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LenaWriter [7]
2 years ago
8

Shalina uses the expression 3x to determine the cost of x notebooks. What is the cost of 24 notebooks?

Mathematics
1 answer:
PIT_PIT [208]2 years ago
3 0

Answer:

$72

Step-by-step explanation:

Let's use substitution to identify the cost of 24 notebooks.

<u>The equation is represented as:</u>

3x = ?

<u>Substitute 24 </u><u>into</u><u> </u><u>x</u><u>:</u>

<u>3(24) = ?</u>

<u>Solve</u><u>:</u>

72

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What is the completely simplified form of the expression 2(1 – 3x) – (5x + 1)?
Nady [450]

Answer:

i think it's 11x-1

Step-by-step explanation:

2(1-3x)-(5x+1)

2-6x-5x-1

2-11x-1

11x-1

3 0
3 years ago
Brad sells each cup of lemonade for $0.50. He wrote the equation y = 0.50x to figure out the amount y he will get for selling x
Black_prince [1.1K]

Answer:

(X,Y) is (20,10) so that mean he made 10 bucks and sold 20 cups

Step-by-step explanation:

5 0
3 years ago
Jack has some marbles. He has ten more red marbles than blue marbles. He has fewer yellow marbles than blue marbles.
kap26 [50]

Answer:

<u>Jack has at least 15 marbles: 12 red, 2 blue and 1 yellow.</u>

Step-by-step explanation:

1. Let's review the information given to us to solve the problem correctly:

Number of red marbles = 10 more than blue marbles

Number of yellow marbles fewer than blue marbles

2. How many of each color marble could Jack have?

r = Number of red marbles

b = Number of blue marbles

y = Number of yellow marbles

r = b + 10

y < b

If y = 1, then b ≥ 2, and r = b + 10,

fulfilling the three conditions, we have:

<u>y = 1, b = 2, and r = 12</u>

5 0
3 years ago
OK before from the playing golf. The total cost of the round of golf is $108. Each person in the group has the same coupon. The
Fantom [35]
108 - 76 = 32

so your answer is, it's worth $32
8 0
3 years ago
Patricia needs 10 yards of fabric to make curtains for her bedroom she also needs 3 yards of fabric to make a cover for her stor
Burka [1]

Answer:

24 feet

Step-by-step explanation:

According to the question, Patricia needs 10 yards of fabric to make curtains for her bedroom she also needs 3 yards of fabric to make a cover for her storage bench

So, she needs 13 yards

converting into feet

1 yard = 3 feet

13 yards x 3 = 39 feet

Now, she already has  15 feet of fabric.

Finding out the difference : 39 - 15= 24 feet

Therefore, she needs 24 feet more of fabric

8 0
3 years ago
Read 2 more answers
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