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
klasskru [66]
3 years ago
6

What is 80% of 400 please help me

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
3 0

80% means 0.80 .
"of" in math almost always means "times".

"80% of 400" means (0.80 x 400).  That's  320 .

You might be interested in
Indicate the equation of the line through (2, -4) and having slope of 3/5.
Kamila [148]
Y = mx + b

y = 3/5(x) + b

-4 = 3/5(2) + b

-4 = -2.4 + b

b = -4 + 2.4

b = -1.6 (-8/5)

y = 3/5x - 8/5.
4 0
3 years ago
Read 2 more answers
The Sun hits a 30 foot flagpole at a 60° angle and casts an unobstructed 52 foot shadow. If a building is built 32 feet away, wh
aivan3 [116]

Answer: 11.5 ft

Step-by-step explanation:

The length of the shadow of the building = length of the shadow - distance of the building

= 52 - 32

= 20

Let the height the shadow strike the side of the building be h

then by similar shape rule

h / 20 = 30 / 52

52h = 30 x 20

52h = 600

h = 600/52

h = 11.53846154

h ≈ 11.5

3 0
3 years ago
What is the sum of the seven smallest composite numbers which cannot be determined to be composite simply by using the divisibil
ale4655 [162]

Answer:

63

Step-by-step explanation:

A composite number is a whole number. It can be defined as a number that is divisible by 1, itself and other factors. This means a composite number has two or more factors. A prime number cannot be a composite number.

The seven smallest composite numbers are:

4, 6, 8, 9, 10, 14, 16,

Their total sum = 4 + 6 + 8 + 9 + 10 + 14 + 16 = 63

Therefore, the sum of the seven smallest composite numbers which cannot be determined to be composite simply by using the divisibility rules (for 2,3,4,5,6,8,9 or 10) is 63.

8 0
3 years ago
Read 2 more answers
Which statement is true about parallel lines?
Ratling [72]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
How do I solve this for a and b? 7/b-36=a/72=28/b
Kamila [148]
7/(b-36)=28/b
28b-1008=7b
21b=1008
b=48
a/72=28/b
a=72x28/48
a=42
4 0
4 years ago
Read 2 more answers
Other questions:
  • 6.79x10 to the second power written in standard form
    7·1 answer
  • What is the answer to that
    15·1 answer
  • A winter jacket cost $200. It is on sale for 30% off when you have a coupon to save another 20%. How much do you have to pay for
    13·2 answers
  • The Pirerras are planning to go to Europe 3 years from now and have agreed to set aside $140/month for their trip. If they depos
    8·1 answer
  • Match each sequence below to statement that BEST fits it.
    8·1 answer
  • Help me please <br> 12y-8=30.4
    5·1 answer
  • If you answer this question I will give you brainest (if you don’t know don’t answer) no links or else report
    9·2 answers
  • If the diagonal of a square is 11.3 what is the perimeter
    7·1 answer
  • What is the value of a3 in the sequence? 2, 5, 10, 17,. 2 5 10 17.
    9·1 answer
  • Rewrite the equation in Ax+By=C form.Use integers for A, B, and C.y-4=6(x-6)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!