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iren [92.7K]
3 years ago
7

after 3 new students joined, the class had 26 students. which equations can be used to find n, the number of students in class b

efore the 3 new students joined?
Mathematics
1 answer:
Scilla [17]3 years ago
7 0

Answer:

23 were there

Step-by-step explanation:

26 - 3 = 25

helped

A: 3n =26

B: n - 3 =26

C: n + 3 =26

D n/3 =26

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5 0
3 years ago
Can someone tell me if i got this right? its all i need
Alexxx [7]

Answer:

No, the answer is 120 plants per square foot

Step-by-step explanation:

What I did was first figure up the area of the triangle. You want to do this because the area will tell you how many square feet are in the garden. In order to find this, you need to use this formula: 1/2 b·h

Plug in the numbers like this: 1/2·15·8

15 is the base of the triangle, while 8 is the height of the triangle. Now solve your equation.

15·8=120

1/2·120=60

Area = 60

Now you know that the area is 60ft². So there are 60 square feet in the whole garden. But, we're not done yet. Jessica wants to put 2 plants in every 1 square foot. So now, we need to multiply 60 by 2 in order to get 2 plants in every 1 square foot.

60·2=120

Jessica can put 120 plants in the garden if she is wanting 2 plants per square foot.

I hope this makes sense and is easy to understand. Please let me know if you need any more help or clarification. I'm always happy to help! Have a great day and good luck!!

4 0
2 years ago
2abc - 3ab = -30? if a =2, b = -3 and c= 4
velikii [3]

Is your question true or false?

2abc - 3ab = -30? if a =2, b = -3 and c= 4

plug in

2(2)(-3)(4) - 3(2)(-3) = -30

Simplify

-48 + 18 = -30

-30 = -30

Both sides are equal so

It's true.


6 0
3 years ago
16. Two years of local phone service costs $883, including
Evgen [1.6K]

Answer:

The monthly fee would be $23

Step-by-step explanation:

hope it helps mark as brainllest if help!!!

3 0
2 years ago
25 tons equals how many pounds?
charle [14.2K]

It equals 50,000 pounds

6 0
3 years ago
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