3 years ago

How do you check your solutions

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

Reverse your steps to see if u get what the questions originally asked.

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Which equation show the distributive property applied to (7+a)8

Verizon [17]

Answer:

so the answer is B

Step-by-step explanation:

$(7 + a)8 \\ = 56 + 8a \\$

3 0

3 years ago

Can a vector have a component greater than the vector's magnitude ?<br>

Mars2501 [29]

Answer: No, it can never be greater. At most it can be equal though.

5 0

2 years ago

What is 8 2/5 as a decimal number

Firdavs [7]

Answer:

8.4

Step-by-step explanation:

8 is a whole njmber, so it stays the same.

2/5 is equivalent to .4, so you put that at the end.

Your answer is 8.4 Hope this helps!

7 0

3 years ago

Ryan earns $5 for each small dog he walks and $8 for each large dog he walks. Today he walked 9 dogs and made a total of $51. Ho

Shalnov [3]

Use a system of equations.

(x=# of small dogs, y=# of big dogs)

x+y=9 (times by -5) -5x-5y=-45
5x+8y=51

Then add the equations together and the x's cancel.

3y=6
y=2

So he walked 2 big dogs and 7 little dogs.

6 0

3 years ago

A bicycle rider increases his speed from 5 m/s to 15 m/s in 10 seconds

valentina_108 [34]

To find the acceleration of the bicycle rider, we are going to use the acceleration formula: $a= \frac{v_{f}-v_{i}}{t}$
where
$a$ is the acceleration
$v_{i}$ is the initial speed
$v_{f}$ is the final speed
$t$ is the time

We know from our problem that increases his speed from 5 m/s to 15 m/s in 10 seconds, so his initial speed is 5 m/s and his final speed is 15 m/s; therefore, $v_{i}=5$ , $v_{f}=15$ , and $t=10$ . Lets replace those values in our formula:
$a= \frac{v_{f}-v_{i}}{t}$
$a= \frac{15-5}{10}$
$a= \frac{10}{10}$
$a=1$

We can conclude that the acceleration of the bicycle rider 1 m/s^2

4 0

3 years ago