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3 years ago

14

There is 100% of cats & dogs, 70% of dog and 30% of cats

2 answers:

Sloan [31]3 years ago

8 0

Say you have 100 cats and dogs well 70 of them are dog and 30 are cats. out of the 70 dogs 50 drink water and the other 20 eat food but the 30 cats took half of the dogs food and water so you would divide 2 into the 50 to get how much water the cats took of food and you would divide 2 into the 20 to get what the cats took of food from the dogs. so it would be 50/2=25 water and 20/2=10 food and then add those two numbers together to get 35

vampirchik [111]3 years ago

5 0

Answer:

why is your account deleted

Step-by-step explanation:

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Can someone help me?! i’m stuck between two.

QveST [7]

6 feet.
9.6/8= 1.2, so 1.2*5=6.

6 0

3 years ago

Help please!!! I really need it

jenyasd209 [6]

Answer:

140

Step-by-step explanation:

2000 divided by 7% will give you 140 hope it helps

6 0

3 years ago

What is the average rate of change for ƒ(x) = −3x + 79 over the interval 2 ≤ x ≤ 4?

Ainat [17]

Answer:

The average rate of change is -3.

Step-by-step explanation:

Given : Function $f(x)=-3x+79$ over the interval 2 ≤ x ≤ 4.

To find : What is the average rate of change ?

Solution :

Function $f(x)=-3x+79$ over [2,4]

The rate of change is the slope of the line,

So, $\text{Rate of change}=\frac{f(4)-f(2)}{4-2}$

$f(4)=-3(4)+79$

$f(4)=-12+79$

$f(4)=67$

$f(2)=-3(2)+79$

$f(2)=-6+79$

$f(2)=73$

Substitute,

$\text{Rate of change}=\frac{67-73}{4-2}$

$\text{Rate of change}=\frac{-6}{2}$

$\text{Rate of change}=-3$

Therefore, The average rate of change is -3.

8 0

3 years ago

Read 2 more answers

X+ y + z = -3<br> 3y - Z = 4<br> 2x- y - 2z = -5

snow_lady [41]

Answer:

(-3, 1, -1)

Step-by-step explanation:

x + y + z = -3 --> (1)
3y - z = 4 --> (2)
2x - y - 2z = -5 --> (3)

<u>Add up (1) and (2)</u>

x + 3y + y + z - z = -3 + 4 ⇒ x + 4y = 1 --> (4)

<u>Double (2) and subtract from (3)</u>

2x - y - 2z - 2(3y - z) = -5 - 2(4) ⇒ 2x - y - 2z - 6y + 2z = -5 - 8
2x - 7y = -13 --> (5)

<u>Double (4) and subtract (5)</u>

2(x + 4y) - 2x + 7y = 2 + 13 ⇒ 2x + 8y - 2x + 7y = 15 ⇒ 15y = 15 ⇒ y = 1

<u>Finding x</u>

x + 4(1) = 1 ⇒ x = 1 - 4 ⇒ x = -3

<u>Finding z</u>

-3 + 1 + z = -3 ⇒ z = -1

<u>So the answer is: </u>

(-3, 1, -1)

4 0

3 years ago

The cost of making a phone call is $0.40 plus $0.07 for each additional minute. Write an inequality) to find the number of minut

grandymaker [24]

Answer:

Step-by-step explanation

$20 but im not for sure so if im wrong im sorry

5 0

3 years ago