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Alex
3 years ago
13

River collects old coins. He has four

Mathematics
1 answer:
vlabodo [156]3 years ago
5 0

9514 1404 393

Answer:

  c) 5n +25q = 365

     2q -4 = n

Step-by-step explanation:

The number of nickels (n) is 4 less than twice the number of quarters (q), so one of the equations is ...

  2q -4 = n

The face value is 365 cents, so another equation is ...

  5n +25q = 365

These equations seem to match choice C.

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1.
Alinara [238K]

Answer: (b) -7/2, 6.

Step-by-step Explanation: We put x = 0; then y = 6; y-intercept of the line is (0,6).

For the slope: 4y = 24 - 14x; then, y = (-7/2)x + 6; the slope is -7/2.

5 0
3 years ago
Read 2 more answers
For y = 4x + 2x2 – x3, show how to find the value for y, when x = 2. Show your work
shusha [124]
To find the value of y in the given equation, substitute the given value of x to the equation.
   
                               y = 4x + 2x² -x³

Substitute 2 for all x's.
  
                               y = 4(2) + 2(2²) - 2³ = 8

Therefore, the value of y is 8. 


6 0
3 years ago
Which calculation can be used to find the value of q in the equation q3 = 64?
polet [3.4K]
Division. You can divide 64 by 3 to find q.
6 0
4 years ago
Read 2 more answers
35 of the apartments have a balcony and 55 of them don't. An apartment is randomly selected as part of a survey. What is the pro
kobusy [5.1K]

Answer:

39%

Step-by-step explanation:

It is given that 35 apartments have balconies in them.

While 55 apartments do not have balconies in them.

Total number of balconies is the sum of the apartments. i.e. 35 + 55

                                                                                             = 90 apartments

Therefore for the survey when an apartment is randomly selected, the percentage of the probability of the apartment to have a balcony can be found out by dividing 35 by 90 and then multiply by 100.

i.e.

$=\frac{35}{90}$

= 0.38888888

Multiplying by 100, we get

= 0.388888 x 100

= 38.8888 %

= 39 %

3 0
3 years ago
Represent each of these relations on {1, 2, 3} with a matrix (with the elements of this set listed in increasing order).
Maru [420]

Answer:

(1 1), (1 2), (1 3), (2 2), (2 3) (3 3)

Step-by-step explanation:

discrete mathematics

4 0
3 years ago
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