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
slamgirl [31]
2 years ago
14

Coach Smith purchased x footballs and y basketballs at a sporting goods store. The price of one football was $35.00 and the pric

e of one basketball was $45.00. There was no tax included on the purchase. Part A. Write an expression that can be used to find the total cost of x footballs and y basketballs. Part B. The total cost of the purchase was $455.00. If Coach Smith purchased 4 footballs, find the number of basketballs he purchased.
Mathematics
2 answers:
Nataly_w [17]2 years ago
4 0
The answer is 7 because it just is uuhm
ELEN [110]2 years ago
3 0

Answer:

Part A:  35x + 45y = total cost

Part B:  35(4) + 45y = 455; y = 7 basketballs

Step-by-step explanation:

35(4) + 45y = 455

140 + 45y = 455

45y = 315

y = 7

You might be interested in
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
faltersainse [42]

Answer:

V = 34,13*π   cubic units

Step-by-step explanation: See Annex

We find the common points of the two curves, solving the system of equations:

y²  = 2*x                           x = 2*y  ⇒  y = x/2

(x/2)² = 2*x

x²/4 = 2*x

x  =  2*4         x  = 8      and   y = 8/2       y = 4

Then point  P ( 8 ;  4 )

The other point Q is  Q ( 0; 0)

From these  two points, we get the integration limits for dy ( 0 , 4 )are the integration limits.

Now with the help of geogebra we have: In the annex segment ABCD is dy then

V = π *∫₀⁴ (R² - r² ) *dy   =  π *∫₀⁴ (2*y)² - (y²/2)² dy =  π * ∫₀⁴ [(4y²) - y⁴/4 ] dy

V = π * [(4/3)y³ - (1/20)y⁵] |₀⁴

V =  π * [ (4/3)*4³ - 0 - 1/20)*1024 + 0 )

V = π * [256/3  - 51,20]

V = 34,13*π   cubic units

3 0
2 years ago
It is believed that 36% of the US population has never been married, 32% are divorced, 27% are married, and 5% are widowed. You
Katena32 [7]

Answer: the smallest number of people required for the sample to meet the conditions for performing inference is 100

Step-by-step explanation:

Given that;

36% of US population has never been married

32% are divorced

27% are married

5% are widowed

Taking a simple random sample of individuals to test this claim;

we need expected count in each cell to be at least 5, here the smallest proportion is 5% = 0.05

so we only need to satisfy condition for its expected count;

n × 0.05 ≥ 5

n = 5 / 0.05 = 100

Therefore the smallest number of people required for the sample to meet the conditions for performing inference is 100

6 0
2 years ago
Evaluate n + 5/5<br> When n= -10
vesna_86 [32]

Answer:

n + 5/5 = -9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve for X: Correctly answer the question
Klio2033 [76]

Answer:

x=16

Step-by-step explanation:

(whole secant) x (external part) = (tangent)^2

(8+24) * 8 = x^2

32*8 = x^2

256  =x^2

Take the square root of each side

sqrt(256) = sqrt(x^2)

16 = x

3 0
2 years ago
Helpppppppppppppppppp
Brilliant_brown [7]

Answer:

<em>Option A; the tournament did begin with 128 teams</em>

Step-by-step explanation:

We can see that this equation is represented by compound interest, in other words an exponential function, either being exponential growth or exponential decay;

f ( x ) = a + ( b )^x, where a ⇒ start value, b ⇒ constant, x ⇒ ( almost always considered ) time, but in this case rounds

Option A; The equation is given to be t ( x ) = 128 * ( 1/2 )^x. Given by the above, 128 should represent the start value, hinting that the tournament <em>did indeed begin with 128 teams</em>

Option B; As the rounds increase the number of teams approach 128. Now mind you 128 is the start value, not the end value, which would mean that <em>this statement is false</em>

Option C; The tournament began with 1/2 teams. Theoretically that would not be possible, but besides that the tournament began with 128 teams, only differed by 1/2 times as much every round. <em>This statement is thus false</em>

Option D; This situation actually represents exponential decay. If each round the number of teams differed by 1/2 times as much, the number of teams remaining is less than before, and thus this models exponential decay, not growth<em> ( statement is false )</em>

<em>Answer : Option A; the tournament did begin with 128 teams</em>

4 0
3 years ago
Other questions:
  • It takes Santa 5 minutes to fly 35 miles with the wind .It takes him 7 minutes to fly 35 miles against the wind determine the sp
    6·1 answer
  • Solve the following system of equations. -3x + 5y = 80 x + 5y = 40 A. x = -10, y = 10 B. x = 2, y = 17.2 C. x = 8, y = 6.4 D. x
    14·1 answer
  • What is the area of a rectangular driveway measuring 20 feet long &amp; 15 feet wide​
    11·2 answers
  • Determine the intercepts of the line
    15·1 answer
  • -56 + _ =-84<br><br> please help
    14·1 answer
  • Can someone help me in these questions please
    6·1 answer
  • The surface area of a cube is equal to the sum of the areas of all sides. The surface
    13·1 answer
  • Dont even know where to start
    10·1 answer
  • CAN SOMEONE PLEASE HELP ME!
    10·1 answer
  • Immigration reform A news organization wants to know what percent of U.S. residents support a "pathway to citizenship" for peopl
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!