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
Finger [1]
3 years ago
11

How can you use doubles when multiplying with 4 to find 4x8

Mathematics
1 answer:
pshichka [43]3 years ago
4 0
4 = 2 * 2

Multiplying by 2 is the same a doubling.
Since 4 is 2 * 2, to multiply a number by 4, double the number twice.

Example:
What is 4 * 100?
Double 100 to get 200.
Double 200 to get 400.
Therefore, 4 * 100 = 400.
By doubling twice, we do the same as multiplying by 4.
You might be interested in
45x+5y - 56+67 - 29 × 37=​
Ber [7]

Answer:

45x+5y-10632

Step-by-step explanation:

45x+5y-56+67-29*37

45x+5y+11-1073

45x+5y-10632

I hope I am right

sorry if it is actually wrong

7 0
3 years ago
How many 2/3 foot pieces can Wendy cut from the 51/3 feet of ribbon
Katen [24]

You would divide 51 by 2 to get the answer, as the units are the same, for an answer of 25 two-thirds foot sized pieces, with 1 as a remainder.

3 0
3 years ago
A workbench for a motorcycle is in the shape of parallelogram IJKL. The motorcycle is
VladimirAG [237]

Answer:

J and K are supplementary

Step-by-step explanation:

Given

The attached image

Required

The true statement

From the attached image, it is hard to determine the values of angles I and L as there are no enough information to determine their values.

However, J and K can be worked easily.

From the image

J = 65^o --- vertically opposite angles

And:

K + 65^o = 180^o ---- angle on a straight line

Substitute: J = 65^o

K + J = 180^o

When two angles add up to 180, the angles are supplementary.

<em>Hence, (c) is correct</em>

6 0
3 years ago
Find the approximate value of the circumference of a circle with the given radius. use = 3.14. round your results to one more de
sveta [45]
The circumference of the circle is about 25.12 inches. Hope it help!
4 0
3 years ago
20 apartments on 4 floors = apartments per floor
IRISSAK [1]

Answer:

5

Step-by-step explanation:

Take 20, and divide it by 4.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A withdrawal of $50 is negative or positive?
    15·2 answers
  • Each day, Tally's baby sister eats 1 4 cup of rice cereal in the morning and 1 4 cup of rice cereal in the afternoon. Select the
    7·1 answer
  • What value of satisfies the equation 2n-3(4n+5)=-6(n-3)-1
    8·1 answer
  • What type of number results when a negative number is multiplied by a positive number and vice versa?
    11·2 answers
  • How might 2,197 be written as a base number with exponent?
    9·2 answers
  • Can a polyhedron have 4 faces, 5 vertices, and 8 edges? Explain.
    14·1 answer
  • 25<br> % of <br> 401.16<br> m<br> Give your answer rounded to 2 DP
    12·2 answers
  • A circle has an area of 9. What is the circumference?
    7·1 answer
  • 50 POINTS
    8·2 answers
  • PLEASE HELP ME SO I CAN MOVE ON FROM THIS TOPIC
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!