Larisa buys 5 hats for $9.99 each. how much does she spend

Answers

Answer 1

Answer: If you would like to know how much money does Larisa spend on the hats, you can calculate this using the following steps:

5 hats * $9.99 = 5 * 9.99 = $49.95

The correct result would be $49.95.

Answer 2

Answer: 5 × $9.99 = $49.95 spent Larisa.

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A jewelry maker will use 24 blue beads and 30 green beads to make necklaces. What are the possible number of necklaces she can make if each necklace has the same number of blue and green beads? How many of each type will be on each necklace?

Answers

Answer:

1 necklace: 24 blue, 30 green
2 necklaces: 12 blue, 15 green (each)
3 necklaces: 8 blue, 10 green (each)
6 necklaces: 4 blue, 5 green (each)

Step-by-step explanation:

The greatest common factor of 24 and 30 is 6. The divisors of 6 are 1, 2, 3, and 6. Those are the numbers of identical necklaces that might be made from the beads. The number of beads of each color is found by dividing the total number of beads by the number of necklaces being made.

The possible numbers of necklaces are 1, 2, 3 or 6.

The numbers of (blue, green) beads on each will be (24, 30), (12, 15), (8, 10), or (4, 5), respectively.

_____

The greatest common factor (GCF) is the product of the common prime factors.

24 = 2^3×3

30 = 2×3×5

The prime factors in common are 2 and 3, so the GCF is 2×3 = 6.

Michi put $7.50 worth of gas in her car. two co-workers who were riding to work with her offered to share the cost of the gas. one paid 1/2 of the total amount and the other paid 1/3 of the total amount. how much of the total amount was left

Answers

1.25.
7.50 x 1/2 = 3.75
+
7.50 x 1/3 = 2.50
= 6.25
7.50 - 6.25 = 1.25

Solve the compound inequality.

Answers

Answer:

x < 0 or x > 3

Step-by-step explanation:

First, we'll solve 5x - 11 < -11.

5x < 0 so x < 0.

As for 4x + 2 > 14, 4x > 12 which means x > 3.

STANDARD NOTATIONSCIENTIFIC NOTATION
1) 76,450,000
7.645 x 10
2) 0.000327
3.27 x 104
3) 34,000
3.4 x 104
4) 116,000,000,000
1.16 x 109
<
5) 0.024
24 x 10-2
6) 2,800
2.8 x 103
7) 100
1 x 103
8) 0.0000099
9.9 x 10-6
9) 900,000
9 x 10-5
10) 0.00633
63.3 x 10-3

Answers

Answer:

Step-by-step explanation:

1. 7.645 x 10^7

2. 3.27 x 10^-4

3. 3.4 x 10^4

4. 1.16 x 10^11

5. 2.4 x 10^-2

6. 2.8 x 10^3

8. 9.9 x 10^-6

9. 9 x 10^5

10. 6.33 x 10^-3

7. 1 x 10^2

Final answer:

The listed conversions between standard and scientific notation are mostly correct, with corrections provided for the representations of 900,000 and 100. Scientific notation involves expressing numbers as a decimal between 1 and 10 multiplied by a power of 10.

Explanation:

The conversions between standard notation and scientific notation provided here mostly appear to be correct, however, there are a few errors:

9) 900,000 in scientific notation would be 9 x 105, not 9 x 10-5.

7) 100 in scientific notation would be 1 x 102, not 1 x 103.

Standard notation is a straightforward representation of numbers. Scientific notation, on the other hand, is a method of writing or displaying numbers in terms of a decimal number between 1 and 10, multiplied by a power of 10.