Consider the system of linear equations.<br><br> 2y = x + 10<br><br> 3y = 3x + 15

How to figure it out

harkovskaia [24]

Have
.5x+.10y+.20z=380

8 0

2 years ago

If the relationship is proportional, what is the missing value from the table? x y –3 –1 –12 ? –30 –10 –8 –6 –5 –4

Ann [662]

Answer:

-4

Step-by-step explanation:

I got it wrong and it showed me the answer.

7 0

3 years ago

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A 100 centimeter stick broke into 3 pieces one piece was 7 centimeters long and another was 34 centimeters long how long was the

emmasim [6.3K]

The third piece is 59 cm long.

Add the first two pieces up. 7+34= 41. Since the whole stick is 100 cm long, subtract 41 from 100 to find the length of the third piece. 100-41=59.

6 0

3 years ago

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Please guys the surface area of the pyramid... I will mark you brainliest

Alex

Answer:

I can answer this but all you have to do is get the length, weight, and height and multiply it. I was going to do it but I could it find the height, and width.

8 0

2 years ago

Function f is an exponential function. It predicts the value of a famous painting, in thousands of dollars, as a function of the

nalin [4]

Answer:

$y=8 \cdot (\frac{5}{4})^x$

$f(x)=8 \cdot (\frac{5}{4})^x$

or

$f(x)=8 \cdot (1.25)^x$

Step-by-step explanation:

We are going to see if the exponential curve is of the form:

$y=a \cdot b^x$ , ( $b\neq 0$ ).

If you are given the $y-$ intercept, then $a$ is easy to find.

It is just the $y-$ coordinate of the $y-$ intercept is your value for $a$ .

(Why? The $y-$ intercept happens when $x=0$ . Replacing $x$ with 0 gives $y=a \cdot b^0=a \cdot 1=a$ . This says when $x=0 \text{ that} y=a$ .)

So $a=8$ .

So our function so far looks like this:

$y=8 \cdot b^x$

Now to find $b$ we need another point. We have two more points. So we will find $b$ using one of them and verify for our resulting equation works for the other.