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
AveGali [126]
3 years ago
9

Simplify -3(2.5-k)+0.5(7+8k)

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0

Answer:

-7•5+3k+3•5+4k

-7•5+3•5+4k+3k

-4+7k

You might be interested in
What is 2, 3, 4?????????
lesya692 [45]

Answer:

2 = 51 degrees

3 = 51 degrees

4 = 51 degrees

not that sure

Step-by-step explanation:

https://brainly.com/

8 0
2 years ago
On a standardized exam, the scores are normally distributed with a mean of 300 land a standard deviation of 20. Find the z-score
Liula [17]

Answer:

82?

Step-by-step explanation:

6 0
2 years ago
Wilton collected $8.50 in dimes and quarters while cleaning his father's truck. If the number of quarters is 3 times the number
dusya [7]

Answer:

Wilton found 10 dimes while cleaning his father's truck.

Step-by-step explanation:

Given that:

Total amount collected = $8.50 = 8.50*100 = 850 cents

Let,

x be the number of dimes

y be the number of quarters

According to given statement,

10x+25y=850     Eqn 1

y = 3x     Eqn 2

Putting y=3x in Eqn 1

10x+25(3x)=850\\10x+75x=850\\85x=850

Dividing both sides by 85

\frac{85x}{85}=\frac{850}{85}\\x=10

As x represents dimes, therefore, number of dimes is 10.

Hence,

Wilton found 10 dimes while cleaning his father's truck.

8 0
3 years ago
Is -3 a natural number a whole number a integer a rational number or irrational number
BaLLatris [955]

Answer:

-3 is a rational integer.

Step-by-step explanation:

An integer is a superset of the whole numbers that includes the negated values as well as 0.

A rational number is simply anything that can be expressed as a fraction.

-3 is by these definitions, a negated 3, and any non fractional number can be expressed as a fraction.

-3 is not a natural number, as that is the set of numbers {1, 2, 3, 4, 5, ... etc} and -3 is not a whole number, as that is the set of numbers {0, 1, 2, 3, 4, ... etc}.

And -3 is also not an irrational number since it can be expressed as a fraction.

Thus, -3 is a rational integer.

Cheers.

7 0
2 years ago
A rectangle has perimeter 92 cm and length 39 cm. What is its width?
Alik [6]
The answer:
The width is 7cm
7 0
2 years ago
Read 2 more answers
Other questions:
  • A rectangular parcel of land is 70 ft longer than it is wide. Each diagonal between opposite corners is 130 ft. What are the dim
    6·1 answer
  • 5х + 3 = 43<br> What this??
    7·2 answers
  • One number is 10 more than another. The sum of twice the smaller plus three times the larger, is 55. What are the two numbers?
    10·1 answer
  • What is -5(2a+3b) simplified
    7·2 answers
  • 670.65 which digit is in the tenths place
    15·2 answers
  • Please answer this correctly without making mistakes
    15·2 answers
  • Find the x- and y-intercepts and then sketch the graphs of these rules.<br> a y = x + 1
    14·1 answer
  • The length of a rectangle is five time it’s width. If the perimeter of a rectangle is 84ft, find its area
    15·1 answer
  • Determine if each of the following functions from {a,b, c,d} to itself is one-to-one and/or onto. Check ALL correct answers. (a)
    6·1 answer
  • Which function could represent the value of a rare coin that increases over time? y=−32x+1y is equal to negative 3 halves x plus
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!