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2 years ago

HELP PLEASE BEST ANSWER WILL BE MARK AS BRAINLIEST!!

1 answer:

4 0

First of all,
The total weight of the six dogs are:
71+34+15+23+18+56=217 pounds
Then, we know that the average weight of the seven dogs are 40 pounds, so the total weights of the seven dogs are:
40×7=280 pounds.
Lastly, we know that the six dogs weights are 217 pounds and the total weight of the seven dogs are 280 dogs, so the seventh weight of the dog is:
280-217=63 pounds. As a result, the seventh weight of the dogs at the vet is 63 pounds. Hope it help!

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Homework Help! ASAP

Mariana [72]

Answer:

The cost of apple juice per ounce is 20 cents.

Explanation:

We know that a

ounce bottle is

3.20

and we want to find how much per ounce is.

So we set up a proportion and let

be the cost of one ounce:

3.20

Now we can cross multiply:

3.20

Divide both sides by

3.20

Therefore,

0.20

The cost of apple juice per ounce is 20 cents.

Hope this helps!

Step-by-step explanation:

3 0

3 years ago

The decay of 277 mg of an isotope is described by the function A(t)= 277e-0.019t, where t is time in years. Find the amount left

UNO [17]

<span>The decay of 277 mg of an isotope is described by the function
A(t)= 277e-0.019t,
where t is time in years.
To find the amount left after 64 years,

We substitute t = 64 in the expression.
</span>A(t=64)= 277e-0.019(64)
or A(t=64) = 277 * e-1.216
= 277 * 0.29
= 82 mg

4 0

3 years ago

Guys so it says pick which one is true and!!! I can’t really find out now there is four more left thank you to the people who ar

Masja [62]

Answer:

Your answer is

B. C. And. E

Hope it will help :)❤

6 0

2 years ago

The FDA has established that the concentration of a certain pesticide in apples may not exceed 10 ppb. A random sample of 100 ap

ki77a [65]

Answer:

Step-by-step explanation:

(10.03 - 10)/(.12/sqrt 100) = 2.5

P(Z > 2.5) = .0062

p-value = .0062. The apples are not within the FDA requirement

4 0

3 years ago

POSSIBLE POINTS: 2

serious [3.7K]

Answer: max capacity is 1625 gallons.

Diagram is shown below.

=========================================================

Explanation:

We'll draw two horizontal number lines to help make a comparison or connection between percentages and tank capacity.

For the top number line, make 5 sections with the labels: 0%, 20%, 40%, 60%, 100%. The reason I'm picking 5 is because 40% = 40/100 = 2/5. So having 40% capacity means we're 2/5 full. That denominator 5 tells us how to subdivide each number line.

The bottom number line will also have 5 sections. We only know one label for this bottom portion right now. That label is 650. Place this directly under the "40%". This visually is one way to represent that 650 gallons is 40% filled. See the diagram below.

Cut the 650 in half to get 325. This corresponds to 40% cut in half to get 20%. Therefore, 325 will go under the 20%. Being 20% full means we have 325 gallons of water.

To figure out the 60% portion, we will multiply 325 by 3. This is because 3*20% = 60%, so 3*325 = 975. We'll write "975 gallons" under the "60%"

Then we have 1300 gallons under the 80% since 4*325 = 1300. Note how 4*20% = 80%, so that's where the '4' multiplier comes from.

Finally, we multiply 325 by 5 to get 1625 and that represents the full tank's capacity. Technically we could have just jumped to this directly without having to find the 60% or 80% capacity values, but it's good practice I think.

Again the diagram is shown below. The answer we're after is at the very bottom right corner. It's under the 100% to indicate the tank is completely full, or has reached max capacity.

-----------------------

Here's a way to find the answer without a double number line. This method involves setting up a proportion.

(40% full)/(650 gallons) = (100% full)/(x gallons)

40/650 = 100/x

40x = 650*100

40x = 65000

x = 65000/40

x = 1625

We confirm that the tank's max capacity is 1625 gallons.

4 0

2 years ago