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
Zina [86]
3 years ago
5

Explain when to use Mental Math

Mathematics
1 answer:
I am Lyosha [343]3 years ago
3 0
It is best to use mental math with some equations (5x5 or something that is easy enough that work does not have to be shown 10 dived by 5
You might be interested in
Write two ways to group and add 2+3+4
Tresset [83]
1. 5+4
2. 7+2

The answer is 9.

I hope I helped! :)
5 0
3 years ago
Read 2 more answers
If m L=65, then m LJK=___ ????? PLS HELP ASAP
aleksandr82 [10.1K]

Answer:

50 degrees

Step-by-step explanation:

If angle L = 65 then the top angle for the triangle LMJ has to be 25 degrees as M is a right angle (or at least has to be for this problem to be possible)

the math to figure it out is 90+65+x=180 <-- due to triangles are 180 degrees inside which simplifies to 25 after that you just have to at 25 to itself 25+25 to get 50 which is the angle of J

4 0
2 years ago
What is 35÷ into 7,140
sveta [45]
 the answer to 35 divided by 7,140=490196078
5 0
3 years ago
Read 2 more answers
Find the indicated IQ score. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with
larisa86 [58]

Based on the mean, standard deviation, and the graph, the indicated IQ score would be 115.

<h3>What is the indicated IQ score?</h3>

First, find the z value:

P(Z<z) = 1 - tail value

= 1 - 0.1587

= 0.8413

According to the z-value, this gives a value of:

z = 1

The indicated IQ score is:

= mean + z value z standard deviation

= 100 + 1 x 15

= 115

Find out more on normal distributions at brainly.com/question/4079902

#SPJ1

5 0
2 years ago
winthrop has $4.40 worth of nickles and dimes. If winthrop has 3.5 times as many nickles as he has dimes, how many dimes does he
Aneli [31]

Answer:

16

Step-by-step explanation:

If n is number of nickles and d is number of dimes:

5n + 10d = 440

n = 3.5d

Substitute:

5(3.5)d + 10d = 440

17.5d + 10d = 440

27.5d = 440

d = 16

6 0
3 years ago
Other questions:
  • Mary chooses an integer at random from 1 to 6. What is the probability that the integer she chooses is a prime number?
    7·1 answer
  • 48% of the children in a summer camp are boys. If there are 1536 boys, how many children are there in the
    13·1 answer
  • Write an equation that is parallel to the line y=3x-5 and passes through the point (-1,2)
    7·1 answer
  • Which is not an equation of the line going through (6 7) and (2 -1)
    7·1 answer
  • If a population of dolphins increases at a constant rate of 1.5% every year for 20 years what will be the total percentage incre
    15·1 answer
  • What is the sum of 76.35, 49.00, 42.30, and 312.95?
    11·2 answers
  • HELP!
    8·1 answer
  • What order do I put it in?
    13·1 answer
  • Luis is making quilts for sewing class. He will use 21 yards of yellow fabric, 10.2 yards of green
    14·1 answer
  • kerri said that the quotient of 4.2/5 is about 8 tenths because 4.2/5 is close to 40 tenths /5 do you agree with Kerris reasonin
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!