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3 years ago

11

Please help Ive been stuck on this!

2 answers:

Agata [3.3K]3 years ago

7 0

Your classmate is correct because 300-120=180 180/120=1.5 1.5 converted tp a percent is 150%

Debora [2.8K]3 years ago

7 0

To do the math, you take the price they bought it for, (120) and multiply by the the markup price this a decimal. (120 • 1.50) which gets you 180. You then add 120 and 180. If you get 300, your classmate is correct. If you don't, your classmate is wrong. :)

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Solve the following equation 3(x+6) =4(2x-8)

Sloan [31]

Answer:

x=10

Step-by-step explanation:

3(x+6)=4(2x-8)

3x+18=8x-32

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2 years ago

Read 2 more answers

1. What is 72% of 175?<br>A. 1.26<br>B. 12.6<br>C. 126<br>D. 1,260

stealth61 [152]

IT IS C

Explanation:

72% of 175

=72/100 (175)

=12600/100

=126

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2 years ago

ivanzaharov [21]

Answer:

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2 years ago

Solve the equation for x

PIT_PIT [208]

Answer:

$\bold{x=\frac{-6+z}6=-1+\frac z6}$

Step-by-step explanation:

$\bold{x-6+5x=-12+z}\\{}\quad +6\qquad\quad\ +6\\{\quad}\bold{6x\ =\ -6+z}\\{}\quad\div6\quad\ \ \div6\\{}\quad \bold{x=\frac{-6+z}6=-1+\frac z6}$

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3 years ago

A water tank has a square base of area 5 square meters. Initially the tank contains 70 cubic meters. Water leaves the tank, star

ANEK [815]

Answer:

$9.2\ \text{m}$

Step-by-step explanation:

$b$ = Surface area of base = 5 square meters

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The rate at which the volume is reducing is

$\dfrac{dV}{dt}=2+4t\\\Rightarrow dV=2+4tdt$

Integrating from $t=0$ to $t=3$

$V=\int^3_0(2+4t)dt\\\Rightarrow V=2t+2t^2|_0^3\\\Rightarrow V=2\times 3+2\times 3^2-0\\\Rightarrow V=24$

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Suface area of base $\times$ depth = Volume

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The depth of the water remaining in the tank is $9.2\ \text{m}$ .

3 0

2 years ago