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3 years ago

7

Five out of eight birds that visited the feeder ate the birdseed. If 60 ate the birdseed today, how many birds visited the feede

r?

2 answers:

ohaa [14]3 years ago

8 0

Answer:

96

Step-by-step explanation:

Cross multiply and divide to find the answer.

5/8 = 60/?

8 x 60 = 480

480 / 5 = 96

Oksi-84 [34.3K]3 years ago

5 0

Answer:

98 birds

Step-by-step explanation:

5/8=0.625

60*0.625=37.5

And since you cannot have half a bird, you will round up to 38 birds

So you will do 60(Birds that ate)+38(Birds that just visited)

Which ends up being 98 birds total

Hope this helps!

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Write three rational expressions that simplify to (x+1)/(x-1)

Dmitry [639]

Answer:

x^2 / x(x+1)

x^3 / x^2(x+1)

2x / 2(x+1)

Step-by-step explanation:

5 0

4 years ago

Find the missing values for the exponential function represented by the table below.

Finger [1]

Answer:

x y

-2 7

-1 10.5

0 15.75

1 23.625

2 35.4375

Step-by-step explanation:

The general equation of the exponential function is $y=ab^x$ .

We know from our table that when $x=0$ , $y=15.75$ . Let's replace those values in our equation:

$y=ab^x$

$15.75=ab^0$

Remember that $b^0=1$ , so:

$15.75=a(1)$

$15.75=a$

$a=15.75$

We also know from our table that when $x=-1$ , $y=10.5$ . Let's replace the values again:

$y=ab^x$

$10.5=ab^{-1}$

But we now know that $a=15.75$ , so let's replace that value as well:

$10.5=15.75b^{-1}$

Remember that $b^{-1}=\frac{1}{b}$ , so:

$10.5=\frac{15.75}{b}$

$10.5b=15.75$

$b=\frac{15.75}{10.5}$

$b=1.5$

Now, we can put it all together to complete our exponential function:

$y=ab^x$

$y=15.75(1.5)^x$

To find the missing values, we just need to evaluate our function at $x=1$ and $x=2$ :

- For $x=1$

$y=15.75(1.5)^x$

$y=15.75(1.5)^1$

$y=23.625$

- For $x=2$

$y=15.75(1.5)^x$

$y=15.75(1.5)^2$

$y=35.4375$

3 0

4 years ago

R is the midpoint of FG <br> FR=27 find GR<br><br> If u can please explain too

Usimov [2.4K]

Answer: GR = 27

Step-by-step explanation:

Given: R is the midpoint of FG.

i.e. R bisects FG into two equal parts as FR and GR. [Midpoint divides a line into two equal parts.]

or we can write FR = GR

Since it is given that FR = 27

Then from (i) , GR = FR = 27

i.e. GR = 27

Hence, GR = 27 , which is the required solution.

7 0

4 years ago

Jen and Jason recently opened a savings account. Jen made an inital deposit of $350 and will put in an additional $25 every week

ycow [4]

Find how long it take to have the same balance
Write the expressions represent the savings of Jen and the savings of Jason
For an instance, w stands for the number of weeks they take to have the same balance.

Jen ⇒ initial $350, additional $25/week, the expression will be
350 + 25w
Jason ⇒ initial $470, additional $15/week, the expression will be
470 + 15w

Then find the value of w using equation Jen's expression and Jason's expression
350 + 25w = 470 + 15w
25w - 15w = 470 - 350
10w = 120
w = 120/10
w = 12

They have the same balance in 12 weeks

Find how much each of them has in 12 weeks
350 + 25w
= 350 + 25(12)
= 350 + 300
= 650

They have each $650 in 12 weeks

5 0

3 years ago

Ndjchjbsbhjdcwgjhcghjwdbhuchjsuhvdb... Help

dalvyx [7]

Answer:

40

Step-by-step explanation:

6 0

3 years ago