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Gelneren [198K]
3 years ago
5

Use the substitution method to find the solution to the system of linear equations.

Mathematics
1 answer:
nataly862011 [7]3 years ago
3 0

Answer: answer is d

Step-by-step explanation: input in calculator or set both equal to y and then set them equal to each other

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Given parallelogram SNOW, diagonals SO and NW intersect at D.
Reil [10]

Answer:

The length of SO is 46 units

Step-by-step explanation:

<em>In a parallelogram, </em><em>diagonals bisect each other,</em><em> which means meet each other in their mid-point</em>

∵ SNOW is a parallelogram

∵ SO and NW are diagonals

∵ SO ∩ NW at point D

→ That means D is the mid-point of SO and NW

∴ D is the mid-point of SO and NW

∵ D is the mid-point of SO

→ That means D divide SO into two equal parts SD and DO

∴ SD = DO

∵ SD = 9x + 5

∵ DO = 13x - 3

→ Equate them

∴ 13x - 3 = 9x + 5

→ Subtract 9x from both sides

∵ 13x - 9x - 3 = 9x - 9x + 5

∴ 4x - 3 = 5

→ Add 3 to both sides

∵ 4x - 3 + 3 = 5 + 3

∴ 4x = 8

→ Divide both sides by 4

∴ x = 2

→ To find the length of SO substitute the value os x in SD and DO

∵ SO = SD + DO

∵ SD = 9(2) + 5 = 18 + 5 = 23

∵ DO = 13(2) - 3 = 26 - 3 = 23

∴ SO = 23 + 23 = 46

∴ The length of SO is 46 units

4 0
2 years ago
Seema deposited $800 in a saving account earning 2.88% compounded annually. To the nearest cent, how much will she have in 16 ye
ehidna [41]

Answer:

1260.04

Step-by-step explanation:

The formula for compound interest is:

A = P(1+\frac{r}{n})^{nt} where A is the final amount, P is the initial principal balance, r is the interest rate, n is the number of times interest applied per time period and t is the number of time periods elapsed. Since the deposit was compounded annually, just like the interest, we can omit the n in the equation.

Applying the formula to question:

800(1+\frac{2.88}{100})^{16} = 1260.04 (rounded off to nearest cent since it's money)

5 0
3 years ago
8+x-12=1 what does that equation equal?
Bezzdna [24]
<em>The answer you are looking for is: </em>
<em><u>x=5 </u></em>
<em>Hope that helps!! </em>
<em>have a wonderful day!!</em>
8 0
3 years ago
Read 2 more answers
Can anyone help me lol?
Olin [163]

Answer:

Approximately 143

Step-by-step explanation:

The fraction that is women is 19/(19 + 81). Multiply the total number (750) by this fraction, and get the total number of women.

5 0
2 years ago
Write the equation of a line that is parallel with a y = -2/3 x + 2 and goes
zhannawk [14.2K]

Answer:

y = -2/3x - 2

Step-by-step explanation:

Parallel lines have the same slope so slope = -2/3

Given (-3,0)

Slope-intercept: y = mx + b

0 = -2/3(-3) + b

0 = 2 + b

b = -2

then y = -2/3x - 2

5 0
2 years ago
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