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
Ganezh [65]
3 years ago
13

If a + b = 7 and b=3, what is 4a A. 20b B. 17a C. 16 D.20

Mathematics
2 answers:
Ratling [72]3 years ago
4 0

Answer:

\huge \colorbox{red}{ \boxed{ \blue{ \sf}{c.16}}}

Step-by-step explanation:

in this Question, you have to plug the value for <u>b </u> into <u>a+</u><u>b=</u><u>7</u><u> </u>in order to find <u>a</u><u>:</u>

  • <u>a+</u><u>b=</u><u>7</u>
  • <u>a+</u><u>3</u><u>=</u><u>7</u>
  • <u>a=</u><u>4</u>

once you know that <u>a=</u><u>4</u><u>,</u><u> </u>just substitute into <u>4</u><u>a</u><u>:</u>

  • <u>4</u><u>×</u><u>4</u><u>=</u><u>1</u><u>6</u>
evablogger [386]3 years ago
3 0
C 16 because a is 4 and 4 times 4 is equal to 16
You might be interested in
What value(s) of x make the equation x2 - 18x + 81 = 0 true?
mel-nik [20]
We can factorise this to get (x-9)(x-9). To find the value, each bracket needs to equal 0, so the value would be x=9
5 0
3 years ago
Read 2 more answers
What is the value of X?<br> A 57 B 48 C 38 D 28
olga_2 [115]

Answer: D. 28

Step-by-step explanation:

The 3 interior angles of a triangle always add up to 180

Soooo:

95 + 57 = 152

180 - 152 = 28

5 0
3 years ago
Please help i am giving away brainliest
emmasim [6.3K]

Answer:

6,480in.3

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
What is $ 1,000,000 x 0.3=
Marat540 [252]

Answer:

300,000

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the circumference of the circle
Law Incorporation [45]

Answer:

C

Step-by-step explanation:

2 x pi x r = circumfrence

2 x 7 x pi = 43.96

8 0
3 years ago
Read 2 more answers
Other questions:
  • doug has 45 coins worth $9.00. The coins are all quarters or dimes. How many of each type of coin dose doug have?
    5·1 answer
  • 5) y = -7x - 13<br> 8x + y = -14
    9·1 answer
  • Helppppppppp meeeeeee plsssssssss
    15·1 answer
  • What is the cost of a 12-in. by 12-in. book with 28 pages?
    6·1 answer
  • at a dog shelter a, 26-pound bag of dog food will feed 40 dogs. how many dogs would you expect to feed with a 13-pound bag dog f
    7·1 answer
  • Please Help! It is Pre-Calc and I need to know the answer!
    8·1 answer
  • The equation of a circle is x^2 + y^2 -4x + 2y -11 =0 . What are the center and the radius of the circle? Show your work.
    11·1 answer
  • locate the point on the line segment A (3,-5) and B (13,-15) given that the point is 4/5 of the way from A to B. Show your work
    6·1 answer
  • Find the equation of the perpendicular bisector between two points (2,7) and (-6, -1)
    9·1 answer
  • Megan left a $5 tip on a $36 restaurant bill. What percent tip is that? Give your answer to two decimal places if necessary.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!