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3 years ago

And aquarium tank holds 95 L of water how much is this an gallons use the following conversion 1 gallon is 3.8 L

Mathematics

1 answer:

Alika [10]3 years ago

4 0

Answer:

Step-by-step explanation:

$\text{95 Liters} * \dfrac{1 gallon}{3.8 Liters} = \text{25 gallons}$

This is called dimensional analysis. The set of brackets on the left should have a unit cancel with the current unit.

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Which choice is equivalent to the expression below?

Andre45 [30]

Answer:

C. $4\sqrt{7} -4x\sqrt{7}$ is correct

Steps:

$4\sqrt{7} -3\sqrt{7}x-x\sqrt{7} \\\\4\sqrt{7} -3\sqrt{7} x-\sqrt{7} x\\\\4\sqrt{7} +(-3\sqrt{7} x-\sqrt{7} x)\\\\4\sqrt{7} -4\sqrt{7} x$

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3 years ago

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What is the value of x in the equation 4x + 8y=40 when y=0.8

Fed [463]

8*.8=6.4
4x+6.4=40
40-6.4=33.6
33.6/4=x
8.4=x

Hope this helps :)

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4 years ago

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Last year, Susan had 10,000 to invest. She invested some of it in an account that paid 6%

katrin2010 [14]

Answer:

In the account that paid 6% Susan invest $\$6,000$

In the account that paid 5% Susan invest $\$4,000$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

Part a) account that paid 6% simple interest per year

in this problem we have

$t=1\ years\\ P=\$x\\r=0.06$

substitute in the formula above

$I1=x(0.06*1)$

$I1=0.06x$

Part b) account that paid 5% simple interest per year

in this problem we have

$t=1\ years\\ P=\$10,000-\$x\\r=0.05$

substitute in the formula above

$I2=(10,000-x)(0.05*1)$

$I2=500-0.05x$

we know that

$I1+I2=\$560$

substitute and solve for x

$0.06x+500-0.05x=560$

$0.01x=560-500$

$0.01x=60$

$x=\$6.000$

therefore

In the account that paid 6% Susan invest $\$6,000$

In the account that paid 5% Susan invest $\$4,000$

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3 years ago

You and your friends have decided to camp for a night. Your friend claims the area of his tent is 408 m2. Work out the area of h

slamgirl [31]

We know that
area of the tent=length*breath
length=240 cm---convert to m---> 240/100----> 2.40 m
breath=170 cm----convert to m---> 170/100----> 1.70 m

find the area
area=2.40*1.70-----> area=4.08 m²

therefore

the answer is
the friend's statement is incorrect the area is 4.08 m²

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3 years ago

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If I cut a piece that was 5 centimeters wide and had an area of 20 centimeters. How long was the piece?

Soloha48 [4]

Area= Length x width
So....
Length= Area divided by width.
Plug in equation
20 divided by 5= L
L= 4
Answer is 4 cm

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3 years ago

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