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3 years ago

When it comes to finding the common denominator, do I add or subtract it to the denominator

Mathematics

2 answers:

MArishka [77]3 years ago

6 0

Answer:

when you find the common denominators you find the LCM.

Step-by-step explanation:

Aloiza [94]3 years ago

5 0

Answer: Subtract

Step-by-step explanation: Make your denominator equal using the concept of LCM, then subtract the numerators accordingly. Rewrite each fraction to its equivilent fraction with a denominator equal to the LCM=30, then you need to subtract the numberators, but make sure to reduce your answer to the lowest possible term. I hope this helps.

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What is the answer to this question plss and thank you

cluponka [151]

A defines the function

f(1) = - 8 ×( $\frac{5}{2} )^{0}$ = - 8 × 1 = -8

f(2) = - 8 ×( $\frac{5}{2}) ^{1}$ = - $\frac{(8.5)}{2}$ = - 20

f(3) = - 8 ×( $\frac{5}{2}) ^{2}$ = - 8 × $\frac{25}{4}$ = - 50

f(4)= - 8 ×( $\frac{5}{2}) ^{3}$ = - 8 × $\frac{125}{8}$ = -125

f(5) = - 8 ×( $\frac{5}{2}) ^{4}$ = - 8 × $\frac{625}{16}$ = - $\frac{625}{2}$

4 0

3 years ago

At a restaurant, three salads, two sandwiches, and one drink cost $17.75. One salad, one sandwich, and three drinks cost $10.75.

Leno4ka [110]

Answer:

A salad costs $2.50

A sandwich costs $4.50

A drink costs $1.25

Step-by-step explanation:

Let x represent the salad, y represent the sandwich, and z represent the drink.

Since three salads, two sandwiches, and one drink cost $17.75:

3x + 2y + z = 17.75 (1)

Since one salad, one sandwich, and three drinks cost $10.75:

x + y + 3z = 10.75 (2)

Since a salad costs twice as much as a drink:

x = 2z (3)

Multiply the equation 2 by -2 then, sum the equation 1 and equation 2:

-2x - 2y - 6z = -21.50

3x + 2y + z = 17.75

→ x - 5z = -3.75

Replace the x with 2z using equation 3:

2z - 5z = -3.75

-3z = -3.75

z = 1.25

x = 2z → x = 2.50

x + y + 3z = 10.75 → 2.50 + y + 3.75 = 10.75 → y + 6.25 = 10.75 → y = 4.50

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3 years ago

Using the technique in the model above, find the missing sides in this 30° 600-90 right triangle.longShort 7Hypotenuse3.571314

dalvyx [7]

The answer to this is 14. To find the hypotenuse from the short do 2S, and for Short to Long it is S Root 3.

Hope this helped! Please Mark as Brainliest!

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3 years ago

Ellie is ordering hot dogs for her son's birthday party. Each hot dog cost $1.50. For orders smaller than a dozen hot dogs, ther

Juliette [100K]

Answer:

Step-by-step explanation:

If the person only ordering one hotdog which is 1.50 dollars why should they have to pay 3 dollars

7 0

3 years ago

Read 2 more answers

Determine any data values that are missing from the tablo, assuming that the data represent a linear function.

mina [271]

Answer:

Step-by-step explanation:

Missing xx:1 Missing y:5

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2 years ago

When it comes to finding the common denominator, do I add or subtract it to the denominator ​

When it comes to finding the common denominator, do I add or subtract it to the denominator