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
aev [14]
3 years ago
9

A father who is 42 years old has a son and a daughter. The daughter is three times as old as the son. In 10 years, the sum of al

l their ages will be 100 years. How old are the two siblings at present? PLEASE HELP!!!!!!!!!!!!!!!!
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0

Answer:

The daughter is 36 years old and the son is 12 years old.

You might be interested in
Use the following information for questions 1 through 6. The dietitian at a camp is planning breakfast for the first day of camp
Dima020 [189]

Answer:

Let x and y be the pieces of toast and sausage required.

Then the objective function is

Min Z=0.04x+0.08y

Constraints:

Vitamin A, 2x+4y≥20

Vitamin B, 3x+1.5y≥15

Iron, 2x+2y≥16

Sausage, y≤4

The non-negative constraints are x≥0, y≥0

Thus, the linear programming model is

Min Z=0.04x+0.08y

Subject to,

2x+4y≥20

3x+1.5y≥15

2x+2y≥16

y≤4

x≥0, y≥0

1) There are two variables in the LP model. So, option (B) is correct.

2) The LP model contains four constraints (excluding the non negative constraints). So, option (D) is correct.

3) Solving the LP model using a software, we get the solution as

z=0.4, at x=6 and y=2

So, The cost of the breakfast is $ 0.4. Option (B) is correct.

4) The breakfast should contains 6 toasts.

5) The amount of Vitamin B in the breakfast = 3(6)+1.5(2)=18+3=21 milligrams. So, option (C) is correct.

6) The amount of Iron in the breakfast= 2(6)+2(2)=12+4=16 milligrams. So, option (B) is correct.

Step-by-step explanation:

4 0
3 years ago
simple interest on a certain sum is 16/25 of the sum. Find the rate per cent and time if both are numerically equal.
Shkiper50 [21]
16÷2+25÷2=%÷2=%%%%%%%
7 0
3 years ago
Hi this assignment is due by this week I need someone to help me do this
Nataly_w [17]

Answer:

um

Step-by-step explanation:

3 0
2 years ago
How can numbers be expressed ordered and compared for a third grader
Anarel [89]
Line all the numbers in a column and compared where the numbers are not the same numbers
7 0
3 years ago
3/8 times what equals 1
horsena [70]
3/8 times 8/3 = 1
Answer=8/3
6 0
2 years ago
Other questions:
  • Use the following function rule to find f(3). f(x) = (2)^x+2 f(3)=
    13·1 answer
  • 2 3/7÷2/3×3/4<br><br> Please help I need the homework done by tomorrow
    15·1 answer
  • -2.05 is greater or less than -2.50​
    12·2 answers
  • What is the value of the expression below when x=3 and y=8?<br> 6x + 10y
    5·1 answer
  • The difference of a number s and 6
    14·1 answer
  • (BRAINLYEST TO RIGHT ANSWER) A group of 281 people is going on a boat tour. If each boat holds 8 people, how many people will be
    11·1 answer
  • A store manager is inspecting two large bags of nuts. In bag A, 35% of the nuts are cashews. In bag B, 40% of the nuts are cashe
    6·1 answer
  • PLEASE HELP I HAVE NO CLUE WHAT TO DO
    7·1 answer
  • Select all equations that are equivalent to x2+6x=16.<br>​
    14·1 answer
  • Bc
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!