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
leva [86]
2 years ago
12

7. After 8 months, Joellen has lost 75 pounds. This is a 30% decrease in her starting weight. Find

Mathematics
1 answer:
VARVARA [1.3K]2 years ago
4 0

Answer:

Started 100% = x pounds

30% = 75 pounds

x= 75*100÷30= 250 pounds

Starting Weight = 250 pounds

You might be interested in
Is 300 greater than 8/9?
koban [17]

Answer:

yes.

Step-by-step explanation:

300>8/9

300>0.888888889

8 0
2 years ago
Read 2 more answers
If C(x) is the total cost incurred in producing x units of a certain commodity, then the average cost of producing x units of th
nataly862011 [7]

Answer:

x  =  2000 cameras

Step-by-step explanation:

C(x)     Total cost in producing  x units

C- = C(x) /x   Average cost of producing x units    x > 0

Cannon Precision Instrument

C (x)   Total monthly cost for producing x units of M1 cameras

is    C(x)  =  0.0025x²  + 80x  +  10000

Then average cost of producing x cameras M1 is

C-(x)  =  ( 0.0025x²  + 80x  +  10000)  /x

C-(x)  =   0.0025x  + 80  + 10000/x

Taking derivatives on both sides of the equation

C-´(x)   =  0.0025   -  10000/x²

Then

C-´(x)   = 0

( 0.0025x² - 10000 ) / x²   =  0

0.0025x² - 10000 =  0

x²  =  10000 /0.0025         x²  = 4000000

x  =  2000 cameras

8 0
3 years ago
Which equation creates an infinite number of solutions when solved for a system with <img src="https://tex.z-dn.net/?f=y%3D8x-9"
Tatiana [17]

Answer:

d) 4y − 32x = -36

Step-by-step explanation:

If there are an infinite number of solutions, the equations represent the same line.

y = 8x − 9

y − 8x = -9

4y − 32x = -36

6 0
3 years ago
Read 2 more answers
a chord is drawn 3 cm away from the centre of a circle of radius 5 cm. calculate the length of the chord​
lara [203]

Answer:

8 cm

Step-by-step explanation:

the 3 cm line from the chord to the center of a circle is a leg of a right triangle which perpendicularly bisects the chord into two equal halves

draw the hypotenuse of the right triangle from the center of the circle to the endpoint of the chord. This is a radius measuring 5 cm.

find the missing leg of the right triangle

a^2= c^2- b^2

a^2= 25-9

a^2=16

a=4

this is only the measurement of half the chord. To find the full length of the chord multiply by two

4*2=8 cm

7 0
3 years ago
Given the data set (200,150,325,100,75) find the mean of the data set
Nina [5.8K]
To find the mean (average), u add up all the numbers, then divide by how many numbers there are.

(200 + 150 + 325 + 100 + 75) / 5 = 850/5 = 170 <== the mean
7 0
3 years ago
Other questions:
  • In the expression 12a + 5, identify the coefficient.
    11·1 answer
  • I need help solving this:<br><br>y+8x=4
    7·2 answers
  • You draw one card from a shuffled standard deck of cards (cards are in four suits —red diamonds, red hearts, black clubs, and bl
    13·1 answer
  • What will it cost to carpet a rectangular floor measuring 27 feet by 21 feet if the carpet costs $28.77 per square yards.
    5·1 answer
  • HELP!! which is the measure of wx shown in the diagram below
    14·2 answers
  • -3x - 8 = 50<br> Anyone know how to solve this by elimination?
    6·2 answers
  • How many grams are there in 3.4 x 1024 atoms of helium (He)?
    10·1 answer
  • For Exercises 35–48, identify p, q, and r if necessary. Then translate each argument to symbols and use a truth table to decide
    11·1 answer
  • A map is drawn with a scale of 1 inch = 15 miles. Nicole measured the distance to the next town as 3 inches. How many miles does
    12·1 answer
  • Is 3n a cubic a quadratic a linear or none of these​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!