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weeeeeb [17]
3 years ago
11

What is the difference between: 1X + 3) = 10 & 1X1 + 3 = 10

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
3 0

Step-by-step explanation:

The difference is 1 times +3 is like 1×3=3

Unlike 1 times 1 + 3 =1×1+3=4

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How to do this question plz answer me step by step plzz ​
finlep [7]

Answer:

30, 85, 95, 150

Step-by-step explanation:

The angles of a quadrilateral add to 360

Let x be the smallest angle

x+55

x+65

x+120 are the other three angles

Add the 4 angles together and they sum to 360

x+x+55 x+65+ x+120 = 360

Combine like terms

4x+240 = 360

Subtract 240 from each side

4x+240-240 = 360 -240

4x = 120

Divide by 4

4x/4 = 120/4

x = 30

x+55= 30+55 = 85

x+65 = 30+65 = 95

x+120 = 30+120 = 150

7 0
4 years ago
URGENT!!! From 120 to 140 find the percentage change
GalinKa [24]
I believe it’s 16.6666666 but rounding should be 16.7:)
3 0
3 years ago
Read 2 more answers
Leah is buying curtains for her bedroom window. She wants the curtains to hang from the top of the window to the floor. The wind
Fiesta28 [93]
4’+2’=6’

6 feet to inches: 6 x 12 = 72”
3 0
3 years ago
one positive number is 28 less than another number. if the reciprocal of the smaller number is added to four times the reciproca
marishachu [46]
Let x represent the larger number.
  1/(x -28) +4/x = 1/6
Multiplying by the product of denominators, we have
  6x +24(x -28) = x(x -28)
In standard form, this is
  x^2 -58x +672 = 0
  (x -42)(x -16) = 0

The two numbers are (-12 and 16) or (14 and 42).

7 0
4 years ago
The heights of 20-year-old females are normally distributed with a mean of 64 inches 
Oduvanchick [21]

Answer:

1.5

Step-by-step explanation:

Applying,

Z = (x-μ)/σ................. Equation 1

Where Z = Z score for a height of 67 inches, x = height, μ = mean of the height, σ = standard deviation of the height.

From the question,

Given: x = 67 inches, μ = 64 inches, σ = 2 inches.

Substitute these values into equation 1

Z = (67-64)/2

Z = 3/2

Z = 1.5

6 0
3 years ago
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