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
labwork [276]
3 years ago
12

a boy had to save 12.40 to buy a new shirt. what percent of the needed amount had he saved when he had 7.75

Mathematics
1 answer:
Eduardwww [97]3 years ago
8 0
7.75 / 12.40 = 0.625 (100) = 62.5%
You might be interested in
Which statement about the slope of the line is true?
creativ13 [48]
A straight line has the same gradient all along its length. The gradient equals vertical rise over horizontal distance. It does not matter which triangle you use.
For large triangle it equals 2/8 or 1/4 for smaller one.  Both equal 1/4 (last statement)
8 0
3 years ago
A jumping spider's movement is modeled by a parabola. The spider makes a single jump from the origin and reaches a maximum heigh
Arte-miy333 [17]

Answer:

Step-by-step explanation:

Download docx
8 0
3 years ago
What are the solutions to x^2-5x+3=0?
Viktor [21]

Answer:

Step-by-step explanation:

You need to use the quadratic equation

x =  \frac{-b +/- \sqrt{b^2 - 4ac} }{2a}

Givens

  • a = 1
  • b = - 5
  • c = 3

x = \frac{5 +/- \sqrt{5^2 - 4a*1*3} }{2} \\

x =( 5 +/- sqrt(25 - 12) ) / 2

x = (5 +/- sqrt(13) )/2

x = (5 + sqrt(13) / 2

x = 4.303  rounded

x = (5 - sqrt(13) ) /2

x = .6972

4 0
3 years ago
4 lines extend from point E. A horizontal line extends to the left to point A and a vertical line extends up to point C. Another
lord [1]

Answer:

m∠CEB = 45°

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A bacteria colony increases in size at a rate of 4.0581e1.6t bacteria per hour. If the initial population is 36 bacteria, find t
Harrizon [31]

Answer:

1560

Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

\frac{dP}{dt} =4.058e^{1.6t}

dP =4.058e^{1.6t}}dt\\Taking\: Integrals\\\int dP =4.058 \int e^{1.6t}dt\\P(t)=\frac{4.058}{1.6} (e^{1.6t} +K)\\P(t)=2.53625 (e^{1.6t} +K)

Where k is a constant of Integration.

At t=0, P(t)=36

36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19

Therefore:

P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560

3 0
3 years ago
Other questions:
  • Every week, Mr. Kirkson uses 316 gallon of water to water every 13 square foot of his garden. How many gallons of water does Mr.
    10·2 answers
  • If the measure of angle 5 is (11x- 14) and x=6, which expression could represent the measure of angle 2?
    15·2 answers
  • Bernie's car used 100 cups of gasoline during a drive he paid 3.12 per gallon for gas how much does it gas cost
    5·1 answer
  • PLZZZ HELPP 3+7 - 1/2 is an example of
    10·2 answers
  • There are 35 students in the drama club. 2 out of every 5 students in the club are boys. How many students in the club are boys
    9·2 answers
  • Help please my parents said if I get good grades they were going to buy me a phone for Christmas please help
    14·2 answers
  • Which statement best describes the product of 2/3 and 3/5?
    15·1 answer
  • What is the equation of the line that passes through the point (- 1, - 5) and has a slope of -1
    6·2 answers
  • PLEASE HELPPP!! <br> Solve the system of equations.
    12·1 answer
  • find the surface area a planet if its circumference is about 18,000 miles long. Round to the nearest thousand square miles
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!