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
Dmitriy789 [7]
3 years ago
9

63x19 estimate and choose method

Mathematics
2 answers:
allsm [11]3 years ago
7 0

Answer:

1197

Step-by-step explanation:

63 x 19 = 1197

Can you mark me brainliest

Anuta_ua [19.1K]3 years ago
4 0

Answer:

1200 would be an estimate

Step-by-step explanation:

Rounding to the nearest 10's digits would be a method of estimation. For example, in this case, 63 would round down to 60 and 19 would round up to 20 for a quick estimate. 60 times 20 = 1200

You might be interested in
Please Help !!!
solong [7]
Best Answer: 2 LiCl = 2 Li + Cl2
mass Li = 56.8 mL x 0.534 g/mL=30.3 g
moles Li = 30.3 g / 6.941 g/mol=4.37
the ratio between Li and LiCl is 2 : 2 ( or 1 : 1)

moles LiCl required = 4.37
mass LiCl = 4.37 mol x 42.394 g/mol=185.3 g


Cu + 2 AgNO3 = Cu/NO3)2 + 2 Ag
the ratio between Cu and AgNO3 is 1 : 2
moles AgNO3 required = 4.2 x 2 = 8.4 : but we have only 6.3 moles of AgNO3 so AgNO3 is the limiting reactant
moles Cu reacted = 6.3 / 2 = 3.15
moles Cu in excess = 4.2 - 3.15 =1.05

N2 + 3 H2 = 2 NH3
moles N2 = 42.5 g / 28.0134 g/mol=1.52
the ratio between N2 and H2 is 1 : 3
moles H2 required = 1.52 x 3 =4.56
actual moles H2 = 10.1 g / 2.016 g/mol= 5.00 so H2 is in excess and N2 is the limiting reactant
moles NH3 = 1.52 x 2 = 3.04
mass NH3 = 3.04 x 17.0337 g/mol=51.8 g
moles H2 in excess = 5.00 - 4.56 =0.44
mass H2 in excess = 0.44 mol x 2.016 g/mol=0.887 g
5 0
4 years ago
You ask a friend to think of a number feom two to twelve. What is the probability that his numberwill ne 4?
antiseptic1488 [7]
The probability that his number will be 4 is one in eleven, or 1/11.
4 0
3 years ago
Read 2 more answers
Graph this compound inequality 2.5 is equal to or less than x is equal to or less than 4.5
Oxana [17]

Graph this compound inequality 2.5 is equal to or less than x is equal to or less than 4.5

2.5 <= x < = 4.5

We graph this inequality using number line.

Here x lies between 2.5  and 4.5

While graphing, we start with closed circle at 2.5 because we have equal symbol .

Then shade till 4.5. Use closed circle at 4.5.

The graph is attached below.


5 0
3 years ago
Read 2 more answers
What is the math for 4×(5+2) ?​
Rzqust [24]

Answer:

28

Step-by-step explanation:

since the 5+2 is in parenthesis(don't know how to spell it its these things >( ) if you didn't know) you have to do 5+2 1st so thats 7 then you do 4*7 which is 28

8 0
3 years ago
Approximate 218.16 to the nearest tens.
luda_lava [24]
218.16 to the nearest tenth would be 218
3 0
2 years ago
Other questions:
  • If you answer the question correctly I will give you brainliest
    12·1 answer
  • Evaluate x3 - 3y when x = -3 and y = 4.
    6·2 answers
  • Uhhhhh help its on square roots and idk anything about square roots
    8·1 answer
  • Solve for the given time.
    6·2 answers
  • Can anyone please help!!!!<br>QUESTION ATTACHED TO PICTURE
    13·1 answer
  • Which of the following is not an inequality?
    6·2 answers
  • the radius of the base of a right cylinder is 12 cm and the height and the height of the cylinder is 18 cm. in terms of pi what
    7·1 answer
  • Geometry, dont need explanation. Just those 3 questions.
    10·1 answer
  • Bernice wants to buy two
    13·2 answers
  • Which of the functions below indicates a graph that has been vertically shifted by 3 units?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!