answer.
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
Evgesh-ka [11]
1 year ago
11

Emma is 10 years old. she asked her father how old he is. her father answered, "when you are my age I will be 70." how old is Em

ma's father.
Mathematics
2 answers:
umka2103 [35]1 year ago
8 0

Answer:

40

Step-by-step explanation:

Emma age: yE = 10 + x   (x is timeline)

Father age: yF = A + x (x is timeline, A is Father age today)

in time x1: Emma will be A years old, and Father will be 70 years old.

yE (x1) = 10 + x1 = A

yF (x1) = A + x1 = 70

System of equations with unknown values: x1 and A.

substract equation 1 - equation 2:

10 - A = A - 70 ⇒ 80 = 2A ⇒ A = 40

So, father is 40 years old now

melamori03 [73]1 year ago
8 0

Answer: emmas father is 40 years old

Step-by-step explanation:

You might be interested in
A hotel has 56 guests 35 of them are male work out 35 out of 56 as a percentage
Daniel [21]
%62.5 you divide the amount of males with the total amount of guests then you will get 0.625 so you put the comma two places behind and add a percentage.
6 0
1 year ago
Read 2 more answers
A fishing boat lies 200 m due south of a large tree on the shoreline and 300 m southwest of the dock . the shoreline runs east t
Rudik [331]
223.61 Meters???? Don't quote me
5 0
2 years ago
Read 2 more answers
A customer purchased a total of 16 washcloths and towels. Each washcloth cost $10.50 and each towel cost $15.00. The customer sp
IgorC [24]

Answer:

3

Step-by-step explanation:

10.50 x 3 = 31.5

15 x 13 = 195

195 + 31.5 = 226.50

8 0
1 year ago
The range for the Kentucky temperature is ____
natka813 [3]

Answer:

1) 6.1

2)5.1

3)2.8

4)2.4

5)I don't know what the last one is asking for, are there answer choices

Step-by-step explanation:

1)Max-min=58.3-52.2=6.1

2)Max-min=55-48.9=5.1

3)Upper quartile- lower quartile= 57.3-54.5=2.8

4)Upper quartile- lower quartile= 53.3-50.9=2.4

5) I don't know what this one is asking

6 0
1 year ago
Read 2 more answers
Jana is prescribed 250 mg of medication. Seventy-five percent of the medication remains in her body after each hour, h, accordin
SOVA2 [1]
Jana was prescribed medication. m = 250(0.75)^h

6 hours after Jana took her medication, Allison was prescribed the same.
m=250(0.75)^(h-6)

<span>At any time after she has taken the medication, Allison has how many times more milligrams of medication in her body?
</span>
Same with Jana, Allison's medication content in her body will decrease by 25% after each hour. 

Let h = 6

Jana: m = 250(0.75)^6 = 250(0.178) = 44.50
Allison: m = 250(0.75)^6-6 = 250(1) = 250

250 - 44.50 = 205.50

On hour 6, Allison will have 205.5 mg more of the medicine than Jana.
7 0
1 year ago
Read 2 more answers
Other questions:
  • The director of marketing at a large company wants to determine if the amount of money spent on internet marketing is a good pre
    9·1 answer
  • Max is painting a fence.The table shows the number of square feet he painted after various numbers of minutes. What is the rate
    9·2 answers
  • Wendy opens a bank account with money she has saved. After this initial deposit, Wendy then deposits the same amount of money ea
    5·2 answers
  • Sean took 4 hours to travel from Town A to Town B at an
    8·1 answer
  • A caricature artist works 5 days a week, draws 18 portraits per day on
    9·2 answers
  • 2. Ella invests $2,000 in an account that pays a 4% annual interest rate, compounded continuously. What is the value of her acco
    14·1 answer
  • Click to select the figure in the image that would portray the rotation of the given preimage and the rotation arrow,
    13·1 answer
  • It is recommended that adults consume at least 1,000 mg of calcium every day. One ounce of whole milk contains about 25 mg of ca
    13·1 answer
  • PLZZZZZZZ HELP ASAP Figure JKL is reflected about the y-axis to obtain figure J’K’L’: A coordinate plane is shown. Triangle JKL
    11·2 answers
  • The Leaning Tower of Pisa in Italy was built between 1173 and 1350. A. Write an equation in slope-intercept form for the yellow
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!