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
saw5 [17]
3 years ago
13

Barbara charges $3.50, plus $2.25 for each hour she babysits. If Barbara charges $21.50, how many hours does she babysit?

Mathematics
1 answer:
MAVERICK [17]3 years ago
8 0

Answer:

8 hours

Step-by-step explanation:

The equation is 2.25X + 3.50 = 21.50

X represents the unknown amount of hours she worked. 2.25 is the cost per hour. 3.50 is the fee she charges for every gig. That fee only happens once a gig so naturally it wasn't the number x was placed with.

2.25X + 3.50 = 21.50

2.25X + 3.50 - 3.50 = 21.50 - 3.50

2.25X = 18

<u>2.25X</u> = <u>1</u><u>8</u>

2.25 2.25

X = 8

You might be interested in
2. What unit of measure would you use for the volume of water in a bathtub?
JulsSmile [24]

2. You would use liters for a bathtub.

3.You would use milliliters for a medicine capsule.


7 0
3 years ago
Please help me with this
Sonja [21]
The answer to your question is D) √5x/5x.

I hoped this helped!
6 0
3 years ago
To make fruit punch for a party, we need 4 1⁄2 gallons of ginger ale, 1 gallon of strawberry juice, 2 3⁄4 gallons of frozen oran
lina2011 [118]

For this case we convert the mixed numbers to fractions:

4 \frac {1} {2} = \frac {2 * 4 + 1} {2} = \frac {9} {2}\\2 \frac {3} {4} = \frac {4 * 2 + 3} {4} = \frac {11} {4}

Now we add the fractions:

\frac{9} {2}+1+ \frac {11} {4} + \frac {1} {8} =

We find the least common multiple of the denominators. The l.c.m is 8, then we divide by each denominator and multiply the result by each numerator.

\frac {36 + 8 + 22 + 1} {8} =\\\frac {67} {8} =

8,375

Thus, the punch recipe implies 8.375 gallons. If we convert to a mixed number we have:

8 \frac {3} {8} gallons

Answer:

8 \frac {3} {8}gallons

4 0
3 years ago
What is the product? 2x+8 x2 + 3x-4 x(x-4)(x-1) 20x+4) 2 (x+4)(x-4) 2x(x-1) 2x(x+4)​
guajiro [1.7K]

=−640x10+1280x9+19904x8−40728x7−144488x6+323904x5−162304x4+1024x3+2048x2

step by step

(2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x(x+4)

=((2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x)(x+4)

=((2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x)(x)+((2x+8x2+3x−4x(x−4)(x−1)(20)x+4)(2)(x+4)(x−4)(2)x(x−1)(2)x)(4)

=−640x10+3840x9+4544x8−58904x7+91128x6−40608x5+128x4+512x3−2560x9+15360x8+18176x7−235616x6+364512x5−162432x4+512x3+2048x2

=−640x10+1280x9+19904x8−40728x7−144488x6+323904x5−162304x4+1024x3+2048x2

7 0
3 years ago
Read 2 more answers
Train A and Train B both leave the station at 9am. Train A stops every 15 minutes. Train B stops every 24 minutes. At what time
snow_tiger [21]

Answer:

here

Step-by-step explanation:

180 minutes

6 0
3 years ago
Other questions:
  • Leah is 5 1/2 feet tall Leah's sons height is 2/3 her height. What is s, her sons height, in feet?
    12·1 answer
  • Which of these pairs of points defines a line with slope of 4? (help asap pls)
    6·1 answer
  • Two trains are traveling at a constant rate which train has the greater speed
    12·1 answer
  • Find the extreme values of the function and where they occur. f(x)=x-4sqrt(x)
    5·1 answer
  • PLEASE HELP PLEASE 9TH GRADE MATH
    6·1 answer
  • 6 5/6 - 3 1/3 Simplified
    11·1 answer
  • A bag contains 8 blue marbles, 11 green marbles, and 7 red marbles. Which is the probability of drawing a green marble, replacin
    15·2 answers
  • Evaluate the expression when x = -3<br> -5x -15<br> Show your work
    11·1 answer
  • Utilizar la recta numerica para calcular:
    5·2 answers
  • The triangle of vertex of an isosceles triangle is 110 find its base triangles
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!