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Scorpion4ik [409]
4 years ago
14

Plz help this is variable and algebraic expressions

Mathematics
1 answer:
Blizzard [7]4 years ago
4 0

Answer:

1.) D

2.) B

3.)

a.) 7x-34

b.) x (division symbol) 45 + 6

4.)

a.) x decreased by 216

b.) the quotient of 15 and x

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What is the probability that a point chosen at random in the triangle is also in the blue square? A blue square inside of an uns
Dmitrij [34]

Answer:

One-third

Step-by-step explanation:

we know that

The probability that a point chosen at random in the triangle is also in the blue square is equal to divide the area of the square by the area of triangle

step 1

Determine the area of triangle

A=\frac{1}{2}(9)(6)=27\ in^2

step 2

Determine the area of the square

A=(3^2)=9\ in^2

step 3

Determine the probability

P=\frac{9}{27}

simplify

P=\frac{1}{3}

therefore

One-third

5 0
3 years ago
QIt takes 21 minutes for 7 people to paint 7 walls
alina1380 [7]

Answer:

21 minutes divided by 7 walls = 3 minutes per wall for 5 people

Step-by-step explanation:

Assuming each worker has the same exact productivity, one person would take 15 minutes to paint a single wall (3 minutes x 5 people to get the amount of time for 1 worker per wall).

7 0
3 years ago
Find the geometric mean of 5 & 8. Write the exact answer (do NOT round)
yuradex [85]
The geometric mean is defined as the nth root of the product of n numbers.
This means, you multiply all the numbers together
5×8=40
And then you take the nth root of that number. In this case, it's the square root, but if there were more numbers, like three or four, it would be the cube and fourth root, respectively.
√40 = 6.32455532
So, the geometric mean of 5 and 8 is 6.32455532
3 0
3 years ago
Find x<br> Solve the simultaneous equations<br> 3x + 2y = 27<br> 3x – y=9
Juli2301 [7.4K]

Answer:

I think it is this because it seems as if It is 2 separate equations.

a.x=9-2y/3

b.x=3+y/3

8 0
3 years ago
Convert 4 years to months​
nikitadnepr [17]

Answer:

48 months

Step-by-step explanation:

12 times 4 48

3 0
3 years ago
Read 2 more answers
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