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3 years ago

PLZ HELP ASAP!

Mathematics

2 answers:

Nataly [62]3 years ago

8 0

The answer is -7. Plug it in if you need to check

34kurt3 years ago

4 0

<span>To evaluate the given expression, we need the values of each variable and substitute these values to the expression. Then, go on with the operations involved.

</span>4x - y - 2z
4(-2) - (3) - 2(-2)
-8 - 3 + 4
-7

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A scientific calculator costs $3.50 today. I remember when they cost about $75. What is the percent decrease in the price of a s

mel-nik [20]

Answer:

A scientific calculator costs $3.50 today. I remember when they cost about $75. What is the percent decrease in the price of a scientific calculator?

In other words: The decrease in price is what percent of the original price?

% Decrease= (Decrease in price(New price-Old Price))/(Original Price(old price))×100

8 0

4 years ago

I need help i need the statement and reason

Marina86 [1]

For number one
S: supplement.
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#2
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6 0

3 years ago

Please I need answer

Nastasia [14]

Answer:

I'm not 100% sure but I believe the answer is (B)

Step-by-step explanation:

3 0

3 years ago

Your friend borrows $100 from you and promises to pay you back $109 in 8 months. What annual percentage rate (A.P.R.) are you ch

NNADVOKAT [17]

Answer:

$12.0\%=0.12$

Step-by-step explanation:

We have been given that your friend borrows $100 from you and promises to pay you back $109 in 8 months.

We will use simple interest formula to solve our given problem.

$A=P(1+rt)$ , where,

A = Amount after t years,

P = Principal amount,

r = Annual interest rate in decimal form,

t = Time in years.

Convert 8 months to year:

$\frac{8}{12}\text{ year}=\frac{2}{3}\text{ year}$

$108=100(1+r*\frac{2}{3})$

$108=100+r*\frac{2}{3}\times 100$

$108-100+r*\frac{200}{3}$

$108-100=100-100+r*\frac{200}{3}$

$8=r*\frac{200}{3}$

$8\times \frac{3}{200}=r*\frac{200}{3}\times \frac{3}{200}$

$\frac{24}{200}=r$

$r=\frac{24}{200}$

$r=0.12$

Convert to percent:

$0.12\times 100\%=12\%$

Therefore, you are charging 12% APR to you friend.

6 0

3 years ago

How many meters are there in 234 cm?

Reika [66]

There are 100 cm for every 1 meter
$\frac{1 m}{100 cm}$
so insert the 234 as the numerator and simplify
$\frac{234cm}{100cm}$
The simplified form of the equation is 2.34
There is 2.34 meters in 234 cm

6 0

3 years ago

Read 2 more answers