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otez555 [7]
3 years ago
12

Why is 4+ -3 equal to one

Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0

Answer:

"Zero-Exponent Rule: a0 = 1, this says that anything raised to the zero power is 1. Power Rule (Powers to Powers): (am)n = amn, this says that to raise a power to a power you need to multiply the exponents."

brainlist?

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Solve x and y please need it for tomorrow
Evgen [1.6K]
Solve for x by cross multiplying then isolating the variable:
\frac{9}{15}= \frac{x}{10}                     cross multiply
15x=90                     Isolate the variable
x=6
Solve for y by cross multiplying then isolating the variable:
\frac{9}{15} = \frac{6}{y}          cross multiply
9y=90               Isolate the variable
y=10
4 0
3 years ago
Read 2 more answers
A person wishes to mix coffee worth $6 per pound with coffee worth $3 per pound to get a 120 pound of a mixture worth $4 per pou
NikAS [45]

Answer:

$720 and $360

Step-by-step explanation:

8 0
3 years ago
luis wants to buy a skateboard that usually sells for $79.99. all merchandise is discounted by 12%. what is the total cost of th
aivan3 [116]

<u>ANSWER: </u>

The total cost of the skate board is $74.61.

<u>SOLUTION: </u>

Given, Luis wants to buy a skateboard that usually sells for $79.99. all merchandise is discounted by 12%. luis has to pay a state sales tax of 6.75%.  

We need to find what is the total cost of the skateboard.

Final cost is nothing but original amount subtracted by discount and added with tax.

final cost = original cost – discount + sales tax

Original cost = $79.99

Discount = 12% of original cost

\begin{array}{l}{=12 \% \times 79.99} \\\\ {=\frac{12}{100} \times 79.99} \\\\ {=\frac{959.88}{100}} \\\\ {=9.5988}\end{array}

discount is $9.6 approximately

Sales tax = 6% of cost after discounting

\begin{array}{l}{=6 \% \times \text { (original cost - discount) }} \\\\ {=\frac{6}{100} \times(79.99-9.6)} \\\\ {=\frac{6}{100} \times(70.39)} \\\\ {=\frac{422.34}{100}} \\\\ {=4.2234}\end{array}

Sales tax is $4.22 approximately

Now, final cost = 79.99 – 9.6 + 4.22

= 84.21 - 9.6

= 74.61

Hence, the total cost of the skate board is $74.61

6 0
3 years ago
Please help!! In all honesty, I am absolutely terrible at math. Sometimes I get it, but most of the time I'm brain dead.
astraxan [27]
Im like 90% positive that x= 13
8 0
3 years ago
Do not use spaces in your answer. Solve for x. -5x + 12x - 8x = -24 x = ___ a0
const2013 [10]

Answer:

\Huge \boxed{x=24}

Step-by-step explanation:

-5x + 12x - 8x = -24

Combine all like terms.

(-5+ 12- 8)x = -24

-x=-24

Multiply both sides by -1.

x=24

7 0
3 years ago
Read 2 more answers
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