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
wel
3 years ago
14

Sum of two numbers is 24 and the difference is 15.What are the two numbers ?

Mathematics
1 answer:
natulia [17]3 years ago
4 0
Translate that into an equation, and we get:

a+b = 24
a-b = 15

If we add these two equations, we get:

2a = 39
a = 39/2 = 19.5

Plug back in a = 19.5 and solve for b

a + b = 24
19.5 + b = 24
b = 4.5

The two numbers are 19.5 and 4.5.
You might be interested in
The quotient of a number and 3
zhuklara [117]
The quotient of a number and three can be written as n/3
8 0
3 years ago
Read 2 more answers
I NEED A ANSWER FAST PLEASE HELP
NikAS [45]

Answer:

Elevation in boiling point is mathematically expressed as

ΔTb = Kb X m

where Kb =  boiling point elevation constant =  2.53°c/m (for benzene)

m = molality of solution = 3.47 m (given)

∴ ΔTb = 2.53 X 3.47

          = 8.779 oC

But, boiling point of benzene = 80.1 oC

∴ Boiling point of solution = 88.879 oC

Now, Depression in freezing point = ΔTf = Kf X m

where, Kf = freezing point depression constant = 5.12°c/m (for benzene)

∴ ΔTf = 5.12 X 3.47

        = 17.766 oC

But freezing point of benzene = 5.5 oC

∴ Freezing point of solution = -12.266 oC

3 0
3 years ago
Can some help me with the question it’s hard
xenn [34]

Answer: 0.73

Step-by-step explanation:

It's really easy when you think about it!

All you have to do is subtract:

$2.30 - $1.57:

0.73

If this is helpful please please please please please mark as the brainliest answer!

Have a good night!

4 0
3 years ago
Read 2 more answers
A line passes through the points (-1,6) and (3,-3). Write the equation of the line in slope-intercept form.
son4ous [18]

Step-by-step explanation:

Slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept (where x = 0).

Use the given points, substituted into the standard equation, to get 2 equation with m and b as unknowns.  Solve this pair of equations for m and b, using the standard methods.

Please give me a like, rate and Brainliest Please and Thank you!

5 0
3 years ago
Which of the following would be a good estimate for -7.94-2.31?
Nadusha1986 [10]
A good estimate would be -10.

In order to estimate, start off by rounding both numbers to the nearest whole number. -7.94 can be rounded to -8 because the first number to the right of 7 is greater than 5. 2.31 can be rounded to 2 because the first number to the right of the 2 is less than 5. 

After rounding, the expression becomes -8-2, which is equal to -10.
8 0
3 years ago
Read 2 more answers
Other questions:
  • At 50, Brian sets up an IRA, where he plans to deposit $12,000 at the end of each year until age 75. Find the amount of the annu
    8·1 answer
  • A list of numbers in a specific order
    12·1 answer
  • In a weekly lottery, ten ping-pong balls numbered 0 to 9 are placed in each of six containers, and one ping-pong ball is drawn f
    11·2 answers
  • A line passes through the points (7, 10) and (7, 20). Which statement is true about the line? It has a slope of zero because x 2
    11·2 answers
  • Write a vector equation of the line that passes through point P(-4,11) and is parallel to a=[-3,8]. Then write parametric equati
    6·1 answer
  • Given f(x)= √7x and g(x) = 1/x-8 which value is in the domain of f^o g
    7·1 answer
  • A triangular bandana has an area of 74 square inches. The height of the triangle is 9 1 4 inches. Enter and solve an equation to
    15·1 answer
  • The length of a rectangle is the same as its width. If its perimeter is 32 meters, what is its area? 15points- HELP ME PLLLLLLLE
    15·2 answers
  • What is the answer.
    12·1 answer
  • Ill mark brainlist plss help
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!