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horsena [70]
3 years ago
10

3 1/2 - 4 2/5 how do i do this?

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
5 0

Answer:

Ok so first you would have to turn them into improper fractions which is

3 \frac{1}{2\\} = \frac{7}{2} and 4 \frac{2}{5} = \frac{22}{5}

So now that you have made them both improper fractions you have to find common denominators.

To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take \frac{22}{5} and mutiply both numbers by 2 and get \frac{44}{10}. Then mutiply both numbers in \frac{7}{2} by 5 to get a common denominator.

\frac{35}{10}

\frac{35}{10} - \frac{44}{10} =35 - 44 = -9 so your answer is -\frac{9}{10}

Step-by-step explanation:

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HELP ME ASAP PLS
Katarina [22]

Answer:

Tommy had 56 cents in start and Loren had 7 cents in start.

Step-by-step explanation:

Let,

x be the money Tommy have.

y be the money Loren have.

According to given statement;

Tommy had 8 times more money than Loren.

x = 8y     Eqn 1

Parents gave 35 cents to Loren and Tommy spent 14 cents, therefore

x-14=y+35    Eqn 2

Putting x=8y in Eqn 2

8y-14=y+35\\8y-y=35+14\\7y=49

Dividing both sides by 7

\frac{7y}{7}=\frac{49}{7}\\y=7

Putting y=7 in Eqn 1

x=8(7)\\x=56

Hence,

Tommy had 56 cents in start and Loren had 7 cents in start.

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2 years ago
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stepan [7]

Answer:

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Step-by-step explanation:

7 0
2 years ago
if Ethan Buy 100Tv All the Tv Cost 3,000$,If he sold all his Tv With 1,800$.How Many money will he have than?
jolli1 [7]
I don't know if that is 100 tvs or one 100 inch tv. 

If it is 100 tvs then the person would have 301,800 dollars.
3,000 times 1000 plus 1800 equals= 301,800

If it is one 100 inch tv then the person would have 4,800 dollars
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3 years ago
The face of a triangular shaped guitar has an area of 52 in.² and a height of 13 inches. Write an equation to find the length of
Neko [114]
Area of a triangle can be calculated as:

Area = 0.5 x Base x Height

Area is given to be 52 in²
Height is 13 inches.
We are to find the base b of the triangular shaped guitar.

Using the values in above formula, we get:

52=0.5(13)(b) \\  \\ 
b= \frac{52}{0.5(13)} \\  \\ 
b=8

Thus the base of triangular shaped guitar will be 8 inches. 
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3 years ago
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Darya [45]
A.43 72-12=60+3=63-20=43

20 came from temperature dropping 2 degrees every 30 minutes for 5 hours means that it dropped a total of 10 times, and 10x2=20 so the answer is 43
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