3 years ago

Pls answer fast. will give brainliest (v2)

Mathematics

1 answer:

Alinara [238K]3 years ago

4 0

Answer:

Account B principle for B=400, principle for A=200

Step-by-step explanation:

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Jaleesa bought a movie online. She paid $19.00 plus tax. The sales tax was 9%. How much did she pay in sales tax?

boyakko [2]

Answer: she paid $1.71 in sales tax.

Step-by-step explanation:

Find 9 percent of 19 to find the sale tax.

9% of 19 =

0.09 * 19 = 1.71

This means she paid $1.71 in sales tax.

7 0

4 years ago

please check my answer asap! brainliest for fastest correct answer! find the area of the triangle. thank you!

Hitman42 [59]

Answer:

11.55 m^2

Step-by-step explanation:

The area is 11.55 bc the area of a triangle is A =1/2*b*h

4.2*1/2*5.5= 11.55

8 0

4 years ago

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After going through all of your expenses for the month, you can up with the expression -2(x+3) – 5(2x – 7). Simplify the express

svlad2 [7]

Answer:

-12x+29

Step-by-step explanation:

= -2(x+3) – 5(2x – 7)

= -2(x)+(-2)(3)-5(2x)-5(-7)

= -2x-6-10x+35

= -2x-10x-6+35

= -12x+29

7 0

3 years ago

Read 2 more answers

Convert 3,200,000 to scientific notation

Crank

Answer:

Step-by-step explanation:

3.2x10^6

4 0

3 years ago

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Explain whether the following given sets are closed under addition:

Ivan

Answer:

Step-by-step explanation:

a) Yes.

$\forall\ a,b\ \in\ B,\ a+b\in B\ (since\ 0+0=0)$

b) Yes

$W=\{0,1,2,3,..,\}\ (whole\ numbers)\\\forall\ a,b\ \in\ 3W,\ a+b\in 3W\\since:\\a\ \in\ 3W \Longrightarrow\ \exists\ k_1\in W | a=3*k_1\\\\b\ \in\ 3W \Longrightarrow\ \exists\ k_2\in W | b=3*k_2\\\\a+b=3*k_1+3*k_2=3*(k_1+k_2) \in 3W\\$

c) Yes

$\forall n\ \in\ \mathbb{N}: \Longrightarrow\ n+1 \in\ \mathbb{N}\\$

d) No

$3\in V , 3+3=6\notin V\\$

7 0

3 years ago