Write a number in the blank that will make the number sentence true? 3x

Pls answer this correctly

Bingel [31]

Answer:

4 balloon would expect to be orange

3 0

3 years ago

A group of people went to a coffee shop.

Zielflug [23.3K]

Answer:

Fraction of the people chose a tart = $\frac{13}{45}$

Step-by-step explanation:

Given - A group of people went to a coffee shop. Each person chose a

drink and a treat. number of people who chose coffee: number of

people who chose tea = 1:4. Of those who chose coffee, number of

people who chose a muffin number of people who chose a tart =

2:7. Of those who chose tea, number of people who chose a muffin

: number of people who chose a tart = 5:1.

To find - What fraction of the people chose a tart?

Proof -

Let the Total number of People went to a coffee shop = 5x

Now,

As given, number of people who chose coffee: number of people who chose tea = 1:4

⇒Total number of people who chooses coffee = $\frac{1}{5}.5x$ = x

Total number of people who chooses tea = $\frac{4}{5}.5x$ = 4x

Now,

As given,

Of those who choose coffee, number of people who chose a muffin number of people who chose a tart = 2:7

⇒Total number of people who choose muffin after coffee = $\frac{2}{9}x$

Total number of people who choose tart after coffee = $\frac{7}{9}x$

Also,

Given that

Of those who chose tea, number of people who chose a muffin : number of people who chose a tart = 5:1

⇒Total number of people who choose muffin after tea = $\frac{5}{6}.4x = \frac{20}{6}x$

Total number of people who choose tart after tea = $\frac{1}{6}.4x = \frac{4}{6}x$

∴ we get

Total number of people who chooses tart = Total number of people who choose tart after coffee + Total number of people who choose tart after tea

⇒Total number of people who chooses tart = $\frac{7}{9}x$ + $\frac{4}{6}x$

= $\frac{7}{9}x + \frac{2}{3}x$

= $\frac{7x + 6x}{9}$

= $\frac{13}{9}x$

⇒Total number of people who chooses tart = $\frac{13}{9}x$

Now,

Fraction of the people chose a tart = $\frac{People choose tart}{Total people}$

= $\frac{\frac{13}{9}x }{5x}$

= $\frac{13}{45}$

⇒Fraction of the people chose a tart = $\frac{13}{45}$

4 0

3 years ago

Is my prediction right? or no

USPshnik [31]

Answer:

so does this go with what you got I would think C correct me if i'm wrong

Step-by-step When a population or group of something is declining, and the amount that decreases is proportional to the size of the population, it's called exponential decay. In exponential decay, the total value decreases but the proportion that leaves remains constant over time.

8 0

3 years ago

PLZZZZZZZZZZZZ help asap no links please

Blizzard [7]

If you show the menu I can help

4 0

3 years ago

Read 2 more answers

A researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 35 adult Americans an

Liula [17]

Answer:

Adult required in the case of “a” 28 and in the case of “b” the adult requirement is 19.

Step-by-step explanation:

(a) The percentage of adult that support the change is 20 percent.

Now calculate the number of adult required.

Given p = 0.20

Use the below condition:

$np(1 – p) \geq 10 \\n \times 0.20 (1 – 0.20) = 10 \\n = 63 round off$

Since 35 adults are already there so required adults are 63 -35 = 28

(b) The percentage of adult that support the change is 25 percent.

Now calculate the number of adult required.

Given p = 0.25

Use the below condition:

$np(1 – p) \geq 10 \\n \times 0.25 (1 – 0.25) = 10 \\n = 54 (round off)$

Since 35 adults are already there so required adults are 54 -35 = 19 .

6 0

3 years ago

Write a number in the blank that will make the number sentence true? 3x _<1