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
EleoNora [17]
4 years ago
15

Stacy decided that she would start doing sit ups every day. Her plan each day was to do twice as many sit ups as she had done th

e day devote. If Stacy did two sit up one day, how many total sit ups would she have done after five days?
Mathematics
1 answer:
Whitepunk [10]4 years ago
8 0

Answer:

Day five= 32 sit ups

Step-by-step explanation:

Day 1= 2 sit ups

Day 2= 4 sit ups

Day 3= 8 sit ups

Day 4= 16 sit ups

Day 5= 32 sit ups

You might be interested in
Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

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

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
4 years ago
Read 2 more answers
This is the last problem, Math was never my best subject ^^´´.<br> Please And Thank Youu!
Lady_Fox [76]

Answer:

  • 15t +45 = 120
  • 5 hours

Step-by-step explanation:

Let t represent the number of hours of lessons Audrey can take. Then 15t will be the cost of the lessons. Her total cost will be ...

  15t +45 = 120 . . . an equation

  15t = 75

  t = 5

Audrey can afford 5 hours of lessons.

5 0
4 years ago
Read 2 more answers
Find X please..............
Rasek [7]
What x please explain for help
5 0
4 years ago
A bread recipe calls for 1/4 tsp of salt. How much salt is needed to make 6 loaves of bread?​
Illusion [34]

Answer:

1 1/2 tsp

Step-by-step explanation:

6 0
3 years ago
Riley has a fish tank in the shape of a rectangular prism like the one shown.
coldgirl [10]

Answer:

70

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the equation of the line perpendicular to y=−2 that passes through the point (4, −2).
    15·1 answer
  • Which ones are polygons?
    5·2 answers
  • Solve.
    14·1 answer
  • Find the simple interest on $8,000 at 4% interest for 2.5 years?
    7·1 answer
  • 150=3/5x what does x equal?
    10·2 answers
  • I need help Solve this for me
    6·1 answer
  • 3x + x + x + x − 3 − 2 = 7 + x + x In the equation above, what is the value of x?
    7·1 answer
  • I need help!!!!!!!!!!!!!!! 10 points <br><br> Can someone make me not bored. Please
    7·1 answer
  • (x+4)^2 - (x-6)^2 - (x-1)*(x+1)
    8·1 answer
  • −5/6e−2/3e=−24 solve for e
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!