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allsm [11]
2 years ago
5

Can someone please explain step by step on how I get my answer of [30% of 15?]

Mathematics
1 answer:
sasho [114]2 years ago
6 0

Answer: 4.5

Step-by-step explanation:

30% is equal to 30/100, which is 0.3

If you times 0.3 by 15, you will get 30% of 15

Therefore the answer would be 0.3 x 15 = 4.5

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Solve the literal equation for the variable t:
uysha [10]

Answer:

t=y÷x+3

Step-by-step explanation:

you have to isolate t

(I may have put the equation in the wrong order but I'm like 70% sure i got it)

5 0
2 years ago
Write and solve an equation to find the missing dimension of the prism
AlekseyPX

Step-by-step explanation:

EQUATION: Volume=length x width x height.

V=l×w×h

1620cm^3=9cm×9cm×xcm

1620cm^3=81cm^2 ×xcm

xcm= 1620cm^3/81cm^2

xcm= 20cm

6 0
3 years ago
Read 2 more answers
A restaurant purchased kitchen equipment on January​ 1, 2017. On January​ 1, 2019, the value of the equipment was ​$14 comma 550
timama [110]

Answer:

\frac{dV(t)}{dt} = - 1675.38

Step-by-step explanation:

In 2017, the vakue of the kitchen equipment was $14550

V(0)=$14550

Its value after then was modelled by V(t)=14550e^{-0.158t

We are required to find the rate of change in value on January 1, 2019

V(t)=14550e^{-0.158t

\frac{dV(t)}{dt} =\frac{d}{dt}14550e^{-0.158t

\frac{dV(t)}{dt} =14550 \frac{d}{dt}e^{-0.158t

\\Let u= -0.158t,\frac{du}{dt}=-0.158

\frac{dV(t)}{dt} =14550 \frac{d}{du}e^u\frac{du}{dt}

\frac{dV(t)}{dt} =14550 X -0.158 e^{-0.158t}=-2298.9e^{-0.158t}

In 2019, i.e. 2 years after, t=2

The rate of change of the value

\frac{dV(t)}{dt} =-2298.9e^{-0.158X2}

=\frac{dV(t)}{dt} =-2298.9e^{-0.316}= - 1675.38

3 0
3 years ago
What is the algebraic expression for f divided by 10
erica [24]

Answer:

f ÷ 10

Step-by-step explanation:

We  want to write an expression

divided by means the number or variable before comes first, then the divided by symbol, then what comes after

f ÷ 10

7 0
2 years ago
Read 2 more answers
5. A solid has a circle of radius r as its base. All sections of the solid perpendicular to the diameter along the x-axis are is
AleksandrR [38]

Answer:

 \frac{16r^3}{3}

Step-by-step explanation:

In this cross sections problem, we can integrate from -r to +r (so that the integral covers the entire base of the solid).

\int\limits^r_a {2(x^2+r^2 )} \, dx

The formatting for the integral did not let me put -r on the lower bound, so i replaced it with a, just know that a represents -r here.

Evaluating the integral gives use that it is equal to;

\frac{16r^3}{3}

Caution: this answer may not meet your needs, but this is the answer I have come up with with the given information.

If you found this answer helpful please consider leaving 5 stars, giving it a like, or if you asked this question, mark this answer as Brainliest. Thanks!

4 0
3 years ago
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