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3 years ago

I need help with 7-12

Mathematics

1 answer:

ololo11 [35]3 years ago

3 0

Answer:

7-12 is -5

Step-by-step explanation:

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Simplify. −2i ⋅ (−3i)

xeze [42]

-2i * -3i
6i
6i^2
6 * -1
-6

Answer: C) -6 or the third option.

3 0

3 years ago

the wholesale price for a pair of shoes is $5.50. A certain department store marks up the wholesale price by 40%. Find the price

Furkat [3]

EXPLANATION

Price of shoes = $5.50

Markup= 40%

Let's call x to the unknown final price.

The markup percentage relationship is given by the following formula:

$\text{Markup =( }\frac{Selling\text{ Price}-\text{Cost Price}}{\text{Cost Price}})\cdot100$

Replacing terms:

$\text{40}=(\frac{x-5.5}{5.5})\cdot100$

Multiplying both sides by 5.5:

$40\cdot5.5=(x-5.5)\cdot100$

Dividing both sides by 100:

$\frac{40\cdot5.5}{100}=x-5.5$

Adding 5.5 to both sides:

$(\frac{40\cdot5.5}{100})+5.5=x$

Simplifyng the fraction:

$2.2+5.5=x$

Adding numbers:

$\text{7}.7\text{ = x}$

Switching sides:

$x=7.7$

Answer: The final price of the shoes in the deparment store is $7.7

6 0

1 year ago

Please help me.................

Varvara68 [4.7K]

10 feet in guessing Bc it’s 9.5 and the nearest tenth is 10

8 0

3 years ago

Denise likes 2 teaspoons of milk in every 8-ounce cup of coffee she drinks. How many teaspoons of milk does Denise like per ounc

KengaRu [80]

Answer:

1/4 teaspoons of milk to ounces of coffee

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the area of the rectangle?

allsm [11]

Answer:

6300

Step-by-step explanation:

79.372539331952

6,300.00000000195

26.45751311065 × 3

79.37253933195

10 × 70

700

√(700)

26.45751311065

7 0

3 years ago