Ask question

Ask question

All categories

3 years ago

6

Part of the population of 7000 oak in a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that four

of them are infection. How many elks are infected?

1 answer:

lbvjy [14]3 years ago

7 0

Answer:

Answer is 560

Refer below.

Step-by-step explanation:

4/50=x/7000

50x=28000

X=560

You might be interested in

Please help me with this! I need this ASAP! Please help!

sladkih [1.3K]

Answer:

The 2nd and 3rd boxes are right, that is :-

* 2b is a term

and

* 9 is a constant

7 0

2 years ago

miss watson runs a distance of 200m in 25 seconds work out the average speed of miss watson in metres per second

Kobotan [32]

Answer:

8 meters per second

Step-by-step explanation:

l

4 0

2 years ago

(2/5)^-2(-3)^4<br><br> What is the equivalent?

Nikolay [14]

Answer:

-8100

Step-by-step explanation:

(2/5)^-2(-3)^4

Given data

and second term

The first term= (2/5)^-2 and

Second term=(-3)^4

Simplify the first term

(2/5)^-2= 2^-2/ 5^-2= 1/2^2 * 1/5^2

=1/4/ 1/25

=1/4*25/1

=100

Simplify the second term

=(-3)^4

= -81

Hence, 100*81

=-8100

8 0

2 years ago

Grace wants to buy gumballs out of a vending machine in an airport. Two gumballs cost $0.80. If Grace uses exact change, in how

devlian [24]

She could use the following methods:
8 dimes
16 nickles
2 quarter and 3 dimes
2 quarters and 6 nickles
so, 4 combos

4 0

3 years ago

Rafael wants to earn at least $45 trimming trees. He charges $8 per hour and pays $3 in equipment fees. What are the possible nu

pshichka [43]

Answer:

6 $\leq$ r

Step-by-step explanation:

45 $\leq$ 8r-3

48 $\leq$ 8r

6 $\leq$ r

8 0

3 years ago