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Nataly [62]
4 years ago
12

What is the solution to the equation 3(x- 1) - 2(2x + 1) = 8(x - 1)?

Mathematics
1 answer:
Scorpion4ik [409]4 years ago
8 0

Answer:

x=1

Step-by-step explanation:

simplify everything

3x-3-4x+2=8x-8

-1x-1=8x-8

add 1x on both sides

1=9x-8

+8

1+8=9

9/9=1

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At a local grocery store, bananas were on sale. Green bananas were priced at $14.00 and yellow bananas were priced at $12.00. Sa
garri49 [273]

Answer:

Sabrina bought 6 yellow bananas and 3 green bananas

Step-by-step explanation:

Let

Green bananas = x

Yellow bananas = y

Green bananas = $14.00

Yellow bananas = $12.00

Total cost = $114.00

x + y = 9 (1)

14x + 12y = 114 (2)

From (1)

x = 9 - y

Substitute x = 9 - y into (2)

14(9 - y) + 12y = 114

126 - 14y + 12y = 114

- 14y + 12y = 114 - 126

-2y = -12

Divide both sides by -2

y = -12 / -2

= 6

y = 6

Substitute y = 6 into (1)

x + y = 9

x + 6 = 9

x = 9 - 6

= 3

x = 3

Sabrina bought 6 yellow bananas and 3 green bananas

3 0
3 years ago
-3(6v-3w-5)<br><br>HELP!! the subject i am on it really confusing <br>​
igomit [66]

Answer: -18v+9w+15

Step-by-step explanation:

1. -3(6v)-3(-3w)-3(-5)

2.-18v+9w+15

3 0
3 years ago
The cone shown has a diameter of 16 meters and a slant height of 10 meters. Which choice is closest to the lateral surface area?
Jlenok [28]

Answer:

The approximate lateral surface area of the cone is 251.2 m^{2}

Step-by-step explanation:

we know that

The lateral area of a cone is equal to

LA=(pi)(r)(l)

we have

r=16/2=8 m -----> the radius is half the diameter

l=10 m ----> the slant height

pi=3.14

substitute the values

LA=(3.14)(8)(10)=251.2 m^{2}

4 0
3 years ago
Read 2 more answers
A bag contains 12 red, 30 blue, 20 green, 10 yellow, and 8 black marbles. Nancy chooses 1 marble from the bag. What is the proba
saul85 [17]

Answer:

5/8

Step-by-step explanation:

12+30+20+10 +8 =80 total marbles

12+30+8=50 red blue and black

50/80

5/8

6 0
4 years ago
Dave buys a baseball catchers equipment for $295. The tax rate is 7.9%. How much tax did Dave pay? Round your answer to the near
Liono4ka [1.6K]

Answer:

23.31

Step-by-step explanation:

7 0
3 years ago
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