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
ICE Princess25 [194]
3 years ago
12

Charlie's weight is nine kilograms greater than his brother's. Together they weigh 99 kilograms. Let x represent the weight of t

he little brother. Which equation can be used to determine what each one weighs?
A) x2 + 9 = 99
B) 2x - 9 = 99
C) 2x + 9 = 99
D) 3x - 9 = 99
Mathematics
1 answer:
spayn [35]3 years ago
4 0
C=x+9, c+x=99, c=99-x

So we have two equations equal to c, c=x+9 and c=99-x, since c=c:

x+9=99-x

2x+9=99

2x=90

x=45, and since c=x+9, c=54

So Charlie weighs 54 kg and his brother weighs 45 kg.
You might be interested in
What is the volume of this?
Oksanka [162]

Answer:

82 in^3

Step-by-step explanation:

3 x 2 x 7      + 2 x 2 x 10    =  82 in^3

7 0
2 years ago
That $3.00 app you wanted is on sale for 32% off. What will it cost now?
Diano4ka-milaya [45]

Answer:

$2.04

Step-by-step explanation:

First, convert 32% in to a decimal.

.32

Then, multiply .32 by $3.

= $2.04

3 0
3 years ago
Read 2 more answers
What is 220 degrees celsius in fahrenheit?
zloy xaker [14]
428 

That is the answer
4 0
3 years ago
Please help with this. Thank you very much.
Harman [31]
Here's a graph with 4 points shown.

4 0
3 years ago
How many meat balls are required for a party of 10 adults and 5 children
ohaa [14]
The formula for this is m = 4a + 2c, where c = number of children; m = number of meatballs; a = number of adults.

m = (4 x 10) + (2 x 5)
simplify,
40 + 10 = 40
The answer to this is 40 meatballs.
3 0
3 years ago
Other questions:
  • if one person walked 1.2miles and the other walked 0.8 miles and they made 120.00 how much money did each one make
    5·1 answer
  • It takes 6 and 1/2 cups of chocolate syrup to make 4 and 1/2 gallons of milk. How many cups of syrup would it take to make 9 gal
    8·1 answer
  • (-6-4) divided by (-5) = ?
    7·1 answer
  • 2.85x10^6 / 30000 i need help with that
    5·1 answer
  • I WILL GIVE BRAINLIEST!!!! Solve the problems. Write the complete proof in your paper homework and for online (only) respond to
    7·2 answers
  • Jeff is 18 years older than Joe, and Jeff is also 2 1/2 times as old as Joe. How old is Joe?
    10·1 answer
  • Multiply. x + 4x + 2 2x2 + 3x – 4​
    14·1 answer
  • Helppp me plz I’ll give u Brainly
    5·2 answers
  • Help!!!!!!!## plssssss​
    13·2 answers
  • Fill in the blanks. # 3, 4, and 5
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!