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Stells [14]
2 years ago
12

Explain how the expanded notation is method is used to multiply 82 times 3

Mathematics
1 answer:
WITCHER [35]2 years ago
7 0
You can easily take 8*10, since that equals 80, then add +2. Put parentheses around 8*10+2, then multiply that by 3. You should arrive at your answer
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In the diagram below segment DEF is shown(since all three letters are shown, they are collinear). If DE=3x+2, EF= x+5, and DF= 2
amm1812

The value of x is 4.

By Geometry, we know that line segment DF = DE + EF, which is equivalent to:

DF = 3\cdot x + 2 + x + 5

DF = 4\cdot x + 7 (1)

Now we solve algebraically the resulting expression.

If we know that DF = 23, then we solve the equation for x:

4\cdot x + 7 = 23

4\cdot x = 16

x = 4

The value of x is 4.

We kindly invite to see this question on line segments: brainly.com/question/23297288

6 0
2 years ago
36 is 0.9 of what number?
notsponge [240]
To solve for x you do these steps
x=number

1. do this following multiplication problem to get 0.9%
36/x*100%= 0.9%

2. now do the opposite of what you did before to get x
36 divided by 0.9%= x

36 divided by 0.9%= 40

x = 40



5 0
3 years ago
Read 2 more answers
Jake took 4 piano lessons last month. For each lesson, he memorized 2 major scales and x minor scales.
DerKrebs [107]

b and c are the answers i think....

6 0
2 years ago
What is the a, b, and c of the following quadratic y = - 4x ^ 2 + 5x - 3
Rudik [331]

Answer:

A = -4

B = 5

C = -3

Step-by-step explanation:

Standard form of a quadratic equation is y = Ax² + Bx + C

In the quadratic y = -4x² + 5x - 3, we can use this standard form to find A, B, and C.

Since -4 is the coefficient to x², A is -4.

Since 5 is the coefficient to x, B is 5.

Lastly, since -3 is the last term, C is -3.

So, the answer is:

A = -4

B = 5

C = -3

3 0
2 years ago
I am a fraction. The ratio between my numerator and denominator is 2:5. My denominator is 6 more than my numerator. What fractio
makkiz [27]

Answer:

4/10

Step-by-step explanation:

Let the numerator be 2x and the denominator is 5x. The denominator is 6 more than the numerator so if we add 6 to the numerator both numbers should be equal.

Solve:

2x+6 = 5x

6 = 3x

x = 2

2x = 4

5x = 10

4 0
1 year ago
Read 2 more answers
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