Which of the following is a unit rate?

Mathematics

2 answers:

pav-90 [236]3 years ago

6 0

Answer:

Lets be honest we all come to this website just to get answers but the answer would be either C or A

Step-by-step explanation:

ruslelena [56]3 years ago

3 0

The answer is math+math=math

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4 more than twice a number is -10

timama [110]

Answer:

The number is -3

Step-by-step explanation:

Write an equation

2x+4=-10

add 4 on both sides

2x=-6

divide 2 on both sides to isolate variable

x=-3

3 0

3 years ago

I don’t understand need help

kodGreya [7K]

Answer:

6y^2-12y-4

Step-by-step explanation:

(8y^2-5y+7) - (2y^2+7y+11)

(8y^2-5y+7)-2y^2-7y-11

Combine like terms:

6y^2-12y-4

5 0

3 years ago

Read 2 more answers

Two children own two-way radios that have a maximum range of 3 miles. One leaves a certain point at 1:00 P.M., walking due north

Grace [21]

Answer:

The answer is 21 minutes

Step-by-step explanation:

We use the equation Xf = Xo + vt

1) At 1:00 PM, child one leaves the starting point heading north at a constant velocity of 6 mi/hr or .1 [mi/min] (divide by 60 to convert from [mi/hr] to [mi/min])

2) He walks for 15 minutes before kid 2 starts walking. In 15 minutes he is able to cover 1.5 [mi]

$x_{1f1} =x_{o} +v_{1} t_{1} \\x_{1f1} =0+.1(15)\\x_{1f1} =1.5 [mi]$

3) Now, child 2 starts walking and we know that when the range reaches 3 miles, they won´t be able to communicate. So the sum of the final position of child 1 and child 2 must be 3[mi]