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Mama L [17]
3 years ago
11

Solve 4(a-3) = 22 solve 5(x -6) = 65 with explanation, please giving 20 points

Mathematics
2 answers:
DaniilM [7]3 years ago
5 0

Step-by-step explanation:

4(a-3)=22

a-3=4-22

a-3=18

a=18+3

a=21

5(x-6)=65

x-6=65-5

x-6=60

×=60+6

x=66

hope it will help u...............

Pie3 years ago
4 0

Answer:

a = \frac{34}{4}

x = 19

Step-by-step explanation:

<u>First equation</u>

Expand the brackets

4(a-3) = 22

4a - 12 = 22

Add 12 to both sides

4a - 12 + 12 = 22 + 12

4a = 34

Divide both sides by 4

4a ÷ 4 = \frac{34}{4}

a = \frac{34}{4}

<u>Second equation</u>

Expand the brackets

5(x - 6) = 65

5x - 30 = 65

Add 30 to both sides

5x - 30 + 30 = 65 + 30

5x = 95

Divide both sides by 5:

5x ÷ 5 = 95 ÷ 5

x = 19

Hope this helps!

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Karl deposits $900 in a CD. He will earn 5% compound interest each year for five years. How much interest will Karl earn in 5 yr
Sliva [168]

Answer:

$225 of interest in 5 years.

Step-by-step explanation:

Step 1: 5% x 5 = 25%.

Step 2: 900 ÷ 4 = 225.

Karl will earn $225 of interest in 5 years.

5 0
3 years ago
The length of a rectangle is 5 more than the width. The perimeter is 120. What is the length, width, and area? Please HELP
Ad libitum [116K]

Answer:

l = 32.5 units, w= 27.5 units, A = 893.75 units²

Step-by-step explanation:

width is w

length is l = 5+w

P = 2( l+w) , substitute l for 5+w

P = 2(5+w+w)

P = 2(5+2w)

P = 10 +4w

P = 120

10 +4w = 120

4w = 120-10

4w = 110

w= 110/4

w= 27.5 units

l = 5+w = 5+ 27.5 = 32.5 units

A = l*w = 27.5 * 32.5 = 893.75 units ²

5 0
3 years ago
Help please: pre- calc
ivanzaharov [21]
Subtract g(x) from f(x): (x²+3x-1)-(x³+4x²+1)=-x³-3x²+3x-2
C is the correct answer.
4 0
3 years ago
Help please...........
Snezhnost [94]

Answer:

66.42° for Y

23.58° for Z

90° for X

4 0
3 years ago
elijah has three neighbors the sum of all the neighbors ages is 80 the second-oldest neighbor is 28 years old the difference bet
Nata [24]

Ans:

Step-by-step explanation:

Let the age of oldest neighbour be x

let the age of youngest neighbour be x-30

According to question,

x+28+x-30 = 80

or, 2x +28-30=80

or,2x+28=80+30

or, 2x=110-28

or, 2x=82

or, x=82/2 = 41

Therefore, The age of oldest neighbour is 41 years

& The age of youngest neighbour= x-30 = 41-30 = 11 years!

6 0
3 years ago
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