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Nataliya [291]
3 years ago
5

A total of 6 family members will appear in a portrait. if 2 of the family members may sit in the front row how many combinations

of family
members may sit in the front row?
Mathematics
2 answers:
Kobotan [32]3 years ago
8 0
A total of six family members will appear in a portrait and two of the family members may sit in the front row, there will be fifteen combinations of family members that may sit in the front row.
liq [111]3 years ago
4 0

There will be a total if 15 combinations of family members that can sit in the back.

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Annie bought 55.56 cubic yards of
Arturiano [62]
She paid $97.23 for the top soil. You just have to multiply 1.75 by 55.56. However, if you wanted to do this without actually solving the problem, it’s a rather easy guess. Since you know 55 times 1 is 55, choose the closest answer to it. Sometimes when it comes to math you don’t actually have to solve the problem, just take an educated guess. :)
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3 years ago
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I need help with this any help will be appreciated
Mars2501 [29]
Are you trying to solve for x and y?

y=2x+1; x+2y=17
sub in one variable in the other equation.
x+2(2x+1)=17
x+4x+2=17
5x=15
x=3

now that you have x value, plug into the original equation to find y and check with the other. 
y=2(3)+1 = 7
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2 years ago
Which of the following can be used as "reasons" in a two-column proof?
Fudgin [204]

Answer:

A definition and a theorem can be used as a reason in a two-column proof. A two column proof is assembled into statement and reason columns, where each statement should have verified reason.

Step-by-step explanation:

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3 years ago
What is the y-value of the solution to the system of equations?
motikmotik

Answer:

{x = -3 , y=2  (Isolved for both variables be elimination)

Step-by-step explanation:

Solve the following system:

{3 x + 5 y = 1 | (equation 1)

7 x + 4 y = -13 | (equation 2)

Swap equation 1 with equation 2:

{7 x + 4 y = -13 | (equation 1)

3 x + 5 y = 1 | (equation 2)

Subtract 3/7 × (equation 1) from equation 2:

{7 x + 4 y = -13 | (equation 1)

0 x+(23 y)/7 = 46/7 | (equation 2)

Multiply equation 2 by 7/23:

{7 x + 4 y = -13 | (equation 1)

0 x+y = 2 | (equation 2)

Subtract 4 × (equation 2) from equation 1:

{7 x+0 y = -21 | (equation 1)

0 x+y = 2 | (equation 2)

Divide equation 1 by 7:

{x+0 y = -3 | (equation 1)

0 x+y = 2 | (equation 2)

Collect results:

Answer:  {x = -3 , y=2

5 0
3 years ago
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Answer asap!!! which equation could be used to find the perimeter of a rectangle that has a width of 10 inches and a length of 2
Arlecino [84]

Answer:

d. p = 2*20 + 2*10

Step-by-step explanation:

You know to find the perimeter, just add side + side + side + side.

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So add 20 + 20 + 10 + 10.

To simplify this, say 2*20 and 2*10. And then add them.

So it is D

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