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forsale [732]
3 years ago
8

Samantha created part of a table to show her savings. She saved at the same rate each week. Which graph shows this relationship?

Mathematics
2 answers:
Ilya [14]3 years ago
8 0

Answer:

The answer is B

Step-by-step explanation:

because it is going up by 6 so graph B is the only graph going up by 6.

leva [86]3 years ago
7 0

Answer: B

Step-by-step explanation:

You might be interested in
2. Solve the following system of equations
notsponge [240]

Answer:

The answer to your question is x = 2, y = -1, z = 3

Step-by-step explanation:

Data

          x  +  y  +  z =  4

          x  - 2y  -  z =   1

         2x  -  y  - 2z = -1

Solve the system of equations

          |  1   1   1  |

          |   1 -2 - 1 |

Δ =     |  2  -1  -2|    = (4 - 1 -2) - (-2 + 1 -4) = 1 + 5 = 6

          |  1    1   1  |

          |  1  -2  -1 |  

         | 4   1   1 |

         | 1   -2  -1 |

Δx =   |-1   -1   -2|   = (16 - 1 + 1) - (-2 + 4 + 2) = 16 + 4 = 12

         | 4   1    1 |

         |  1  -2  -1 |

         | 1   4   1  |

         | 1    1  -1  |

Δy =  | 2 - 1  -2 | = (-2 -1 -8) - (-8 + 1 + 2) = -11 - 5 = -6

         | 1   4    1 |

         | 1    1    -1|

         | 1   1   4|

         | 1 -2   1|

Δz =  | 2 -1   -1|   = (2 - 4 + 2) - (-1 -1 -16) = 0 + 18

         | 1   1    4|

         | 1  -2   1|

Find x, y and z

x = Δx/ Δ = 12/6 = 2

y = Δy/Δ = -6/6 = -1

z = Δz/Δ = 18/6 = 3

6 0
3 years ago
When x represents whole numbers less than 200, the function f(x) = 2x - 20 represents the profit earned from selling x carnation
solmaris [256]

Answer:

260

Step-by-step explanation:

When x represents whole numbers less than 200, the function  

f(x) = 2x - 20 .......... (1)

represents the profit earned from selling x carnations for a school fund-raiser.

Therefore, the profit earned from selling 140 carnations for the school fund-raiser will be given by the equation (1) as

f(140) = 2(140) - 20 = 280 - 20 = 260.

Therefore, 260 is the value of f(140). (Answer)

8 0
3 years ago
15 points!
Elena L [17]
So this is a bit confusing. I don't know if you need me to solve them then simplify or just reduce them but I will try to write it anyways.

1. (4^{3} )^5
For this, you can just multiply 3 by 5 which is 15 then place it as an exponent as 4^{15}

But if you need to solve it, you multiply 4 by itself 15 times which is107,3741,824 but I don't think thats what you are looking for but here it is anyways

I assume that it was the former that was the answer

Answer: 4^{15}

2. 4^{-2}

When dealing with negative exponents, you get one and divide by the base according to the exponent. It says -2⇒2 which means you divide 1 by 4, twice

1÷4÷4=.0625

Answer: .0625

3. 4^3

Since its positive, you multiply by the base number (rather than divide if it was negative)

So it is 4×4×4=64

Answer: 64

4. 4^8

Here, you just take what I did in step 3 and multiply by the base number according to the exponent

4×4×4×4×4×4×4×4=65,536

Answer: 65, 536

5. 4^{15}

You do what you did in the previous steps but multiply the base 15 times


4×4×4×4×4×4×4×4×4×4×4×4×4×4×4=1,073,741,824

Answer: 1,073,741,824


If you don't know what to do, go and ask your teacher because he/she would know best on what to do :-) 


7 0
3 years ago
If y varies directly as x, and y is 180 when x is n and y is n when x is 5, what is the value of n?
Veronika [31]

Answer:

6

Step-by-step explanation:

y=k*x

180=k*n

n=k*5

180=k*k*5. so k*k=36, k=6

7 0
3 years ago
Read 2 more answers
Another 7th grade question
ozzi

Answer:

x=16

I hope this helped

7 0
3 years ago
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