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3 years ago

I need help for this question I’m stuck

Mathematics

2 answers:

morpeh [17]3 years ago

7 0

Answer:

g=6

Step-by-step explanation:

We can start by multiplying both sides by 2

5(3g+2)=100

Now we can distribute the 5 by using the distributive property

15g+10=100

Then we subtract 10 from both sides

15g=90

Divide both sides by 15

g=6

Tresset [83]3 years ago

4 0

Answer:

Step-by-step explanation:

5(3g + 2)/2 = 50 Multiply both sides by 2

5(3g + 2) = 50*2 = 100 Remove the brackets

15g + 10 = 100 Subtract 10 ***

15g+10-10 = 100 - 10 Collect like terms.

15g = 90 Divide by 15 ***

15g/15 = 90/15

g = 6

I don't know how to cut this down so that it requires only 2 steps. I guess that the two steps marked with *** are the 2 I would choose.

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At his last track meet, Eli ran the 400-meter dash in 54 seconds. His friend Kimberly bet him that he couldn't run a whole kilom

Trava [24]

Answer:

Eli has to run for 2.25 minutes at this pace to win the bet.

Step-by-step explanation:

At his last track meet, Eli ran the 400-meter dash in 54 seconds.

So, the speed of Eli's run is $\frac{400}{54} \times 60 = 444.44$ meters per minute.

Now, if Eli is determined to run a whole kilometer with the same speed, then it will take Eli to run 1 kilometer within $\frac{1000}{444.44} = 2.25$ minutes.

Hence, Eli has to run for 2.25 minutes at this pace to win the bet. (Answer)

6 0

2 years ago

What are the zeros of the function below?

Ivan

When you want to find zeros of rational expression you need to find at which points numerator is equal to zero. In this case, we have the product of three expressions.
$x(x-1)(x+11)=0$
A product is equal to zero whenever one of the factors is equal to zero.
That means that zeros of our functions are:
1) $x=0$
2) $x-1=0$
$x=1$
3) $x+11=0$
$x=-11$
The final answer is a. Function has zeros at (0, 1, -11).

3 0

2 years ago

If 30 buses can carry 1,500 people, how many people can 5 buses carry? A 200 © 500 B 250 D 750

maksim [4K]

Answer:

$\boxed {\boxed {\sf 250 \ people}}$

Step-by-step explanation:

Let's set up a proportion using the following setup.

$\frac {buses}{people}=\frac {buses}{people}$

We know 30 buses can carry 1,500 people.

$\frac {30 \ buses}{1500 \ people}=\frac {buses}{people}$

We don't know how many people 5 buses can carry, so we say 5 buses carry x people.

$\frac {30 \ buses}{1500 \ people}=\frac {5 \ buses}{x \ people}$

$\frac {30 }{1500 }=\frac {5 }{x }$

Cross multiply. Multiply the numerator of the first fraction by the second fraction's denominator. Then, multiply the first denominator by the second numerator.

$30*x=1500*5\\30x=7500$