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
saul85 [17]
2 years ago
10

18 x 5 Use mental math to solve. Find as many strategies as you can to solve. Record and describe each strategy.

Mathematics
1 answer:
Sophie [7]2 years ago
3 0

Answer:

Here are a few ways that I do that:

18 * 5 is the same as (10 + 8) * 5, which equals 50 + 40, which is 90

It's also the same as (20 - 2) * 5, which equals 100 - 10, again, 90

It's also 9 * 2 * 5, which equals 9 * 10, or 90

It's also 3 * 6 * 5, or 3 * 30, which is 90.

You might be interested in
WILL VOTE BRAINLIEST PLEASE HELP!
DanielleElmas [232]
A.) is the correct answer.
7 0
3 years ago
The time it takes you to get to campus varies inversely as your driving rate. averaging 20 miles per hour in terrible​ traffic,
Korvikt [17]
Given that the time taken to get to campus is inversely proportional to driving rate, let the time be t and rate be r, thus the function will be written as:'
t=k/r
where
k is the constant of proportionality given by:
k=tr
when r=20 mph, t=1.25 hrs
thus
k=20×1.25
k=25 miles
thus the formula is:
t=25/r
when r=55 mph, the value of t will be:
t=25/55
t=5/11 hours

3 0
3 years ago
Among all pairs of numbers with a sum of 238238, find the pair whose product is maximum. Write your answers as fractions reduced
mylen [45]

Answer:

x=119119,\;\;\;y=119119

Step-by-step explanation:

Let the x be the first number, y be the second number and p be the product of the first and second number.

i.e  x+y=238238   \Rightarrow x=238238-y

      p=xy

   \Rightarrow p=(238238-y)y\\\Rightarrow p=238238y-y^2

\Rightarrow \frac{dp}{dy} =238238-2y\\\Rightarrow 0=238238-2y\\\Rightarrow 2y=238238\\\Rightarrow y=119119

Now,

x=238238-119119\\\\ \Rightarrow x=119119

Hence, x=119119,\;\;\;y=119119

   

8 0
2 years ago
How do i round 8.544 to the nearest hunderdth
mario62 [17]
8.54. The last number is low so it can not round up to 5
5 0
3 years ago
Read 2 more answers
Can someone help I have a picture ?
aleksklad [387]

Answer:

Yes! Wheres the pic? I'll awnser in the comments on this!

4 0
3 years ago
Other questions:
  • R=8.4mi find the Circumference to the nearest 10th with pi being 3.14
    9·1 answer
  • 20baskets into 4minutes
    15·1 answer
  • A(n) ________ requires member nations to harmonize their tax, monetary, and fiscal policies and create a common currency. common
    8·1 answer
  • A fraction is less than 1. Choose a counterexample that will prove this conjecture false​
    14·1 answer
  • What is the area of a piece of plywood that is 8 2/5 feet by 3 1/8 feet
    9·1 answer
  • In an arithmetic​ sequence, the nth term an is given by the formula an=a1+(n−1)d​, where a1 is the first term and d is the commo
    11·1 answer
  • PLZZZ HELP ME WITH THIS TWO.DUE TODAY!!Sorry if being annyoing its jusr have lot work​
    15·2 answers
  • Identify the property illustrated for the following:<br><br> 3(x + 2) = 3x + 6
    13·1 answer
  • Rhianna has already knit 24 centimeters of scarf, and can knit 1 centimeter each night. How
    7·1 answer
  • Thomas has a train collection. He was given 1 train as a gift, and he adds 2 trains per year. Which of the graphs below represen
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!