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
I need help on this​
love history [14]

Answer:

-11/4

Step-by-step explanation:

 (-8 - 3)/[3-(-1)]= -11/4

5 0
3 years ago
A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walked once around the track
harkovskaia [24]

Answer:

  C.  2.0 < t < 2.5

Step-by-step explanation:

  time = distance / speed

The circumference of the lake is given by ...

  C = πd = 2π miles ≈ 6.28 miles

Then Johanna's time is ...

  (6.28 mi)/(3 mi/h) ≈ 2.09 h

This time is in the interval (2, 2.5), so matches choice C.

___

<em>Alternate solution</em>

If we take pi to be 3, then this boils down to ...

  2×3/3 = 2 . . . hours

Pi is on the order of 5% more than 3, so her time will be on the order of 5% more than 2 hours, or just above 2, but not as great as 2.5 hours. This sort of estimating can get you to the correct answer without a calculator.

6 0
4 years ago
In the equation 0.75s-5/8 = 44, how do you combine the like terms?
garri49 [273]

Answer:

Step-by-step explanation:

In the given equation, the "like terms" are the constants 5/8 and 44.

It simplifies the math if we eliminate the fractions first.  Note that 0.75 = 6/8, so now we have:

8(6/8)s - 8(5/8) = 44).

Multiplying all three terms by 8 (above) yields

8(6s) - 8(5) = 8(44), or

48s              = 8(44 + 5), or 48s = 8(49)

Dividing both sides by 48 yields s:   s = 8(49/48)

Review "like terms:"  These are terms that have at least one characteristic in common.  5/8 and 44 are like terms because they are only constants (no variables are present).  We must add 5/8 and 44.   0.75s does not have a "like term" in the given equation.

6 0
3 years ago
Need help please will give brainliest
zepelin [54]

Answer:

y=1/5x+7

Step-by-step explanation:

5 0
3 years ago
If your current examination mean is 97.2 and you receive a 99 on the next examination, what effect will this have?
mr Goodwill [35]

If you have an average of 97.2 on your current exam and you get a 99 on your next exam, your average will increase.

  • Mean in mathematics is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the total number of values.

  • To find the average, sum all the values ​​in the set. Then divide the total by the number of values.

We have the current examination mean, xold = 97.2

Now, we receive,  x = 99 on the next examination, the new mean will be:

xnew = (xold + x)/N

xnew = (97.2+99)/2

xnew = 196.2/2

xnew = 98.1  

The new average is 98.1

98.1 > 97.2

So if you score 99 on your next exam, your average will increase.

Learn more about mean here

brainly.com/question/1136789

#SPJ4

3 0
2 years ago
Read 2 more answers
Other questions:
  • Selena rides her bicycle to work. It takes her 15 minutes to go 3 miles. If she continues at the same rate, how long will it tak
    13·1 answer
  • Daniel saves 30% of every paycheck. his paycheck last week was 560.
    11·1 answer
  • True or false: f(x) is a function.<br> A<br> 2<br> f(x)
    5·1 answer
  • Help i’ll give brainliest
    7·2 answers
  • In chemistry lab, there are 9.52 grams of powdered substance in a container. Max needs to place substance into each of 3 glass p
    14·1 answer
  • Bonnie is three times as old as her brother, h. The sum of their ages is less than 44. What is the greatest age Bonnie’s brother
    5·1 answer
  • 11. A gift store owner used 9 rolls of wrapping paper to
    8·2 answers
  • If y^3=64,what is y?
    15·1 answer
  • PLS SOLVE BRAILEST GIVEN
    10·1 answer
  • Mrs. kelley asked her students to plot the number of books they read over the summer. a dot blot titled books read over the summ
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!