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
Alja [10]
3 years ago
11

Mary, Amy, and Kim babysit. Last week, Kim earned 7.50 dollars more than Mary, and Amy earned twice as much as Kim. If Mary earn

ed 12.80 dollars, how much did Amy and Kim earn ​
Mathematics
2 answers:
AveGali [126]3 years ago
7 0

Answer: Kim has 20.30 Amy has 40.60

Step-by-step explanation:

ANEK [815]3 years ago
4 0

Answer:

Kim earned $20.30 and Amy earned $40.60

Step-by-step explanation:

Im just built different

You might be interested in
3a b2 b3 4b2 4 5a what is the answer
Otrada [13]
Is there a piece of paper that comes with the questions? Or do I just pick one? If there is a piece of paper attached, please add it to your question. Thank you!
7 0
3 years ago
Stanley is reading a 224-page book. There are illustrations on 14 pages. If Stanley opens the book at random, what is the probab
likoan [24]
It will be 0.0625 because you can use a calculator and do 14/224
5 0
3 years ago
Points E, F, and D are on circle C, and angle G measures 60°. The measure of arc EF equals the measure of arc FD.
galben [10]

Answer:

∠EFD ≅ ∠EGD ⇒ A

Arc ED ≅ arc FD ⇒ C

m arc FD = 120° ⇒ E

Step-by-step explanation:

Let us revise some facts

  1. Equal chords subtended equal arcs
  2. The measure of an inscribed angle is one-half the measure of the central angle which subtended by the same arc
  3. The measure of a central angle is equal to the measure of its subtended arc
  4. If one angle of an isosceles triangle measure 60° then the triangle is equilateral
  5. The sum of the measures of the interior angles of any quadrilateral is 360°

In the quadrilateral  CDGE

∵ m∠G = 60°

∵ m∠GDC = m∠GEC = 90°

- By using the 5th rule above

∴ m∠G + m∠GDC + m∠DCE + m∠GEC = 360°

∴ 60 + 90 + m∠DCE + 90 = 360

∴ 240 + m∠DCE = 360

- Subtract 240 from both sides

∵ m∠DCE = 120°

In circle C

∵ ∠DCE is a central angle subtended by arc DE

∵ ∠DFE is an inscribed angle subtended by arc DE

- By using the 2nd rule above

∴ m∠DFE = \frac{1}{2} m∠∠DCE

∵ m∠DCE = 120°

∴ m∠DFE = \frac{1}{2} (120)

∴ m∠DFE = 60°

- That means ∠EFD ≅ ∠EGD because their measure is 60°

∴ ∠EFD ≅ ∠EGD

In Δ EFD

∵ EF = FD

∵ m∠DFE = 60°

- By using the 4th rule above

∴ Δ EFD is an equilateral triangle

∴ ED = FD = FE

In circle C

∵ Side ED subtended by arc ED

∵ Side FD subtended by FD

∵ Side ED ≅ side FD ⇒ proved

- By using the 1st rule above

∴ Arc ED ≅ arc FD

∵ m∠ECD = 120°

∵ ∠ECD is a central angle subtended by arc ED

- By using the 3rd rule above

∴ m∠ECD = m arc ED

∴ m of arc ED = 120°

∵ Arc ED ≅ arc FD

∴ m arc ED = m arc FD

∴ m arc FD = 120°

5 0
2 years ago
Read 2 more answers
Can someone explain how to get the answer if do 5 stars and have good rating
8_murik_8 [283]

Answer:

3:1

Step-by-step explanation:

We know that the number of students who prefer cheese AND vegetable pizza is 16 cheese + 2 vegetable = 18 combined

We also know that the number of students who prefer sausage AND pepperoni pizza is 3 sausage + 3 pepperoni = 6 combined

If we take the ratio between these figures, this ratio would be 18:6 (read as 18 to 6) which simplifies to 3:1 (read as 3 to 1).

5 0
2 years ago
Read 2 more answers
Two consecutive numbers that equal 25?
erma4kov [3.2K]

12345678910111213

12 and 13 are consecutive numbers

12+13=25

hence, 12 and 13 are your answers

8 0
3 years ago
Read 2 more answers
Other questions:
  • Excerpt from a school newspaper:
    13·2 answers
  • Sam is shopping for a new pairs of shoes. On Monday the shoes were on sale for %40.00, but because they became popular, by Satur
    7·2 answers
  • 40,000 is 10 times as much as
    12·2 answers
  • Colton and his children went into a movie theater and he bought
    10·1 answer
  • Tami would like to withdraw $10,364.10 at the end of each year, for 10 years, from an account paying 2.3% compounded annually. D
    12·2 answers
  • Help me with this - Label the origin, X-axis, and y-axis.
    7·2 answers
  • ***ANSWER PLS***
    9·2 answers
  • A recipe that uses 1/2 pound of almonds makes 5/6 cup of almond butter.
    14·2 answers
  • 1.<br> In the equation below, what is the value of x<br> 20=x+(2 x 8) - 6
    14·1 answer
  • Sanford's gym coach made him run 20 laps on a 400 m track. How many kilometers did he run? How many miles?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!