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2 years ago

How do you know whether to quanities x and y are proportional

1 answer:

5 0

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

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(4,?) is on the line below. Find the other half of the coordinate. y= 2 7 x−3 y=27x-3

valina [46]

If you meant y = 27x - 3, OK. Then, if x = 4, y = 27(4) - 3, or 108-3 = 105.

8 0

2 years ago

Solve lim x->0 (1+sinx)/cosx

morpeh [17]

Answer:

Step-by-step explanation:

(1+sinx)/cosx

(1+sin0)/cos0

(1+0)/1

1/1

:. Lim x->0 =1

4 0

2 years ago

Jessica and Mike are making presentations for a class project. Jessica's slideshow starts with a verbal introduction that is 16

uysha [10]

Answer:

they both has 7 slides and the presentation had a duration of 28 seconds

Step-by-step explanation:

we have to setup equation that makes them equal to each other if you know what i mean. 2x+16=3x+10

then we just solve for x

2x+16=3x+10

subtract 10 from each side

2x+6=3x

step 2 subtract 2x from each side

x=6

so both of their presentations are 7 slides long

then to find the length of their presentations we just plug in 6 to one of the equations

2(6)+16

2x6=12 12+16=28 so both of their presentations were 28 seconds

6 0

2 years ago

24=3x-16-8x thank you, sorry not to good at math

antiseptic1488 [7]

First, simplify the equation 3X-8X is -5X. So 24=16+-5X. Then subtract 16 from both sides. So you get 8=-5X. Then divide by -5.
So X= -8/5

7 0

2 years ago

Read 2 more answers

What is the value of ▲ in the equation shown?<br> 7x9=(7x10)-(7x▲ )

ahrayia [7]

Step-by-step explanation:

▲ =1

easy peasy........

7 0

2 years ago