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 1 - 1/6 * 3/2 =
kolezko [41]

1-1/6*3/2

multiply the two fractions

1/6*3/2

Cross out 3 and 6, divide by 3.

1/2 * 1/2

multiply the numerators together

1*1=1

multiply the denominators together

2*2=4

1-1/4

pretend that 1 has a denominator which is 1

1/1-1/4

find the common denominator for 1/1 which is 4

multiply by 4 for 1/1

1*4/1*4=4/4

4/4-1/4

Answer:

3/4

4 0
3 years ago
Will choose brainliest... Figure out the combination...
Finger [1]

Answer:

Its THIS ↓↓↓↓

Step-by-step explanation:

if its not this then i dk what

4 0
3 years ago
Read 2 more answers
Find the slope of the line passing through the point (-3, 6) and the origin.<br> M=
Nuetrik [128]
You know b=0 because it is passing through the orgin (0,0) and b is the y intercept. You input (-3,6) as (x,y)

7 0
3 years ago
Rectangle area w algebra<br> step by step explanation please :)
Natalija [7]

We know that the area is 20.

Since 20 is a small number: lets list out possible combinations of lengths and widths.

1 * 20

2 * 10

4 * 5

L = 7 + 3w

lets see which on makes sense.

L = 7 + 3w

20 = w7 + 3w^2

3w^2 + 7w -20 = 0

(3w - 10)(w - 2)

w can equal 10/3 or 2.

So the dimensions: are Width = 2 Length = 10

8 0
3 years ago
Please help fast HELP
Sveta_85 [38]

Answer:

The letters are really small I can't see it.

Step-by-step explanation:

Sorry

5 0
3 years ago
Other questions:
  • An athlete buys a baseball bat and pays a fee for each baseball lesson taken. The fee for each lesson is the same. The number of
    7·1 answer
  • What is the answer to 40=-6t-8 ?
    5·2 answers
  • A ratio of equivalent values used to express the same quantity in different units
    9·2 answers
  • Three girls search for geodes in the desert. corinne collected 11 1/8 pounds, ellen collected 4 5/8 pounds, and leonda collected
    6·1 answer
  • You go to the grocery store and find that bread is $4.99 for one loaf or two loaves for $6.50. How much would you save by buying
    9·1 answer
  • Solve the inequality for x
    11·2 answers
  • Machines a and t were both cleaned this week machine a is cleaned every 15 weeks and machine t is cleaned every 12 weeks what is
    5·1 answer
  • The speed limit in a particular neighborhood is 35 miles per hour. Which inequality BEST represents the speed s a person can dri
    13·1 answer
  • What is one of the best methods to multiply these binomials: (x+8)(x+7)
    12·2 answers
  • Find the value of x.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!