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3 years ago

8

Amy has 2 1/2 kilograms of grapes on the scale at the grocery store. She then puts an additional 50 grams of grapes on the scale

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What is the total weight, in grams, of the grapes Amy puts on the scale at the grocery store?

2 answers:

Jet001 [13]3 years ago

7 0

Answer:

2550 grams

Step-by-step explanation:

<u>Has on the scale</u>

2 1/2 kg = 2 kg and 500 g = 2500 g

<u>Added</u>

50 g

<u>Total</u>

2500 + 50 = 2550 g

galben [10]3 years ago

7 0

Answer:

the total weight is 2550 grams

Step-by-step explanation:

2 1/2 kilograms=5/2×1000grams=2500grams

if 50 grams is added

total weight in grams =2500grams+50grams=2550grams

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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.

Let's do this.

We are given $(1,10)$ is a point on our curve.

So when $x=1$ , $y=10$ .

$10=8 \cdot b^1$

$10=8 \cdot b$

Divide both sides by 8:

$\frac{10}{8}=b$

Reduce the fraction:

$\frac{5}{4}=b$

So the equation if it works out for the other point given is:

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

Let's try it. So the last point given that we need to satisfy is $(2,12.5)$ .

This says when $x=2$ , $y=12.5$ .

Let's replace $x$ with 2 and see what we get for $y$ :

$y=8 \cdot (\frac{5}{4})^2$

$y=8 \cdot \frac{25}{16}$

$y=\frac{8}{16} \cdot 25$

$y=\frac{1}{2} \cdot 25}$

$y=\frac{25}{2}$

$y=12.5$

So we are good. We have found an equation satisfying all 3 points given.

The equation is $y=8 \cdot (\frac{5}{4})^x$ .

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3 years ago

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ICE Princess25 [194]

9) Because the total number of pencils is 180 and you will use them up in 30 days, the equation will have to equal 0 total pencils when 30 is substituted in for the time factor, or x. This already takes our choice 3 because it doesn’t meet this criteria.
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Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.

natali 33 [55]

X = − 3 + 3+3i√3
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,3−3i√3
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Katarina [22]

Answer: X=10

Step-by-step explanation:

These are Corresponding angles meaning they are congruent. When 5x+19=7x-1 is solved the answer is x = 10 and each angle is 69 degrees

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Answer:

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Step-by-step explanation:

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