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Anna71 [15]
3 years ago
7

8(y+4)-2(y-1)=70-3y help pls

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0

Answer:

y = 4

Step-by-step explanation:

8(y+4)-2(y-1)=70-3y

8y+32-2y+2=70-3y

Grouping of like terms

8y-2y+3y=70-32-2

9y=36

Divide both sides by 9

9y/9 = 36/9

9 cancels itself and 9.

y=36/9

y=4

Therefore, y = 4.

Hope it helps.

If so, mark as brainliest.

earnstyle [38]3 years ago
4 0
8•y+8•4+-2•y+-2•-1=70-3y
8y+32+-2y+2=70-3y
8y+-2y+32+2=70-3y
6y+34=70-3y
70-34=36
6y-3y=3y
3y=36
36/3
Y=12
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9 minus 3 divided by 1/3 plus 1 (solve using B.O.D.M.A.S. procedure)
Citrus2011 [14]
9 - 3 ÷ 1/3 + 1
BODMAS says that the first thing we do in this is the division (D), so 3 ÷ 1/3 = 9
9 - 9 + 1
Now we do the addition, 9 + 1 = 10
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So your final answer is -1, I hope this helps!
7 0
3 years ago
tina has 50 coins, all dimes and quarters. the value of the coins is $7.10. write a system of equations to determine how many di
Sliva [168]

Answer:

A) D + Q = 50

B) .10D + .25Q = 7.10

We multiply A) by -.10

A) -.10D - .10Q = -5 then adding this to B)

B) .10D + .25Q = 7.10

.15Q = 2.10

Quarters = 14 = 3.50

Dimes = 36 = 3.60


Step-by-step explanation:


7 0
3 years ago
The recursive function LaTeX: f\left(0\right)=1,\:f\left(n\right)=f\left(n-1\right)+2nf ( 0 ) = 1 , f ( n ) = f ( n − 1 ) + 2 n
m_a_m_a [10]

Question:

The recursive function f(0) = 1, f(n) = f(n-1) + 2n represents the nth term of a sequence. Determine the explicit function

Answer:

f(n) = n^2 + n+1

Step-by-step explanation:

Given

f(0) = 1

f(n) = f(n-1) + 2n

Required

Write an explicit formula

Let n = 1

f(1) = f(1-1) + 2*1

f(1) = f(0) + 2

f(1) = 1 + 2 = 3

Let n = 2

f(2) = f(2-1) + 2*2

f(2) = f(1) + 4

f(2) = 3 + 4 = 7

Let n =3

f(3)=f(3-1) + 2 * 3

f(3)=f(2) + 6

f(3)=7+ 6 = 13

Let n = 4

f(4) = f(4 - 1) + 2 * 4

f(4) = f(3) + 8

f(4) = 13+ 8 = 21

So, we have:

f(1) = 3= 1 + 2 * 1=1+0*1*2*1

f(2) = 7= 3 + 2 * 2=1+1*2+2*2  

f(3) = 13= 7 + 2 * 3= 1+2*3+2*3

f(4) = 21 = 13 + 2 * 4= 1+3*4 +2 *4

Following the above pattern:

f(n) = 1 + (n - 1) * n + 2 * n

f(n) = 1 + n(n - 1) + 2n

Open bracket

f(n) = 1 + n^2 - n + 2n

f(n) = 1 + n^2 + n

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3 0
2 years ago
Please help asap - ill give brainiest
GenaCL600 [577]

Answer:

this is your answer. look it once

6 0
3 years ago
What is the equation of the ine that has a slope of 4 and passes through the point (3, -10) ?
Schach [20]

Answer:

The answer is

\huge y = 4x - 22

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (3, -10) and the slope 4

We have

y + 10 = 4(x - 3) \\ y + 10 = 4x - 12 \\ y = 4x - 12 - 10

We have the final answer as

y = 4x - 22

Hope this helps you

8 0
3 years ago
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