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
Debora [2.8K]
3 years ago
11

How do you explain mental math to multiple two numbers

Mathematics
1 answer:
Fantom [35]3 years ago
7 0
When multiplying two numbers, a person can mentally add one of those numbers the other number amount of times.
You might be interested in
What is the value of y?
Xelga [282]

Answer:

y = 54

Step-by-step explanation:

We know the sum of the angles of a triangle are 180

72+y+y = 180

Combine like terms

72 + 2y = 180

Subtract 72 from each side

72-72 +2y = 180-72

2y = 108

Divide each side by 2

2y/2 = 108/2

y = 54

7 0
3 years ago
What is the Best approximation for the perimeter of a Semi circle with a diameter of 64 m
VLD [36.1K]

Answer:

164.848 m

Step-by-step explanation:

3 0
3 years ago
HELP! ASAP!<br> What is the measure of ∠A?<br><br><br> What is the measure of ∠B?
olganol [36]
The opposite angles of a parallelogram are equal.
Therefore
m∠A = m∠C, so that
5y - 3 = 3y + 27
Subtract 3y from each side.
5y - 3y - 3 = 3y - 3y + 27
2y - 3 = 27
Add 3 to each side.
2y - 3 + 3 = 27 + 3
2y = 30
y = 30/2 = 15

Therefore
m∠A = 5*15 - 3 = 72°
m∠C = 72°

Let x = m∠B
Then x = , m∠B = m∠C
Because the sum of the angles in the parallelogram is 360°, therefore
x + x + 72 + 72 = 360
2x = 360-144 = 216
x = 216/2 = 108

Answer:
m∠A = 72°
m∠B = 108°

3 0
3 years ago
Read 2 more answers
Name the intersection of AE and CG
Pavel [41]
Is the supposed to be a image
4 0
2 years ago
A hairstylist earns a 25% commission on each haircut she does. One customer received a $35 haircut and gave the stylist an 18% t
mina [271]
The answer for this one is 10.33
8 0
3 years ago
Other questions:
  • What is the value of x in the given circle? please help!!!!
    13·1 answer
  • Ten less than a number cubed
    8·1 answer
  • in the football stadium, there are 56,244 seats.There are 48,889 tickets sold for saturday's game.How many seats will be on satu
    7·2 answers
  • Which of the following integrals will find the volume of the solid that is formed when the region bounded by the graphs of y=e^x
    6·1 answer
  • Find x.
    7·1 answer
  • Please Help!! Find X I will give brainliest!!!
    14·1 answer
  • Marking brainliest for best answer and extra points
    8·2 answers
  • Find the area of the composite figure.
    9·1 answer
  • Add 3.8 + (-0.6) . Plot the first addend and the sum on the number
    14·1 answer
  • I need help figuring out the answer … I’m confused
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!