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yuradex [85]
2 years ago
11

2a + 3(6a + 5z) – 4z answer quickly please i gotta do this before tn

Mathematics
1 answer:
WITCHER [35]2 years ago
4 0
20a + 11z
That's the answer ...
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A small auditorium has 10 rows of seats. There are 12 seats in the row and 16 seats in the second row the number of seats in a r
guapka [62]

This problem can be solved through simple arithmetic progression

Let

a1 = the first term of the sequence

a(n) = the nth term of the sequence

n = number of terms

d = common difference

Sn = sum of all terms

 

given

a1 = 12

a2 = 16

n = 10

 

d = 16 -12 = 4

@n = 10

a(n) = a1 + (n-1)d

a(10) = 12 + (9)4

a(10) = 48 seats

 

Sn = (n/2) * (a1 + a(10))

Sn = 5* (12 + 48)

Sn = 300 seats

 

Therefore the total number of seats is 300.

 

 

4 0
3 years ago
Where would I split this I will give brainliest
motikmotik
Hi. This is is how it goes tep by step.



Cut the rectangle/shape the way you feel more comfortable. However, you don't know so I will recommend you cut it in half from where the 12 is. so now the 12 ft would be broken in to 2. the top section would be 45 ft because 5 times 9 is 45. the bottom would be 98 because 7 time 14 is 98. the total would be 143. for the first one.
3 0
3 years ago
The next model of a sports car will cost 6.6% more than the current model. The current model costs $48,000. How much will the pr
KonstantinChe [14]

Answer:

It's the percent word problem...

So, first you need to find how much will the price increase:

1)6.6% of 48,000$=6.6÷100=0.066×48,000=3168$

3168$- is the price that will increase.

2)48,000+3168=51,168 $- the next price

Answer: the price of the next model will be 51,168 $.

Good luck!

Intelligent Muslim,

From Uzbekistan.

8 0
2 years ago
How do you solve this equation: 2/3x-5/8x=26
lbvjy [14]
First, multiply all fractions by 2.
3x-10/8x=52
Then multiply all sides by -10.
-30x + 8x = -520
-22x = -520
Divide both sides by -22.
x=23.6363
7 0
3 years ago
Read 2 more answers
Let f(x) = x2 − 8x + 5. Find f(−1).
Westkost [7]
F(x) = x^2 - 8x + 5

f(-1) = -1^2 - 8(-1) + 5
f(-1) = 1 + 8 + 5
f(-1) = 14 <==
3 0
3 years ago
Read 2 more answers
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