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
love history [14]
2 years ago
9

Can someone help me do this problem and explain it to me step by step? If so I’ll mark you brainliest

Mathematics
1 answer:
Advocard [28]2 years ago
7 0

Answer:

-21

28

Step-by-step explanation:

1) if r = -4

Substitute r = -4 in 3r - 9

= 3 * (-4) - 9

= -12 - 9

= -21

2) ( 4 / 7 ) * x = 16

 4 * x = 16 * 7

 x = 4 * 7

 x = 28

You might be interested in
You have purchased 10 large pizzas in order to prepare for a party that will
Anuta_ua [19.1K]

Answer:

s(x) = 10/x

Step-by-step explanation:

There are x number of people. When you divide an amount by x, you get

amount/x

Here, the amount is 10 since you bought 10 pizzas, so each person gets

10 divided by x.

s(x) = 10/x

6 0
2 years ago
It takes 1 yard 2 feet of material to make a pillow. How much material is required to make 8 pillows?
Monica [59]

40 feet or 13 yards and 1 foot

using the conversion

1 yard = 3 feet then 1 yard 2 feet = 5 feet ← material for 1 pillow, hence

8 pillows require 8 × 5 = 40 feet



7 0
3 years ago
4.5m + 8 - 2.3m - 3.5
anastassius [24]

Answer:

494235234934-1304039445

Step-by-step explanation:

4r567890e-r0987ytdghcn

6 0
3 years ago
Help me with number 1 I don't get it
IgorLugansk [536]
The answer will be 250 because you divide 2 by 500
8 0
3 years ago
Read 2 more answers
A local shelter is having an Adopt-a-thon for kittens and puppies. Kittens cost $50 to adopt and puppies are $75. The shelter ma
Solnce55 [7]

Answer:

Step-by-step explanation:

P=2K

50K+75P=1200, using P from above makes this equation become

50K+75(2K)=1200

50K+150K=1200

200K=1200

K=6, since P=2K

P=2(6)=12

So 12 puppies and 6 kittens were adopted.

5 0
3 years ago
Other questions:
  • The sum of three numbers is 19. The third number is eleven less than five times the second number. If the first number is quadru
    5·1 answer
  • 65 divided by 5,918 plz show work
    9·1 answer
  • Which power of 2 is equal to this expression: (2•2•2)-2
    12·2 answers
  • Is this a function? Yes or No?
    8·2 answers
  • 4,8,15,30,___________,74,81
    8·2 answers
  • Just need the answers to see if im right lol
    12·1 answer
  • Please help me i need help lol
    15·1 answer
  • HALP ME PLZZ ASAP NO LINKS
    12·1 answer
  • -233+23x&gt;=-3+40(x-10)<br><br><br>Awnser:<br><br><br><br>Explanation:​
    6·1 answer
  • 15. Robin ordered pizza and opted for delivery.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!