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velikii [3]
4 years ago
6

Joyce is buying supplies at the school bookstore. A pencil costs $0.25, a notebook costs $1.75, and a piece

Mathematics
2 answers:
makvit [3.9K]4 years ago
4 0

Let Pencils be P

Let notebooks be N

Let graph paper be G

Let cost be C

(Always write a let statement before you write and algebraic equation)

C= (Px0.25)+(Nx1.75)+(Gx0.05)

White raven [17]4 years ago
3 0

Answer:

C = 0.25x +1.75y +0.05z in dollars

Step-by-step explanation:

Let 'x' be the number of pencils, 'y' be the number of notebooks, and 'z' be the  number of graph papers bought. Then the total cost 'C' in dollars should be:

C = 0.25x +1.75y +0.05z

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A theatre has 50 seats on the front row. There are 4 additional seats in each following row.
alexandr402 [8]
\boxed { \boxed { T_n = a_1 + d(n - 1)}}

\text {Given that }a_1 = 50 \text { and } d = 4

T_n = 50 + 4(n - 1)

T_n = 50 + 4n - 4

T_n = 46 + 4n

\boxed { \boxed {T_n = 46 + 4n }}

When n = 20,
T_{20} = 46 + 4(20) = 126

\boxed { \boxed {\text{Answer: The 20th term is 126}}}
4 0
4 years ago
Solve for x.<br><br> -5x = -10
andreev551 [17]

Answer:

x=2

Step-by-step explanation:

divide -5 to both sides to isolate the x. two negatives make a positive therefore x=2.

i hope this helps :)

6 0
3 years ago
Read 2 more answers
Please *atleast* answer one of them!
Julli [10]

Answer and Step-by-step explanation:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

1. Let's write out the equation to subtract.

7t - 2u - 3v - (t - 3v)

Distribute the negative to the t and -3v.

7t - 2u - 3v - t + 3v         (The negatives cancel out)

Now simplify by combining like terms.

6t - 2u

This is the answer because the 3v and -3v cancel out.

2. I don't really understand what this is saying. Is there answer choices for this? But what I think its saying is that the lift has a constant of 2.

3. To find out the amount of terms, we would simplify the equation.

2x + 3y - 5x + yz - x

-4x  + 3y + yx

Here, we can see that we have 3 terms in this expression.

-4x is the first term, +3y is the second term, and +yx is the third term.

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#teamtrees #WAP (Water And Plant)

8 0
3 years ago
What is 27/125 equal to
lutik1710 [3]
The answer is 27/125=0.216
7 0
3 years ago
An equation is shown below:
IrinaK [193]
5(2x - 8) + 15 = -15
               -15      -15     subtract 15 from each side
5(2x - 8) = -30
  ÷5             ÷5             divide both sides by 5
2x - 8 = -6
     +8    +8                   add 8 to each side
2x=2
÷2  ÷2                          divide both sides by 3
x = 1

Checking:
5(2(1)-8) + 15 = -15
5(-6) + 15 = -15
-30 + 15 = -15
-15 = -15             Correct! x=1
7 0
4 years ago
Read 2 more answers
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