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3 years ago

When adding like fractions,why is the numerator the only part of the fraction that changes?

Mathematics

2 answers:

dolphi86 [110]3 years ago

8 0

Because youre adding parts of the fraction and not changing the amount of parts the fraction is divided in to.

Snezhnost [94]3 years ago

4 0

Well it depends on the problem. If the denominator isn't the same as the first fraction, then their will be a different number. But if its the same, than the numerator is the only part that will change because it adds on unto it..

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xeze [42]

Answer:

1/4 of the pizza

Step-by-step explanation:

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3 years ago

Please help.Please show the formula,thanks.

Yuki888 [10]

Answer:

DE=6.3

Step-by-step explanation:

triangles are similar so, its sides and angles are comgruent.

side BC=side DE

side BC=6.3

side DE=6.3

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3 years ago

Graph the equation using the slope and y-intercept y = -x + 3

Ulleksa [173]

Answer:

<h3>Explained Below:</h3><h3 />

Step-by-step explanation:

Your y-intercept is a positive three, so your starting point would start on positive three on the y-axis. Since your slope is a negative one, your line should be heading towards the bottom right corner (much like your last question).

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3 years ago

Read 2 more answers

H(x) = 5.7 −19x A. -127.3 B. -138.7 C. 0.67 D. 138.7

Vilka [71]

Answer:

x = 0.3 (see below)

Find the x intercept/zero.

To find x intercept/zero, subsitute H (x) = 0.

0 = 5.7 - 19x

Move the variable to the left hand side and change the symbol.

19x = 5.7

Now, divide both sides.

x = 0.3

Solution is 0.3

Alternate solution is x = 3/10.

Hope it helps!

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4 years ago

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liq [111]

for the first one, use Pythagoras theory to find the answer which is

opposite2+adjacent2=hypotenus2

the 2 behind all of them describe the square of all of them

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3 years ago