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
lisabon 2012 [21]
3 years ago
11

The sum of two numbers is 20,one number is 4 less than the other.find the number

Mathematics
2 answers:
kogti [31]3 years ago
5 0
I’ve attached my work
Hope this helps!

Marysya12 [62]3 years ago
4 0
X-4+x=20


2x=20+4
2x=24
X=12
Number is 12 because 12-4 is 8 and 8+12 is 20
You might be interested in
The height of a triangle is 3cm less than the length of its base and is area is 27m,find the height
Shkiper50 [21]
Area of a triangle=bh/2

27= x(x-3)/2
27= (x^2-3x)/2
54= x^2-3x
x^2-3x-54=0
(x-9)(x+6)=0

x=9, x=-6.
In this case, x must equal 9 since the base cannot be a negative number.

Final answer: Height=6 m
6 0
3 years ago
Twice a number is less than or equal to the sum of a number and 15
Hoochie [10]

Answer:itequalsjeh

Step-by-step explanation:

Ehhs

3 0
3 years ago
Truck tire life is normally distributed with a mean of 60,000 miles and a standard deviation of 4,000 miles. what is the probabi
olasank [31]
To solve for the P(54,000≤x≤66000) we proceed as follows:
z-score=(x-μ)/σ
μ-60000
σ-4000
thus:
when x=66,000
z-score=(66000-60000)/4000=1.5
P(z≤1.5)=0.9332
when x=54000
z=(54000-60000)/4000
z=-1.5
P(z≤-1.5)=0.0668
thus
 P(54,000≤x≤66000) 
=P(z≤1.5)-P(z≤-1.5)
=0.9332-0.0668
=0.8664

Answer: 0.8664
8 0
3 years ago
This is what I meant on my last question. sorry​
Zigmanuir [339]

Answer:

its C

Step-by-step explanation:

4 0
3 years ago
Christine went shopping and bought each of her eighteight nephews a​ gift, either a video costing​ $14.95 or a CD costing​ $16.8
pogonyaev
So I think you should set up an equation like this: 14.95x+16.88y=131.18 , x+y=8

so x=8-y, plug this into the original equation:
14.95(8-y)+16.88y=131.18
Evaluate: 119.60-14.95y+16.88y=131.18
Combine like terms: 119.60+1.93y=131.18
Subtract 119.60 from both sides. You get: 1.93y=11.58
Divide both sides by 1.93. You get y=6

Plug into second equation: x+y=8 ---> x+6=8 and solve for x. x=2

Christine bought 2 video games and 6 CDs. 14.95(2)+16.88(6)=131.18
4 0
3 years ago
Other questions:
  • How many pounds are represented by 764.6 mg? [1 pound = 454 g]?
    6·2 answers
  • What is 300 divided by 400
    12·1 answer
  • The sum of three consecutive natural numbers is 450 find the numbers. The three numbers in increasing order are?
    13·1 answer
  • How can I find the missing value
    9·1 answer
  • I need to find the missing numbers
    15·1 answer
  • In bowling, knocking down all of the pins with the first ball of a frame is called a strike. Roni is practicing bowling and gets
    15·1 answer
  • If P is the incenter of JKL, find m Please show the work, that would be really helpful, thank you!
    6·1 answer
  • Combine 3 and 5 times j gives 18
    7·1 answer
  • Given M is the midpoint of segment TV. TM = 7x -2 and MV = 4x + 13, find TV.
    15·1 answer
  • Eric orders 3 large cheese pizzas. There is a $2 delivery fee for each pizza.He pays a total of $42.Which equation can be used t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!