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Tanzania [10]
3 years ago
11

What is the value of (-3 + 3) + (-2 +31)?

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

Step-by-step explanation:

(-3+3)+(-2+31)

<u>salution</u>

-3+3-2+31

=0-2+31

=29

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Joe is 5 years older than Sydney. The sum of their ages is 45. What is Sydney’s age?
sweet-ann [11.9K]

Answer:

20 years old

Step-by-step explanation:

Joe = J

Sydney = S

J = 5 + S

J + S = 45

Substitute

5 + S + S = 45

Add

5 + 2S = 45

Subtract 5 from both sides of the equation

2S = 40

Divide both sides of the equation by 2

S = 20

Sydney is 20 years old

Hope this helps :)

8 0
3 years ago
Write a rule for the nth term of the arithmetic sequence. Then graph the first six terms of the sequence. a6=-12 a12=-36
denis-greek [22]

Answer:

We need to find the first term.  We can use the formula

an = a1 + d(n - 1)

to solve for a1.  We already know the 12th term, a12, common difference, d, and nth sequence, n.

a12 = -36

d = -4

n = 12

-36 = a1 - 4(12 - 1)

-36 = a1 - 44

8 = a1

The first term is 8.  Therefore, your formula is

an = 8 - 4(n - 1)

an = -4n + 12

Then use this formula to graph.

n is the independent variable.

an is the dependent variable.

Your graph will be a line.

n    |       an

___________

1          8

2          4

3          0

4         -4

5         -8

6         -12

Step-by-step explanation:

give me brainliest.

3 0
3 years ago
Please Help Me With This~JT
andriy [413]

Answer:

Top Row Going Left to Right: Circle, Triangle, Square, Pentagon, Hexagon, Octagon

Bottom Row Going Left to Right, Sphere, Cone, Cylinder, Pyramid, Cube, Triangular Pyramid.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How many years will it take for $2000 to double at a simple interest rate of 8%? Explain how you found your answer​
Luda [366]

maybe a hundred or a thousand years idk so maybe 500 i dont actually know

8 0
3 years ago
What does this mean 405(8) in math?
zepelin [54]
405 multiplied by 8 (: 

4 0
4 years ago
Read 2 more answers
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