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3 years ago

Examine the steps used to solve the equation.

Mathematics

2 answers:

QveST [7]3 years ago

8 0

Answer:

Examine the steps used to solve the equation.

12.5x − 10.2 = 3(2.5x + 4.2) - 6

1. 12.5x − 10.2 = 7.5x + 12.6 − 6

2. 12.5x − 10.2 = 7.5x + 6.6

3. 12.5x = 7.5x + 16.8

4. 5x = 16.8

5. x = 3.36

Analyze the steps to determine which properties or procedures were used to complete each step

Step 1:

✔ distributive property

Step 2:

✔ combining like terms

Step 3:

✔ addition property of equality

Step 4:

✔ subtraction property of equality

Step 5:

✔ division property of equality

Step-by-step explanation:

Mnenie [13.5K]3 years ago

3 0

Answer:

Step 1:

✔ distributive property

Step 2:

✔ combining like terms

Step 3:

✔ addition property of equality

Step 4:

✔ subtraction property of equality

Step 5:

✔ division property of equality

Step-by-step explanation:

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3 years ago

jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selecti

Ksju [112]

A total of 1,716 selections of the 7 flowers are possible.

Step-by-step explanation:

Step 1:

There are 13 flowers from which Jeanine Baker plans to use 7 of them.

To determine the number of selections that are possible we use combinations.

The formula for combinations is; $^{n} C_{r}=\frac{n !}{(n-r) ! r !}$ .

Step 2:

In the given formula, n is the total number of options and r is the number of options to be selected.

For this question, $n = 13$ and $r=7$ .

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So a total of 1,716 selections are possible.

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3 years ago

A clothing store charges $30 for 12 pairs of socks. A student says that the unit price is $0.40 per pair. What is the error? Wha

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8 0

3 years ago

Read 2 more answers

Solve for b: b² = 8b + 84

levacccp [35]

B² = 8b + 84
b² - 8b - 84 = 0
b = -(-8) +/- √((8)² - 4(1)(-84))
 2(1)
b = 8 +/- √(64 + 336)
 2
b = 8 +/- √(400)
 2
b = 8 +/- 20
 2
b = 4 + 10
b = 4 + 10 b = 4 - 10
b = 14 b = -6

4 0

3 years ago