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
Please solve with working much appreciated
Oduvanchick [21]

Answer:

I don't know nan molla

Step-by-step explanation:

For example, Kino had a good opportunity to barely have a better life and he could have done anything to save his family but instead of doing that he refused to take the 1500 pesos.gddff

4 0
3 years ago
a student bought a juice pouch for $2.50 and 3 bags of chips. the total cost was $5.05 write and solve an equation to determine
Wittaler [7]

First, write it as an equation

2.50+3x=5.05

Next, subtract 2.50 from both sides

2.50-2.50+3x=5.05-2.50

3x=2.55

Divide 3 on both sides

3x/3=2.55/3

x=0.85

The cost of a bag of chips is 0.85

hope i helped :D

5 0
2 years ago
Read 2 more answers
What is the inverse of y=2x squared -4
Bumek [7]
y=2x^2-4\ \ \ |+4\\\\2x^2=y+4\ \ \ |:2\\\\x^2=\dfrac{y+4}{2}\\\\x=\sqrt{\dfrac{y+4}{2}}

y^{-1}=\sqrt{\dfrac{x+4}{2}}=\dfrac{\sqrt{x+4}}{\sqrt2}=\dfrac{\sqrt{2(x+4)}}{2}=\dfrac{\sqrt{2x+8}}{2}
6 0
3 years ago
If 0.15% of budget is spent on office supplies, what decimal should you multiply budget
VMariaS [17]

Answer:

0.015

Step-by-step explanation:

0.15% = 0.0015

{transfer}

4 0
1 year ago
What is the value of \dfrac{x^2}{y^4}
Nimfa-mama [501]

Answer:

4

Step-by-step explanation:

x^2/ y^4

Let x=8 and y=2

8^2 / 2^4

PEMDAS says powers first

64 / 16

Divide next

4

3 0
3 years ago
Read 2 more answers
Other questions:
  • Of the 18 students who received an allowance, 16 do chores around the house. What fraction of the students, in the simple list f
    14·2 answers
  • If the absolute value of x is 4, what is the value of x?
    15·1 answer
  • The owners of a waterpark are taking a survey to determine how many trips to the park kids in the area take during the summer. t
    15·1 answer
  • A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teacher
    5·2 answers
  • 3x - (2 - x) + 1<br> or<br> -5 + 4x + 4<br> Which is greater
    12·2 answers
  • The given table values represents a liner equation. What is the slope?
    10·1 answer
  • Find two numbers that round to 264.5 when rounded to the nearest tenth
    7·1 answer
  • What is the slope of the line that passes through the points (-4,-4) and (-4,9)? Write answer in simplest form and explain how y
    6·1 answer
  • Ok ong i'm struggling and need help i've been up all night- Ill give brainlyest!!
    6·1 answer
  • For 50 randomly selected speed​ dates, attractiveness ratings by males of their female date partners​ (x) are recorded along wit
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!