:

In the last step, the divison by 4 yields:

x/16 = 1, so x = 16

4 0
3 years ago
Two bicyclists were racing toward each other when they were 98 miles apart. Three hours later they did not meet yet and the dist
lesya [120]

Let, speed of 1st bicyclist is x.

So, speed of 2nd bicyclist is x-3 .

We know, relative speed when two objects moves towards each other :

v = x + ( x-3 )\\\\v = 2x - 3

Now, distance travelled in 3 hours is (98-2) miles .

So,

2x-3 = \dfrac{96}{3}\\\\2x - 3 = 32\\\\2x = 35\\\\x = 17.5\ mph

Therefore, speed of bikes are 17.5 mph and 14.5 mph.

Hence, this is the required solution.

5 0
3 years ago
Pleaseeee help!!
kkurt [141]

Answer:

answer is A. cosine

Step-by-step explanation:

8 0
2 years ago
Please subscribe to my friends channel <br> channel is called morrison pereira
neonofarm [45]

Answer:

ok

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
2 + 1 . 2 5 f = 1 0 − 2 . 7 5 f
Rom4ik [11]

2+1.25f=10-2.75f      Add the variables

2+4f=10                   isolate the variable

4f=8                          

f=2


7 0
3 years ago
Other questions:
  • PLEASE ANSWER QUICK
    15·1 answer
  • A van can travel 18 miles on each gallon of gasoline. At that rate how many miles can the van travel on 15 gallons of gadoline
    14·2 answers
  • Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each unit rate to the graph that re
    11·1 answer
  • What property comes first in 2(x+4)=6
    6·2 answers
  • The spinner for a board game has eight colors the arrow can land on. What are the degrees of freedom for a goodness-of-fit test
    8·1 answer
  • A hotel charges $225 per night to rent a suite. The hotel charges $75 per day for full room service . If Jessica and Ashley purc
    7·1 answer
  • Type a digit that makes the statement true. 762,78___ is divisible by 6
    14·1 answer
  • What is the greatest common factor of 60, 84 and 126?
    7·1 answer
  • The liquid base of an ice cream has an initial temperature of 86°C before it is placed in a freezer with a constant temperature
    14·2 answers
  • Two sublings are 55 years combined and one sibling is 9 years younger how od is the younger sibing
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!