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
torisob [31]
3 years ago
9

The sum of A and B is 171 and their difference is 35. What are the numbers?

Mathematics
2 answers:
mixas84 [53]3 years ago
8 0

Answer:

103 and 68

Step-by-step explanation:

Given

A + B = 171

A - B = 35

Add the two expressions to eliminate B.

B + (-B) = B - B = 0

We have

2A = 206

Divide both sides by 2 to isolate A

2A/2 = 206/2

A = 103

Now substitute 103 for A in either expression to get B

Using the first expression , we have

A + B = 171

103 + B = 171

Subtract 103 from both sides

103 - 103 + B = 171 - 103

B = 68

The numbers are 103 and 68

Check

103 + 68 = 171

103 - 68 = 35

antoniya [11.8K]3 years ago
3 0

Answer:

103 and 68

Step-by-step explanation:

since the difference has to be 35 subtract 35 from 171 (equals 136) then divide it by 2, you get 68 which is your first number, then add 35 back and get 103 for the second number, I hope this helped

You might be interested in
Oil is often measured in barrels one barrel can hold the 42 gallons of oil how many gallons of oil can 7 barrels hold
svetoff [14.1K]
294 gallons of oil is the answer because you do 42 and mltiply it by 7
7 0
2 years ago
A cone is 3 inches high and has a base with a surface area of 7 square inches. What is the volume of the cone?
lawyer [7]

Answer: the answer should be 7

Step-by-step explanation:  V=πr2h

3=π·1.52·3

3≈7.06858

you can find the radius for the area of the base 7 by dividing by \pi like such 7/3.1459 the squared because remember its in r2 form which give you 1.5 then plug this in for one of two ways to solve A·\pi 1/3 or V=πr2h

4 0
3 years ago
A car's wheels spins at 1000 revolutions per minute. The diameter of the wheels is 23 inches. You want to know how fast the car
ch4aika [34]

Answer:

72,220 inches per  minute

Step-by-step explanation:

A car's wheels spins at 1000 revolutions per minute. The diameter of the wheels is 23 inches.

1 revolution = 2\pi radians

\frac{theta}{tome}=\frac{1000 \ revolution}{1 \ minuite} = \frac{1000* 2\pi }{1} =\frac{2000\pi}{1 \ minute}

Speed V= \frac{r*theta}{t}

r is the radius , theta is the angle and t is the time

We know diameter = 23  , then radius = 23/2

Speed V= \frac{23}{2}*\frac{2000\pi}{1}

Value of pi = 3.14

speed = 23000* 3.14= 72220 inches/ minute


3 0
2 years ago
Read 2 more answers
What is the y-intercept of the line described by the equation y= 7x+4
Eddi Din [679]
The slope-intercept form: y = mx + b

m - the slope
b - the y-intercept

y = 7x + 4

Answer: The y-intercept b = 4 ⇒ (0; 4)
6 0
3 years ago
How do I graph the solution
notsponge [240]
Make the circle closed and the > needs to be underlined

8 0
3 years ago
Other questions:
  • A race is 10 km long markers will be placed at the beginning and the end of the race course and I each 500 m Mark how many marke
    8·2 answers
  • Place the following in least to greatest. 3.24,3.45,3.429,3.024,3,5
    9·1 answer
  • Help !!!!! It’s algebra :(
    5·2 answers
  • A chess team has 26 members. However, only 16 members attended the last meeting: half of the girls attended but all of the boys
    8·1 answer
  • In ABC, O is the centroid of the triangle and AO is 12.7 m. Find the length of OY and AY.​
    5·1 answer
  • Orignal price $30 markdown 26%​
    12·1 answer
  • Sarah earns $525 more than Andrew each month. They spend $1250 a month and save the rest. Sarah does not have any savings at fir
    9·1 answer
  • I really need help with this Triangle problem. ​
    14·1 answer
  • Which equation represents the line through the points (3,2) and (-9,6) ?
    12·1 answer
  • Jonas has 1728 copies of a 1 × 1 × 1 cube with the net
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!