All categories

2 years ago

Roles are being prepared to go to the grocery store. Divide 72 Rolls into two groups to the ratio is 3 to 5

Mathematics

1 answer:

Roman55 [17]2 years ago

6 0

3/5 = 72/x

First u need to cross multiply

5*72 = 360

Now divide

360/3 =120. <<< that's x

So

3/5 = 72/120 < answer

You might be interested in

The half life of silicone-32 is 710 years. If 30 grams is present now, how much will be present in 300 years?

Irina18 [472]

Answer:

22.38 g of silicone-32 will be present in 300 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

$N(t)=N_0(\frac{1}{2})^{\frac{t}{t_{1/2}}$

where,

$N(t)$ = quantity of the substance remaining

$N_0$ = initial quantity of the substance

$t$ = time elapsed

$t_{1/2}$ = half life of the substance

From the information given we know:

The initial quantity of silicone-32 is 30 g.
The time elapsed is 300 years.
The half life of silicone-32 is 710 years.

So, to find the quantity of silicone-32 remaining we apply the above equation

$N(t)=30\left(\frac{1}{2}\right)^{\frac{300}{710}}=30\left(\frac{1}{2}\right)^{\frac{30}{71}}\approx22.38 \:g$

22.38 g of silicone-32 will be present in 300 years.

7 0

2 years ago

Which statement about the dilation of these triangles is true?

Arisa [49]

The scale factor is 7

7 0

2 years ago

Help me with this question i tried multiple time to solution it always wrong

maw [93]

7/9-1/3 or 7/9-3/9= 4/9 is the answer

4 0

3 years ago

There are 15 students on a yearbook committee. 40% of the students are females. How many students on the committee are males?

Andrei [34K]

Answer:

9 students on the committee are males

Step-by-step explanation:

As per the statement:

There are 15 students on a yearbook committee.

⇒Total students on a yearbook committee = 15

⇒ $\text{Male students} +\text{Female students} = 15$ ....[1]

It is given that:

40% of the students are females

⇒ $\text{Female students} = \frac{40}{100} \cdot 15 = 6$

Substitute in [1] we have;

$\text{Male students} + 6 = 15$

Subtract 6 from both sides we have;

$\text{Male students}= 9$

Therefore, 9 students on the committee are males

8 0

3 years ago

Read 2 more answers

Can someone help me

dexar [7]

Answer:

Step-by-step explanation:

No it is not a perfect square because you can not factor it.

6 0

2 years ago