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lara31 [8.8K]
2 years ago
13

There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth grader

s. How many students are eighth graders?
Mathematics
2 answers:
RSB [31]2 years ago
8 0

Answer:

420

Step-by-step explanation:

natka813 [3]2 years ago
5 0

Answer:

the answer is 420

Step-by-step explanation:

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The caplan family was going to New York City to ring in the New Year. 16 family members each paid $341 for their plane ticket to
Usimov [2.4K]
1 persona pagaba 341 por ida y 298 por venido lo que significa que 1 persona paga en total= 639
si son 16 seria= 639*16=10224 en total
3 0
3 years ago
Can someone help me find the answer and find out how to get the answer for X, Y, T, W, and Z
alexandr1967 [171]

would it be 90 ? because of the big angle

7 0
3 years ago
How many solutions does the system have? \begin{cases} 3x+y=8 \\\\ 2x+2y=8 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ 3x+y=8 2x+2y=8 ​ Choose 1
ELEN [110]

Answer:

This system has one solution (x=2 and y=2), then the answer is A.

Step-by-step explanation:

The system of equations is:

3x+y=8 (1)

2x+2y=8 (2)

Let's multiply the first equation by 2 and subtract it to the second equation  

6x-2x+2y-2y=16-8

4x=8  

x=2

Using this value in (1) we can find y.

3(2)+y=8

6+y=8

y=2

Therefore, this system has one solution (x=2 and y=2), the answer is A.

I hope it helps you!

3 0
3 years ago
a farmer is buying fencing to surround a square field of area 3600m^2. What length of fencing does he need to buy?
kirill115 [55]

Answer:

240 m

Step-by-step explanation:

The area of a square field is 3600 m².

We need to find the length of fencing he needs to buy. It means we need to find the perimeter of the field.

The area of a square field is given by :

A = side²

So,

s=\sqrt{3600} \ m\\\\s=60\ m

Length of fencing = perimeter

= 4(s)

= 4(60)

= 240 m

So, he would need to buy 240 m of fencing.

8 0
3 years ago
3. A ladder is 50 feet and cast a 25 foot shadow. Mark is 6 feet how long would his shadow be?
Gala2k [10]

Answer:

3 feet

Step-by-step explanation:

half his height

6 0
2 years ago
Read 2 more answers
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