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
egoroff_w [7]
3 years ago
8

John is 3 years older than Susan and khalid is 5 years younger than her . The sum of their ages is 40 .

Mathematics
1 answer:
lapo4ka [179]3 years ago
8 0

Answer:

John is 17,

Susan is 14,

and Khalid is 9.

Step-by-step explanation:

a = John's age

b = Susan's age

c = Khalid's age

Let's set our rules from the given information.

a = b + 3

c = b - 5

a + b + c = 40

Now, we can solve for b through substitution.

(b + 3) + b + (b - 5) = 40

3b - 2 = 40

3b = 42

b = 14

So, now that we have Susan's age, we can follow the rules and see if it holds.

17 + 14 + 9 = 40 Viola!

You might be interested in
6x - 8 ≤ 184 <br> i need answer for test corrections
jekas [21]
I hope this helps.....

Explanation:
I took this in 9th grade so I know how to do this kind of stuff

5 0
3 years ago
a third grader has a goal of solving 100 math facts in 5 minutes (or 300 seconds). how many seconds can he spend on each math fa
arsen [322]

Answer:

1 fact per 3 seconds because you divide 300 by 100

5 0
3 years ago
Read 2 more answers
Anybody know the answer ?
IgorC [24]
Im pretty sure its -125/51
6 0
3 years ago
ALL MY POINTS PLZ BE RIGHT
shepuryov [24]

Answer:

-xy^6 +2y -6

Step-by-step explanation:

(-6x^2 y^8+12xy^3-36xy^2)

-------------------------------------------

6xy^2

Divide each term by 6 in the numerator and denominator

(-6/6x^2 y^8+12/6xy^3-36/6xy^2)

-------------------------------------------

6/6xy^2

-x^2y^8 +2xy^3 -6xy^2

---------------------------------

xy^2

Divide each term by x in the numerator and denominator

-x^2/xy^8 +2x/xy^3 -6x/xy^2

---------------------------------

x/xy^2

-xy^8 +2y^3 -6y^2

---------------------------------

y^2

Divide each term by y^2 in the numerator and denominator

Remember when dividing, we subtract the exponents

-xy^8/y^2 +2y^3/y^2 -6y^2/y^2

---------------------------------

y^2 /y^2

-xy^6 +2y^1 -6

---------------------------------

1

-xy^6 +2y -6

7 0
3 years ago
Read 2 more answers
The equation for a line passing through (-4, 6) and (1, 0) could be written in slope-intercept form as:
aleksandr82 [10.1K]

Answer: b. Y= -6/5x + 6/5

First find the slope of your two points, then write your equation in point-slope form. Using your equation in point-slope form, you can solve and convert it to slope-intercept form.

7 0
3 years ago
Other questions:
  • Which two consecutive whole numbers does square root 39 lie between? why?
    9·2 answers
  • Degree 3 polynomial with integer coefficients with zeros -2i and 7/5
    7·1 answer
  • I really need help with this
    10·1 answer
  • If f(x)=3x+2and g(x)=x^2-9 find (f-g)(x)
    13·1 answer
  • The ratio of the number of boy campers to the number of girl campers was 8:7. If there were a total of 195 campers, how many boy
    6·1 answer
  • Kiersten runs a website that helps people learn to programme. Every month, Kiersten receives a subscription fee of a 10 from eac
    8·1 answer
  • Factorial – is the product of natural numbers, for example:
    14·1 answer
  • Set up an en equation and use it to solve for x
    6·2 answers
  • HELPPPP ASAPPP MARKING BRAINLIEST
    10·1 answer
  • Please help, this is confusing and i don’t know what to do
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!