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
saveliy_v [14]
3 years ago
5

Two years ago a man was six times as old as his daughter. In 18 years he will be twice as old as his daughter. Determine their p

resent ages.
Mathematics
2 answers:
egoroff_w [7]3 years ago
7 0

Answer:

7 and 32

Step-by-step explanation:

Troyanec [42]3 years ago
3 0

Answer:

Step-by-step explanation:

f- 2 = 6(d-2)

f - 2 = 6d - 12

f = 6d - 12 + 2

f = 6d - 10      .................................... eq 1

f + 18 = 2(d+18)

f + 18 = 2d + 36

f= 2d + 36 - 18

f = d + 18       .......................................... eq 2

eq1=eq2

6d - 10 = 2d + 18

6d - 2d = 18 + 10

4d = 28

d = 28/4

d = 7 yrs is the daughter's age

Take eq 1

f = 6(7) - 10

f = 42 - 10

f = 32 yrs is Father's age

You might be interested in
Eight of your friends came to your house to watch a movie. Three-fourths of your friends stayed overnight. How many friends stay
Lapatulllka [165]

Answer:

6 friends

Step-by-step explanation:

8 friends came to watch the movie.

3/4 of them stayed overnight.

The number of people that stayed overnight will be the product of 3/4 by 8:

3/4 * 8 = 24 / 4 = 6

6 friends stayed overnight.

8 0
3 years ago
1/2-1/4<br><br> help?:) uhhhh thankssss
sertanlavr [38]
1/2 - 1/4 = 2/4 - 1/4 = 1/4

I hope this helps!
4 0
3 years ago
A bag contains:
lana [24]

Answer:

35/100

Step-by-step explanation:

P(green or black) = 3/20 + 4/20 = 7/20

7/20 = 35/100

8 0
3 years ago
Read 2 more answers
can you find the cube root of a negative number? if so, is it positive or negative? explain your reasoning
Inga [223]
Yes you can and it is negative because if you think about it, the answer to the 3rd power is your original question, so for example,  -8 would equal to the answer times itself 3 times
now ask yourself, does 2 times itself 3 times = to -8
or -2 times itself 3 times = to -8

8 0
3 years ago
I need to know the answer
Bezzdna [24]
I think the answer is (3,5).
7 0
3 years ago
Read 2 more answers
Other questions:
  • To the nearest hundredth, what is the distance between point (6,-1) and point (4,3)?
    5·2 answers
  • Can someone simplify 25-4-9x+2x ?
    14·2 answers
  • Can anybody help me with questions 6-9?
    11·2 answers
  • An ice cream shop charges $1 for a come and $2 per scoop of ice cream. which. equation models the cost of an ice cream cone , y,
    12·2 answers
  • a battery company manufactures batteries having life spans that are normally distributed, with a mean of 45 months and a standar
    9·2 answers
  • Please, help me I’m so dumb
    9·1 answer
  • Help 7th grade math!
    5·2 answers
  • Olve for x. Check each step or answer that is correct. 34(x + 4) = 14(x + 8) (A) Distribute 34 on the left side of the equation.
    12·1 answer
  • Annual starting salaries for college graduates with degrees in business administration are generally expected to be between and
    5·1 answer
  • PLEASE HELP ME????!!!?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!