Why do you multiply the tax and the money 3.38 aren’t you supposed to add

1 answer:

7 0

The tax is simply the percentage of the amount you paid stacked on top of your total to go to the government. So you'd have your total, multiply the tax, and add that amount to your total.

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For each equation, determine whether it represents a direct variation, an inverse variation, or neither.

SSSSS [86.1K]

we know that in direct variation as x increase y also increases.

in indirect variation x decreases y increase and vice versa.

in part a we have x at top (numerator ) and y at denominator it mean indirect variation (as x increases y decreases).

to find k we know that for indirect variation xy=k

if we rewrite the equation x=9/y we get xy=9

which mean k=9 .

in part b we have 4xy=20 if we simplify this equation we get

$xy=20/4=5$

so here if we rewrite in terms of x.

we get x=5/y which represents indirect variation.

and we know xy=k

we have xy=5 .so k=5

8 0

3 years ago

Question In Picture, Thanks.

Ainat [17]

6z to the 4th power - 2z to the 3rd power

5 0

3 years ago

Write 0.0059 in scientific notation.

polet [3.4K]

Hi!

When we write a number in scientific notation, we write it like this:
N × $10^{x}$

N = a number between one and 10
x = negative if the decimal is moved to the right. positive if moved to the left.

Okay, so we need to move the decimal in the number <span>0.0059 to the right to make it between one and 10.
0.0059
00.059
000.59
0005.9
5.9

N = 5.9
5.9 </span>× $10^{-x}$

Since we moved the decimal to the right 3 times,
x = -3

5.9 × $10^{-3}$
^ the answer

Hope this helps! :)

7 0

3 years ago

Read 2 more answers

Simplify the following expression 5 3/10-7.8

True [87]

Answer:

-6.3

Step-by-step explanation:

6 0

3 years ago

Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .

kap26 [50]