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
olchik [2.2K]
3 years ago
15

1. If a - b = 4 and a + b = 12, what is the value of a?

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0
A=8

Explanation: a+b=12 a-b=4
^^^^^^^ ^^^^^^
8+4=12 8-4=4
A=8
You might be interested in
A baseball player comes up to bat 3 times during a league game. He either gets a hit or gets an out. What is the probability tha
KiRa [710]

Answer:

Since there are 2 possibilities for each bat (hit or out), the amount of total possibilities is 2 * 2 * 2 = 8. There is only one possibility out of those eight that gives us three hits, therefore the probability is 1 / 8 or 0.125.

4 0
3 years ago
Robins are common songbirds found in many parts of the U.S. They have been observed eating berries, cherries, live worms, and sp
Alenkinab [10]

Answer:b

Omnivore and predator

Step-by-step explanation:

4 0
2 years ago
PLEASE HELP ILL MARK BRAINLY!!!!!!!!
BaLLatris [955]

Answer:

2

Step-by-step explanation:

7 0
3 years ago
Would like some help please
babunello [35]
2 is your answer! Snznzbsbsbdnd
6 0
3 years ago
Read 2 more answers
Please help, if you can’t answer all just answer one
Natali5045456 [20]

Answer:

Inverses

Step-by-step explanation:

One things I could tell about the earth from this graph is that the northern and southern hemispheres are inverses because when the temp of one goes up over the months, the other goes down.

3 0
3 years ago
Other questions:
  • The mean GPA in a class of 14 students is 3.12. One student, whose GPA is 2.41, drops the class. Two new students, whose GPAs ar
    14·1 answer
  • Which statement is true ?
    9·1 answer
  • The measure of an angle is 3/4 of 60 degrees. What is the measure of the complementary angle?
    14·2 answers
  • Solve -7/2=-28 please solve and show work
    14·1 answer
  • Somebody help me with this?
    8·1 answer
  • Rewrite the expression by using grouping symbols.
    12·1 answer
  • Ismail tried to prove that sin(θ) = cos(90°− θ) using the following diagram. His proof is not correct.
    9·1 answer
  • PLEASE HELP, this is overdue and I'm struggling. In triangle EFG, E(-2, 7), F(7, -8) and G(-6, -3). Is triangle EFG a right tria
    5·2 answers
  • Help please, don’t understand this.
    6·1 answer
  • (1/2)x x 3/43=<br><br><br> Pls im so close for finishing 20 POINTS
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!