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zimovet [89]
3 years ago
15

Can somebody help me on this and if so please answer correctly​

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
4 0
The answer is A. Good luck man!! :)
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In a certain region, the number of children who have been vaccinated against rubella is twice the number who have been vaccinate
MatroZZZ [7]

Answer:

C. 10 000

Step-by-step explanation:

If we called:

x = children who have been vacinated against rubella only

2x = children who have been vaccinated against mumps

y = children who have been vaccinated agains both

Children who have been vaccinated against mumps only = x - y

And we know that y = 2*(x-y)

=> 2y = 3x

y = 5000

There fore x = 7500

The number of children who have been vaccinated against rubella

= 2x - y = 2*7500 - 5000 = 15 000 - 5000 = 10 000

4 0
3 years ago
Assume that y varies directly with x then solve y = 2.5 x = .5 when x = 20
velikii [3]

Step-by-step explanation:

y=2.5| ?

x=0.5| 20

It'll be criss-crossed then it'll be:-

2.5×20=50

5 0
2 years ago
Convert y + 3 = -3(x + 5) to standard form.
emmasim [6.3K]
Hi there!

y  + 3 =  - 3(x + 5)
First we need to work out the parenthesis, which can for instance be done using rainbow technique.

y + 3 =  - 3x  -  15
Now subtract 3 from both sides.

y =  - 3x  - 18
And finally add 3x to both sides.

3x + y =  - 18
The 4th answer choice is correct.



6 0
3 years ago
Summer is approaching, so workers at the Lawrenceville Community Center are filling the pool. The volume of water in the pool x
Vanyuwa [196]

9514 1404 393

Answer:

  The pool is being filled

Step-by-step explanation:

The function definition tells you ...

  f(5) = the volume of water in the pool 5 minutes after they start

  f(10) = the volume of water in the pool 10 minutes after they start

So, the inequality ...

  f(5) < f(10)

means the volume of water in the pool 10 minutes after they start is greater than it is 5 minutes after they start. In short, <em>they are filling the pool</em>.

8 0
3 years ago
A fruit salad recipe requires 4 cups of grapes per 8 servings. How many cups of grapes are required for 28 servings? A) 6 Cups B
Dafna1 [17]

Answer:

D) 14 Cups

Step-by-step explanation:

4 0
3 years ago
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