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
olganol [36]
3 years ago
6

A class is collecting quarters for a charity drive. After 3 weeks, they have collected 120 quarters. After another week, the tot

al number of quarters is at 210. How many more quarters were collected during the fourth week?
Mathematics
1 answer:
Ugo [173]3 years ago
5 0
210-120=90. The answer is 90 quarters.
You might be interested in
Help me with these math questions.
Olegator [25]

graph A

no x-intercept

no y-intercept

H.A is y = 5

V. A. is x = 0

*****************************************

Answer: \frac{150}{31}

<u>Step by step explanation:</u>

log₆(5x + 6) - log₆(x - 4) = 2

log₆(\frac{5x+6}{x-4}) = 2

(\frac{5x+6}{x-4}) = 6²

(\frac{5x+6}{x-4}) = 36

5x + 6 = 36(x - 4)

5x + 6 = 36x - 144

       6 = 31x - 144

    150 = 31x

     \frac{150}{31} = x

**********************************************************

Answers:

  • a. (-1, -5)
  • b. up
  • c. x = -1
  • d. \frac{-2+\sqrt{15}}{3} and\frac{-2-\sqrt{15}}{3}
  • e. -2
  • f. see attachment
  • g. domain (-∞, ∞)  range [-5, ∞)

<u>Explanation:</u>

f(x) = 3x² + 6x - 2

      a=3  b=6 c=-2

x = \frac{-b}{2a} =\frac{-6}{2(3)} = \frac{-6}{6} = -1

Axis Of Symmetry: x = -1

f(-1) = 3(-1)² + 6(-1) - 2

       = 3 - 6 - 2

       = -5

Vertex: (-1, -5)

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

  = \frac{-6+/-\sqrt{6^{2}-4(3)(-2)}}{2(3)}

  = \frac{-6+/-\sqrt{36+24}}{6}

  = \frac{-6+/-\sqrt{60}}{6}

  = \frac{-6+/-2\sqrt{15}}{6}

  = \frac{-2+/-\sqrt{15}}{3}

x-intercepts: \frac{-2+/-\sqrt{15}}{3}



6 0
3 years ago
Which fraction is equivalent to -0.06?<br><br> -1/6, -6/10, -3/5, or -3/50
vitfil [10]
\frac{-3}{50} = -0.06

0.06 = 6%

3 out of 50 = 6%
4 0
3 years ago
If the volume of a cuboid is 120 cm' and it has a length of 10cm, a height of 4cm, the width of the cuboid is ?
Misha Larkins [42]

Answer:

3cm

Step-by-step explanation:

V = L * W * H

V = 10 * W * 4

10 * 4 = 40

120 / 40 = 3

W = 3

6 0
2 years ago
What is the answer to the question? 2x^2=10x
Lina20 [59]

Answer:

The correct answer is 0 or 5

Step-by-step explanation:

In order to solve this, solve for 0.

2x^2 = 10x

2x^2 - 10x = 0

Now factor the polynomial.

x(2x - 10) = 0

Now set each piece individually equal to 0.

x = 0

2x - 10 = 0

2x = 10

x = 5

7 0
3 years ago
Read 2 more answers
What is the power of x? <br> A) 2 <br> B) 3 <br> C) 6 <br> D) 7
Thepotemich [5.8K]

Answer:

A

Step-by-step explanation:

They are basically wanting the value of x.

These are 2 secant lines drawn. Secant Line is a line that intersects the circle at 2 points.

To solve this, we have to use secant-secant theorem.

Secant-Secant Power Theorem tells us that if 2 secant lines are drawn from external point (here, E) to a circle, then, product of measure of one secant's external part and total secant is equal to other secants external part and whole secant.

In algebra, that is:

(x+1)(x+1+11)=(x+4)(x+4+1)

Let's multiply and find the value of x:

(x+1)(x+1+11)=(x+4)(x+4+1)\\(x+1)(x+12)=(x+4)(x+5)\\x^2 + 13x + 12=x^2+9x+20\\13x+12=9x+20\\13x - 9x = 20 - 12\\4x = 8\\x = 2

Hence, the correct answer choice is A

8 0
4 years ago
Other questions:
  • A coin is tossed and a number cube is rolled what is p(heads, a number less than 5)
    6·2 answers
  • You are buying packages of beads to make bracelets. Each package costs $3 plus 7% tax. You have a gift card for $15, and you pla
    9·2 answers
  • The population of a particular city is given by the function P(t) = 27,400(1.07)t, where t is the time in years and P(t) is the
    9·1 answer
  • Unit test<br> 4% of a number is what fraction of that number?
    15·1 answer
  • What is the circumference of the circle in terms of pi? The radius is 2.2 and I got 13.82 but the choices are 1.1, 1.21, 2.2 and
    5·2 answers
  • A high-speed computer printer prints a page in 1/6 second. Using this printer, how long would it take to print 30 pages?
    6·2 answers
  • It takes Madison 8 minutes 13 seconds to walk around the track at school. It takes James 7 minutes 31 seconds to walk around the
    8·2 answers
  • What is the value of n?
    8·1 answer
  • If MP is a perpendicular bisector to LN, find each value(picture attached)
    13·1 answer
  • The distance around a garden is 7 4/5 yards long. One brick is 1/5 yard in length. How many bricks are needed to go around the g
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!