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2 years ago

Practice Problems

Mathematics

1 answer:

IgorC [24]2 years ago

7 0

Answer: The absolute values of 7 and -7 are equal because they are both a distance of 7 units from 0 on the number line.

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Which expression is equivalent to -3(4x-0.50)? PLEASEEEEEEEEEEEEE HELPPP

Misha Larkins [42]

Final Answer: $-12x + 1.5$

Steps/Reasons/Explanation:

Question: Which expression is equivalent to $-3(4x - 0.50)?$

Step 1: Expand by distributing terms.

$-3$ × $4x - 3$ × $-0.50$

Step 2: Simplify $-3$ × $4x$ to $-12x$ .

$-12x - 3$ × $-0.50$

Step 3: Simplify $3$ × $-0.50$ to $-1.5$ .

$-12x - (-1.5)$

Step 4: Remove parentheses and add.

$-12x + 1.5$

~I hope I helped you :)~

6 0

3 years ago

Sydney purchases a new car for $27,500. The value of the car decreases at rate of 15% each year. In approximately will the $1,25

Pani-rosa [81]

Answer:

Time taken n = 19 years (Approx)

Step-by-step explanation:

Given:

Amount of car P = $27,500

Decrease rate r = 15% = 0.15

Final amount A = $1,254

Find:

Time taken n

Computation:

A = P[1-r]ⁿ

1,254 = 27,500[1-0.15]ⁿ

0.0456 = [0.85]ⁿ

Time taken n = 19 years (Approx)

8 0

2 years ago

Read 2 more answers

A hippopotamus is 100 pounds of food a day how many days would it take a hippo to the 1 ton of food

alina1380 [7]

Answer:

20 days

Step-by-step explanation:

1 ton=2000ibs 2000/100=20

8 0

3 years ago

Which statement is true about the parts of this expression? 5/6 + 1/4x - y The constant is 5/6. The only coefficient is 1/4. The

andriy [413]

Answer:

Step-by-step explanation:

1/4 is the coefficient

x and y is the variables

5/6 is the constant but there could be a equal to zero on the end giving you another constant

Therefor the only true statement is The only coefficient is 1/4.

4 0

3 years ago

Find the volume of a cone with a diameter of 7 inches and a height that is 4 times the radius. Use 3.14 for pi, and round your a

Tatiana [17]

Answer:

179.50 $in^{3}$

Step-by-step explanation:

The equation for volume of a cone is:

$V=\pi *r^{2} *\frac{h}{3}$

The radius is half of the diameter so r= 3.5 in

The height is 4 times the radius so h=14

$V=3.14*3.5^{2} * \frac{14}{3}$

V= 179.50 $in^{3}$

7 0

3 years ago

Read 2 more answers