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
balandron [24]
3 years ago
15

Four whole nuber are each rounded to the nearest 10 the sum of the four rounded numbers is 90 what is the possible maximum sum o

f the four original numbers
Mathematics
1 answer:
bearhunter [10]3 years ago
3 0

Answer:

106

Step-by-step explanation:

Let's try guessing...

45+45=90\\30+30+30=90\\10+20+30+30=90

All the units place has to be 4, if it is higher than 4 then the answer will not be 90 (the sum of the four rounded numbers).

14 + 24 + 34 + 34= 106

You might be interested in
What is the difference? StartFraction x 5 Over x 2 EndFraction minus StartFraction x 1 Over x squared 2 x EndFraction StartFract
Troyanec [42]

The difference of the given fraction is expressed as \frac{x^2+4x-1}{x(x+2)}

Given the expression:

  • \frac{x+5}{x+2}-\frac{x+1}{x^2+2x} \\

Take the LCM of the fraction to have:

=\frac{x+5}{x+2}-\frac{x+1}{x(x+2)} \\=\frac{x(x+5)-(x+1)}{x(x+2)} \\=\frac{x^2+5x-x-1}{x(x+2)}\\=\frac{x^2+4x-1}{x(x+2)}

Hence the difference of the given fraction is expressed as \frac{x^2+4x-1}{x(x+2)}

Learn more on fractions here; brainly.com/question/78672

7 0
2 years ago
Read 2 more answers
In 20 words or fewer, can 8 • 7 • 6 be written as 8! . . . and why or why not?
grin007 [14]

Answer:

No, because factorials are product of all positive integers less than or equal to a given positive integer.

5 0
3 years ago
How much 75 octane gas and 90 octane gas should be blended to make 15 gallons of 88 octane gas
Lisa [10]
75x + 90(15-x)=88(15)

75x+1350-90x = 1320

-15x + 1350 = 1320

-15x= -30

x=2

the amount of 75 octane is 2 gallons
the amount of 90 octane is 13 gallons

Hope this helps.
3 0
3 years ago
Question 3<br> Solve this system by using the elimination method.<br> 4x + 2y = 8<br> 5x + 3y = 9
umka21 [38]

Answer:

x=3, y=-2. (3, -2).

Step-by-step explanation:

4x+2y=8

5x+3y=9

---------------

simplify 4x+2y=8 into 2x+y=4

-----------------

2x+y=4

5x+3y=9

----------------

y=4-2x

5x+3(4-2x)=9

5x+12-6x=9

-x=9-12

-x=-3

x=3

2(3)+y=4

6+y=4

y=4-6

y=-2

7 0
4 years ago
Please show your work with each expression. Simplify.
Alina [70]
(replace the variables) 6(9)-2(5)^2
(simplified) 54-10^2.... 54-100=-46
6 0
3 years ago
Other questions:
  • Solve the following proportion for X
    13·1 answer
  • Suppose that $6500 is placed in an account that pays 3% interest compound each year. Assume that no withdrawals are made from th
    15·1 answer
  • Solve by elimination method 5x-2y=11, 3x+4y=4.​
    5·1 answer
  • Which of the following are factors of both 15 and 45?
    5·2 answers
  • A researcher wishes to conduct a study of the color preferences of new car buyers. suppose that 50% of this population prefers t
    14·1 answer
  • The expression p(3-0.5x) is equivalent to the expression -24+qx. In these expressions, p and q are rational numbers. What is the
    6·1 answer
  • Find the value of x.<br> 24<br> 10
    5·2 answers
  • Mrs. Randolph teaches math. She has 26 students in first period, 32 students in 2nd period, 27 students in 3rd period, and 30 st
    7·1 answer
  • Which is bigger .24 or .71
    12·1 answer
  • at the elementary school fun fair,the ratio of the number of adults to the number of kids is 4:7. If there are 159 more kids tha
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!