3 years ago

1) Matthew can run of a mile in of an hour. What is the unit rate?

Mathematics

1 answer:

Scrat [10]3 years ago

7 0

Brrnrb ururrururjbbrejejrjrjjrjrjjrjr rjjrjrjrjr

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The number of windows on each floor form an arithmetic sequence; 124 windows on the first floor, 116 windows on the second floor

zubka84 [21]

Answer:

Formula is 132 - 8n, and there are 52 windows on 10th floor.

Step-by-step explanation:

difference = 116-124 = -8 ( 8 less windows for every floor you go up)

the first fllor has 124 windows

Formula:

$a_{1} = 124$

$a_{n} = 124 + (-8)(n - 1)$ = 132 - 8n

10th Floor:

$a_{10} = 124 + (-8)(10 - 1) = 124 + (-8)(9) = 124 - 72 = 52 windows$

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2 years ago

Can someone help me with this problem

balandron [24]

Hi! Your answer should be, 1,960.89

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3 years ago

What is T in -5t-2(5t+10)=100

Alina [70]

Answer:

t=-8

Step-by-step explanation:

-5t-2(5t+10t)=100

-2 x 5t=-10t

-2 x 10 = -20

-5t-10t-20=100

combine terms and add 20

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divide by -15

t=-8

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3 years ago

Solve each system using the substitution method. Show all work and steps.

mihalych1998 [28]

Answer:

Solve for the single variable in the one-variable equation.

Step-by-step explanation:

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2 years ago

Identify the system of equations used to solve the following problem. A laboratory employee is mixing a 10% saline solution with

irakobra [83]

I think with the kinds of mixture problems, it's really helpful to make a table.

The equations you actually need are $x + y = 500$ and $0.1(500-y)+0.04y=30$ . Since I was so close, I went ahead and just solved it anyway. You can see my setup on the attached image.

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3 years ago