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
Fed [463]
3 years ago
7

The difference of two numbers is 18 and their sum is 90 find the two numbers

Mathematics
1 answer:
Mariulka [41]3 years ago
8 0

Answer 36 and 54

x and x+18 are the numbers

x+(x+18)=90

2x+18=90

2x=72

x=36

x+18=54

36 and 54 are the numbers

You might be interested in
4. Mr. Downey used the function f(x) = -3x2 + 12x to model the flight of a glider. In Mr. Downey's
tankabanditka [31]

Answer: 120 seconds

Step-by-step explanation: In order to find the maximum value of a function, you can take the derivative of the function and equalize the result to 0.

f'(x)=(-3x^2 + 12x)'=-6x+12=0

x=2

When x is 2, the function will reach its maximum value.

f(2)=-3(2)^2 + 12.2 = -12 + 24 = 12

The maximum value (f(x)) is equal to 12 and the time passed is 2 minutes which is equal to 120 seconds.

6 0
3 years ago
Read 2 more answers
Please help with this question?!?
erik [133]

Answer:

416 mi

Step-by-step explanation:

In order to find the surface area, you must find the area of each square. There are a total of 6 that make up the prism.

<em>Remember to find the area it is length x width</em>

  1. 9 x 8 = 72 which is the area for 4 of the squares. 2 on the side and 2 on the bottom
  2. Lastly for the last 2 squares to find the area you multiply 8 x 8 = 64
  3. In total, you will add 72+72+72+72+64+64 which equals 416

3 0
2 years ago
A triangle has one side that measures x, and the other two sides each measure 4 inches less than x. The perimeter is 19 inches.
zalisa [80]
Perimeter of a triangle = all 3 sides added together

x + (x - 4) + (x - 4) = 19
3x - 8 = 19
3x = 19 + 8
3x = 27
x = 27/3
x = 9 <==
6 0
3 years ago
Help Abenkrntnfshahshhf
Elena-2011 [213]

Answer:

A)2/1

Step-by-step explanation:

the x is one apart ans it whent up 2 to the right 1

5 0
2 years ago
Read 2 more answers
A desk drawer is shaped like a rectangular prism. The height of the drawer is 7 inches. The bottom of the drawer has an area of
Bas_tet [7]

Answer:

1470 inches cubed

Step-by-step explanation:

Vol=length × width × height

But ALSO,

length × width = Area,

So we find another Volume equation,

Vol = BaseArea × height

This is the information you are given in the question.

Vol = 210 × 7

Vol = 1470 inches cubed

7 0
2 years ago
Other questions:
  • Which graph represents the solution to the system of inequalities?<br> x + y ≤ 4<br><br> y – x ≥ 1
    12·1 answer
  • Which expressions are equivalent to 4b ?
    11·2 answers
  • Rewrite in a simplest exponential form. Please show work.
    8·1 answer
  • Select the measures that are equal. mark all that apply
    10·1 answer
  • Your friend claimed she has a bag of 30 coins containing nickels, dimes and quarters. The total value of the 30 coins is $2. The
    9·1 answer
  • D) $1.35 Which expression is equivalent to 2x - 17?<br>​
    14·1 answer
  • Kristen's school is due west of her house and due south of her friend Cooper's house. The
    6·1 answer
  • Given the equation
    8·2 answers
  • How many times can you split a number down until it is impossible to divide a number.
    10·1 answer
  • A choir has 3 spots open for altos, and 8 altos are interested in them. in how many ways can the open spots be filled? 24 56 112
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!