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Naily [24]
3 years ago
8

On a test Matilda answer 12 are the first 15 problems correctly at this rate continues how many of the next 25 problems while sh

e answered correctly?
Mathematics
1 answer:
Feliz [49]3 years ago
6 0
12/15=x/25
15x=300 so x=20
You might be interested in
Table:
Fynjy0 [20]

Answer:

2) Yes, each x-coordinate is only used once.

3) {1,2,3,4}

4) {25,45,60,70}

5) (3,60)

6) No because (4,7) and (4,25) share the same x-coordinate.

Step-by-step explanation:

A relation is a function if there is no more than one y-value assigned to an x.

Any x used can only be used once in an order pair.

You that here.

(1,25)

(2,45)

(3,60)

(4,70)

So basically because all of the x-coordinates are different, this is a function.

The domain is the x-coordinate of each pair (the first of each pair):

{1,2,3,4}.

The range is the y-coordinate of each pair (the second number of each pair):

{25,45,60,70}.

One ordered pair that I see in the table is (3,60). There are 3 others you can choose and I named them above.

{(4,10),(3,15),(1,5),(2,25),(4,25)} is not a function because there are more than one pairs with the same x-coordinate,4.  

3 0
4 years ago
Sheila was given $30.00 for her birthday and spent $18.79 on a CD. How much was her change?
Elis [28]

Answer:

<em>$11.21</em>

Step-by-step explanation:

$30.00 - $18.79 = $11.21

4 0
3 years ago
Read 2 more answers
Translate this sentence into an equation. 59 is the sum of 11 and Mai’s score
trapecia [35]

Answer:

11 + Mai's Score = 59

Step-by-step explanation:

You need to add 11 and Mai's score together to get 59, so with the values given we can make the equation 11 + Mai's Score = 59.

*depending on the question, Mai's score may need to be said as a letter variable, so:

If m = mai's score,

11 + m = 59

I hope this helped! :)

3 0
3 years ago
Read 2 more answers
I need help on this.
mote1985 [20]

Let's go:


7 = x

38 + x = 180

x = 180 - 38

x = 142°


7 = 142°


I hope I helped you



5 0
3 years ago
Pls help I’ll give the big brain award or whatever
andre [41]

Answer:

2

1

-0

-1

-2

1

Step-by-step explanation:

300x80=24,000

7 0
3 years ago
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