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
Pie
3 years ago
14

What is three quarters of 7 hours

Mathematics
2 answers:
AURORKA [14]3 years ago
6 0

Answer:

56

Step-by-step explanation:

SpyIntel [72]3 years ago
5 0
5 hours and 15 minutes
You might be interested in
The populations of termites and spiders in a certain house are growing exponentially. The house contains 120 termites the day yo
zysi [14]

Answer:

in order to triple the inicial population of spiders, will take 50395 days

Step-by-step explanation:

we can define the termite population function as T(t) and the one for spiders as S(t) , where t represents time measured in days

since both have and exponencial growth

T(t)= a*e^(b*t)

S(t)= c*e^(d*t)

1) when the day the person moves in , t=0 and T(0)= 120 termites

T(0) = a*e^(b*0) = a = 120

2) after 4 days , t=4 and  the house contains T(4) = 210 termites

T(4)= 120*e^(b*4) = 210 → 4*b = ln (210/120) → b = (1/4)* ln(210/120)= 0.14

therefore

T(t) = 120*e^(0.14*t)

3) 3 days after moving in , t=3, there were T(3) = 120*e^(0.14*3)=182.63≈ 182 termites . The number of spiders is half of the number of termites → S(3) = T(3) * 1 spider/ 2 termites  =91.31 spiders ≈ 91 spiders

4) after 8 days of moving in , t=8, there were T(8) = 120*e^(0.14*8)=367.78≈ 368 termites . The number of spiders is 0.25 times the number of termites → S(8) = T(8) * 1 spider/ 4 termites =91.94 spiders   ≈ 92 spiders

from

S(t)= c*e^(d*t) → d = ln [S (tb)/S (ta) ] / (tb-ta)

therefore d = ln [ S(8)/S(3) ] / (8 - 3 ) = 2.18*10^-5

in order to triple the initial population

S(t3) = 3 *S(0) = 3*[c*e^(d*0)] = 3*c

S(t3) = c*e^(d*t3) = 3* c → t3 = ln(3) / d = 50395 days

5 0
3 years ago
How can bar diagrams be used to model numerical expressions
vesna_86 [32]
A bar diagram can be used to represent algebraic expressions or to give examples.
5 0
3 years ago
Read 2 more answers
Which statement is true about the function f(x)= -x?
Oxana [17]

Answer:

Step-by-step explanation:

The domain of the graph is all real numbers.

8 0
3 years ago
Read 2 more answers
Please can anyone help me?
hoa [83]
i’m pretty sure the answer would be 1) linear :D
6 0
3 years ago
Read 2 more answers
A rectangular prism has a volume of 572 cubic inches. The prism is 4 inches long and 13 inches wide. What is the height of the p
Leya [2.2K]

Answer:

Height of rectangular prism = 11 inches

Step-by-step explanation:

Given that:

Volume of rectangular prism = 572 cubic inches

Length of prism = 4 inches

Width of prism = 13 inches

Volume of prism = Length * Width * Height

572 = 4 * 13 * h

572 = 52h

52h = 572

Dividing both sides by 52

\frac{52h}{52}=\frac{572}{52}\\h=11

Hence,

Height of rectangular prism = 11 inches

4 0
3 years ago
Other questions:
  • A recipe used 1/4 cup of sugar for every 2 teaspoons of cocoa.
    14·1 answer
  • Rewrite the expression with the given base. 25^3x with a base of 5
    6·2 answers
  • I need help or I fail 7th grade
    7·1 answer
  • Which sets of measurements could be the interior angle measures of a triangle?
    7·1 answer
  • A cylinder have a radius of 10 and a height of 8 what is the exact volume of the cylinder
    14·2 answers
  • Right Triangles I been having trouble with gemotrey lately ​
    10·1 answer
  • X2 + 2x - 3= 5
    7·1 answer
  • Y = 2x + 1<br> y = -2x + 1<br> y = -2x - 0.5<br> y = 2x - 0.5
    7·1 answer
  • Can someone help me?
    15·2 answers
  • Oliva has a shoe box in
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!