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
andrey2020 [161]
3 years ago
15

Sam can not read part of this homework problem. -7y +5(3 + ___y) Sam knows the expression simplifies to 3y + 15. What number bel

ongs on the blank line in the homework problem?
A -4


B 4


C 10


D 2
Mathematics
1 answer:
weqwewe [10]3 years ago
4 0
<span>Let the variable A represent the number that goes in the blank.

-7y + 5(3 + Ay) = 3y + 15

-7y + 15 + 5Ay = 3y + 15

-7y + 5Ay = 3y

(-7 + 5A)y = 3y

-7 + 5A = 3

5A = 10

A = 2

Answer: D. 2
</span>
You might be interested in
If f(x)=2x+5<br> and g(x)=x^2+1<br><br> evaluate: <br> g(f(3))
Agata [3.3K]
If you meant “g(f) 3 evaluating it will give you 3gf by just moving the 3. Hope this helps.
6 0
3 years ago
6(5+7)-4.8 pls help....................
pashok25 [27]

Answer:

67.2

Step-by-step explanation:

5 + 7 = 12

6 * 12 = 72

72 - 4.8 = 67.2

7 0
3 years ago
Read 2 more answers
Which of the following is a specific species designation
Nutka1998 [239]

Sapien because the word homo in homo sapien is the genus name, while the word sapien is the species name.

5 0
3 years ago
On average, Christopher scores 2 goals in a soccer game but, depending on how well the opposing team is playing, his goal total
SVETLANKA909090 [29]

Given:

Christopher scores 2 goals in a soccer game.

His goal total can vary from the average by 1 goal.

To find:

The absolute value equation can be used to calculate Christopher's maximum and minimum goals per game.

Solution:

Let Christopher scores x goals in a soccer game.

Then difference between actual goals and average goals is x-2.

His goal total can vary from the average by 1 goal.

Maximum number of goals = 2+1 = 3

Minimum number of goals = 2-1 = 1

It means, the difference between actual goals and average goals is either -1 and 1.

x-2=-1        ...(1)

x-2=1         ...(2)

Using (1) and (2),we get

|x-2|=1

Therefore, the correct option is C.

7 0
3 years ago
I’m the diagram PN is the perpendicular bisector of AB and the angle bisector of
Ratling [72]
Remark
You need to start with three facts.
x and y are complements which means that x + y = 90
Sin(x) = cos(90 - x) 
<CPN = <DPN   Definition of a bisector.

From the 3 facts above, we can gather than 
CPN + y = 90
Therefore the cos of CPN = Sin(y)
4 0
3 years ago
Read 2 more answers
Other questions:
  • -5(-7,3) in y=mx+b form
    10·1 answer
  • What is the average rate of change for this quadratic function for the interval from x = 0 to x = 2? A. –2 B. 2 C. 4 D. –4
    8·2 answers
  • I need this to be correct
    5·2 answers
  • What is 5x + 2= 3x -16
    9·2 answers
  • Uncle drew scored 28 points in 5 5/6 minutes. How many points did he average per minute
    9·2 answers
  • What is the solution to the inequality?
    8·1 answer
  • Evaluate 1/5ab if a =3/7 and b =5/8. Write in simple from
    6·2 answers
  • Completely factor the polynomial.
    14·1 answer
  • Please answer correctly<br><br> 2 + 3( 4x + 5) = -53
    13·2 answers
  • A farmer uses a lot of fertilizer to grow his crops. The farmer's manager thinks fertilizer products from distributor A contain
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!