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
melomori [17]
2 years ago
10

Question 2 of 10 Sakura buys some softballs at $3 each and bats at $35 each for her PE class. She buys twice as many balls as ba

ts. She spends $131 in total, which includes $8 tax. Which equation would you use to find the number of bats she buys? Let x represent the number of bats she buys. O A. x + 2x + 8 = 131 B. 35 (x) + 3 (20) = 131 C. 35 (x) + 3 (2x) + 8 = 131 D. 35 (2x) + 3 (2) + 8 = 131​
Mathematics
1 answer:
kicyunya [14]2 years ago
8 0

Answer: Cost of each ball , $3.

Cost of each bat , $35 .

Total money spend , $131 .

She buys twice as many balls as bats.

Tax , $8 .

To Find :

The number of bats she  buys .

Solution :

Let , x represent the number of bats she buys.

So , number of balls she buys is 2x .

Therefore , number of bats she buys is 3 .

Hence , this is the required solution .

Step-by-step explanation:

You might be interested in
Write an equation of a parabola that passes through (3,-30) and has x-intercepts of -2 and 18. Then find the average rate of cha
Nookie1986 [14]

Answer:

The equation of the parabola is y = \frac{2}{5}\cdot x^{2}-\frac{32}{5}\cdot x -\frac{72}{5}.  The average rate of change of the parabola is -4.

Step-by-step explanation:

We must remember that a parabola is represented by a quadratic function, which can be formed by knowing three different points. A quadratic function is standard form is represented by:

y = a\cdot x^{2}+b\cdot x + c

Where:

x - Independent variable, dimensionless.

y - Dependent variable, dimensionless.

a, b, c - Coefficients, dimensionless.

If we know that (3, -30), (-2, 0) and (18, 0) are part of the parabola, the following linear system of equations is formed:

9\cdot a +3\cdot b + c = -30

4\cdot a -2\cdot b +c = 0

324\cdot a +18\cdot b + c = 0

This system can be solved both by algebraic means (substitution, elimination, equalization, determinant) and by numerical methods. The solution of the linear system is:

a = \frac{2}{5}, b = -\frac{32}{5}, c = -\frac{72}{5}.

The equation of the parabola is y = \frac{2}{5}\cdot x^{2}-\frac{32}{5}\cdot x -\frac{72}{5}.

Now, we calculate the average rate of change (r), dimensionless, between x = -2 and x = 8 by using the formula of secant line slope:

r = \frac{y(8)-y(-2)}{8-(-2)}

r = \frac{y(8)-y(-2)}{10}

x = -2

y = \frac{2}{5}\cdot (-2)^{2}-\frac{32}{5}\cdot (-2)-\frac{72}{5}

y(-2) = 0

x = 8

y = \frac{2}{5}\cdot (8)^{2}-\frac{32}{5}\cdot (8)-\frac{72}{5}

y(8) = -40

r = \frac{-40-0}{10}

r = -4

The average rate of change of the parabola is -4.

3 0
2 years ago
Which is the equation of the line with slope 3 that contains point (-1,5)?
Elena-2011 [213]
The answer is y-5=3(x+1)
7 0
1 year ago
Read 2 more answers
Joe wants to calculate 12×8 in a calculater but the 8 key isnt working.Explain what can he do
eduard

Answer:

12x4x2

Step-by-step explanation:

4x2 =8

so 12x4x2=96

7 0
3 years ago
Read 2 more answers
In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains
kherson [118]

Answer:

The correct option is B. two oxygen atoms

Step-by-step explanation:

The molecular formula for carbon dioxide is given by :

CO_2

Here, the alphabet C stands for Carbon and the alphabet O stands for Oxygen.

And the prefixes of each of these words represents the number of atoms present of the corresponding element in one molecule of carbon dioxide.

So, The prefix of the first word that is C is 1

⇒ One molecule of carbon dioxide contains one atom of Carbon.

The prefix of the second word that is O is 2

⇒ One molecule of carbon dioxide contains 2 atoms of Oxygen.

Therefore, The correct option is B. two oxygen atoms

7 0
3 years ago
Read 2 more answers
The price of a baseball ticket at Yankee Stadium is 21⁄4 times the original price of a ticket at $60. What is the price of the t
Anon25 [30]
C. $135, 1/4 of 60 is 15 and add that on top of 60x2
7 0
3 years ago
Other questions:
  • In table 2, at this rate how many books can you buy with 5$
    15·1 answer
  • What is the volume of a sphere with a radius of 34.2 m, rounded to the
    11·1 answer
  • Automobile policies are separated into two groups: low-risk and high-risk. Actuary Rahul examines low-risk policies, connuing un
    12·1 answer
  • The physics department of a college has 8 male professors, 11 female professors, 16 male teaching assistants, and 6 female teach
    15·2 answers
  • Plz help ASAP and good explanation thank you
    6·1 answer
  • What is the equation of the line that passes through the points (-1,3) and (1,11)?
    8·1 answer
  • Help asap plz, hehdbjdnejxjfbrjdjcnbd
    9·2 answers
  • The pairs of numbers below represent the price of different
    9·1 answer
  • PLEASEEE HELPPPP U DONT HAVE TO BE CORRECT JUST HAS TO MAKE SENSEEE PLS HELLPP
    13·2 answers
  • Solve the following system of equations using the elimination method. 4x + 2y = 12 4x + 8y = –24
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!