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2 years ago

Help!!! I'm stuck on this

Mathematics

1 answer:

Mariana [72]2 years ago

8 0

So c=3 years old and a= 25 ml (dose of adults)
so dose of child P=(3/3+12)*25=3/15*25=5 ml

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18. When y = x?, which of the following expressions is<br> equivalent to -y ?

vitfil [10]

Answer:

-y=-x

The problem:

y=x then -y=?

Step-by-step explanation:

If y=x, then -y=-x.

Just like if u=9, then -u=-9.

Or, if -m=8, then m=-8.

5 0

2 years ago

Me ayuden por favor es para Hoy ✌✌

DIA [1.3K]

ninguna de las preguntas se puede dividir, pero puede simplificar la última.

Lo siento pero, Espero que esto sea de ayuda!

8 0

2 years ago

Carly tried to solve an equation step by step. 7a=28 Step 1: 7a/a = 28/7 Step 2: 7 = 4 Find Carly's mistake A: Step 1 B: Step 2

Murrr4er [49]

This are the right steps

Step 1: first you divide the both size by 7 because there is 7 a's

7a/7 = 28/7

Step 2: You solve the equation

7a/7= a. 28/7 = 4

So, the answer is a = 4

not 7 = 4

6 0

2 years ago

Of Bernie's insect collection, 15 out of 25 insects are butterflies. Which of the following is not another way of expressing 15

koban [17]

B is the answer for ur question :D

8 0

2 years ago

Henry ran five races, each of which was a different positive integer number of

dolphi86 [110]

Answer:

10 miles.

Step-by-step explanation:

Let x be the number of miles on Henry's longest race.

We have been given that Henry ran five races, each of which was a different positive integer number of miles.

We can set an equation for the average of races as:

$\frac{\text{The sum distances of 5 races}}{5}=4$

As distance covered in each race is a different positive integer, so let his first four races be 1, 2, 3, 4.

Now let us substitute the distances of 5 races as:

$\frac{1+2+3+4+x}{5}=4$

$\frac{10+x}{5}=4$

Let us multiply both sides of our equation by 5.

$\frac{10+x}{5}*5=4*5$

$10+x=20$

Let us subtract 10 from both sides of our equation.

$10-10+x=20-10$

$x=10$

Therefore, the maximum possible distance of Henry's longest race is 10 miles.

7 0

2 years ago