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
arsen [322]
3 years ago
9

Barbara use distributive property to write an expression that is equivalent to 7d+63. Her work is shown below. The greatest comm

on factor is 7 so 7d +63=7(d+63)
What was Barbara’s error?
A-Barbara wrote(d+63) Instead of(63d)
B-Barbara wrote (d+63) Instead of (d+9)
C-Barbara wrote (d-+63) instead of (d+56
D-Barbara wrote (d+63) instead of (10d)
Mathematics
2 answers:
frozen [14]3 years ago
8 0

Answer:

B-Barbara wrote (d+63) Instead of (d+9)

Step-by-step explanation:

Since the greatest common factor is 7 it simply mean 7 is divisor of the expression 7d +63 and not just a divisor of 7d.

=(7d+63)/7

= (d + 9)

Expression 7(d+63) = (7*d + 7*63) = 7d + 441 which is not equal to 7d +63

So Barbara should have writen 7d +63 = 7(d+9) instead.

eduard3 years ago
4 0

Answer:

Step-by-step explanation:

i think its b

You might be interested in
Limestone is dissolved by chemical weathering at a rate of 0.2 cm every 100 years. At this rate, after how many years souldva la
Zinaida [17]
At this rate, it should take 7,500 years to dissolve 15m thiccccc
4 0
3 years ago
How can you tell which rectangle is bigger: a rectangle with a perimeter of 24 units or a rectangle with an area of 24 square un
Salsk061 [2.6K]

Answer:

Perimeter

Step-by-step explanation:

Perimeter is the outside of the rectangle area is inside

8 0
3 years ago
Mr. Smith is paid $9. 50 per hour for fixing watches. Write an expression for the amount of money Mr. Smith earns in h hours. In
IrinaK [193]

Answer:

$9.50h, $(9.50h +2.20rh)

Step-by-step explanation:

Every hour ----- $9.50

h hours ----- h ×$9.50

Amount of money Mr Smith earns in h hours

= $9.50h

If he fixes a watch per hour, additional income= $2.20h

If he fixes r watches per hour, additional income= $2.20rh

Total income

= $(9.50h +2.20rh)

5 0
2 years ago
Tricia is going to write Patterns A, B, and C using the rule add 15. The first
8_murik_8 [283]

Answer:

The answer is "Pattern B showed number 40; each pattern is also increased as per the rule".

Step-by-step explanation:

In every sequence pattern, it recalls that rule, it adds 15 in this need to build from the specified initial estimate each sequence.

In Pattern A.  

5+20+35+50+......

In Pattern B.

10+25+40+55+70+.....

In Pattern C.

15+30+45+60....

In this, pattern option B is correct because it will give 40.

5 0
3 years ago
GIVING BRANIEST FOR #5
Flura [38]

Answer:

we need to see the other page or we cant solve it

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • 4:
    13·1 answer
  • $394.63781 Round to the nearest dollar
    13·2 answers
  • Determine whether each of the following triangles is a right-angled triangle
    7·1 answer
  • Express in exponential form. log 3 a = n
    10·1 answer
  • Help me please peoplee​
    14·1 answer
  • A plane flies 420 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 15
    6·1 answer
  • Help me lol (please)
    15·2 answers
  • nick received a 5% commission on his total sales. Last week his sales totaled $2,500. How much did nick earn in commission last
    6·1 answer
  • Write the equation of the line passing through the points (-3,7) and (-6,9)
    9·1 answer
  • According to the line of best fit, at what time will the temperature reach 100°C, the boiling point of water?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!