1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antoniya [11.8K]
3 years ago
7

Some landscapers just finished planting a new flower garden. They used​ pink, yellow, and blue flowers. For every 2 pink​ flower

s, there are 5 yellow flowers and 7 blue flowers. There are 322 flowers altogether. How many of the flowers are pink​?
Mathematics
1 answer:
Hatshy [7]3 years ago
7 0

Answer:

There are in total 46 Pink flowers.

Step-by-step explanation:

For ever 2 pink flowers, there are 5 yellow flowers and 7 blue flowers

So, Pink flower : Yellow Flower ; Blue flower = 2: 5 : 7

Number of total flowers = 322

Now, let the common factor in the ratios of the flower be k .

So, according to the question:

2k + 5k + 7k = 322

or, 14k = 322

⇒ k = 322/ 14 = 23

So, there are 2k = 2 x 23 = 46 Pink flowers

Number of yellow flowers = 5k = 5 x 23 =  115

Number of  Blue  flowers = 7k = 7 x 23 =  161

You might be interested in
Which is the longer trip from Earth, a one-way trip to Mars or a round-trip to Venus?
dimulka [17.4K]
<span>if a trip from earth to mars, is 97/186=.52150
 
and a trip from earth to venus is 0.2774(now we have to times it by 2 since its a roundtrip),

we get .5548 we can clearly see that .5548>.52150

So roundtrip venus</span>
6 0
4 years ago
Read 2 more answers
Matrix equations<br> Solve.
weeeeeb [17]
The answer is in the attachment

3 0
4 years ago
Please help I’ll brainlest ASAP
ZanzabumX [31]

Answer:

n = number of rides

5 + 3n ≤ 46

Step-by-step explanation:

8 0
3 years ago
For a large supermarket chain in a particularâ state, aâ women's group claimed that female employees were passed over for manage
PolarNik [594]

Answer:

1) As the P-value (0.097) is greater than the significance level (0.05), the effect is  not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the women's claim that female employees were passed over for management training in favor of their male colleagues.

2) The 95% confidence interval for the population proportion is (0.173, 0.427).

The populations proportion (π=0.4) is included in this confidence interval, so the claim has no enough evidence to be supported.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that female employees were passed over for management training in favor of their male colleagues.

We use the women's part for sample and population proportions.

Then, the null and alternative hypothesis are:

H_0: \pi=0.4\\\\H_a:\pi

The significance level is 0.05.

The sample has a size n=50 persons.

The sample proportion is p=0.3.

p=X/n=15/50=0.3

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.4*0.6}{50}}\\\\\\ \sigma_p=\sqrt{0.0048}=0.069

Then, we can calculate the z-statistic as:

z=\dfrac{p-\pi+0.5/n}{\sigma_p}=\dfrac{0.3-0.4+0.5/50}{0.069}=\dfrac{-0.09}{0.069}=-1.299

This test is a left-tailed test, so the P-value for this test is calculated as:

\text{P-value}=P(z

As the P-value (0.097) is greater than the significance level (0.05), the effect is  not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the claim that female employees were passed over for management training in favor of their male colleagues.

b) We have to calculate a 95% confidence interval for the proportion.

The sample proportion is p=0.3.

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.3*0.7}{50}}\\\\\\ \sigma_p=\sqrt{0.0042}=0.0648

The critical z-value for a 95% confidence interval is z=1.96.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=1.96 \cdot 0.0648=0.127

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.3-0.127=0.173\\\\UL=p+z \cdot \sigma_p = 0.3+0.127=0.427

The 95% confidence interval for the population proportion is (0.173, 0.427).

The populations proportion (π=0.4) is included in this confidence interval, so the claim has no enough evidence to be supported.

5 0
3 years ago
The height, h, of a plant (in inches) w weeks since it was planted is represented by the equation h=1.2w+3. How many weeks will
alexandr1967 [171]

Answer:

7.5 weeks

Step-by-step explanation:

If you want to find out how long it take for the plant to reach a foot you set up the equation like so:

12=1.2w+3

and solve from there.

12=1.2w+3                       Subrtact 3 from both sides

9=1.2w                             Divide by 1.2 to isolate w

7.5=w                              Answer is 7.5 weeks

7 0
3 years ago
Read 2 more answers
Other questions:
  • Determine what type of observational study is described. Explain. Researchers wanted to determine whether there was an associati
    10·1 answer
  • Point AAA is at {(1, 5)}(1,5)left parenthesis, 1, comma, 5, right parenthesis and point CCC is at {(-5,-7)}(−5,−7)left parenthes
    13·1 answer
  • Is 62.5 greater than or less than 62.35
    13·2 answers
  • 2x + 3y = 6
    11·2 answers
  • Solve. 2 = 4 times quantity z + 1<br> A. -4<br> B. -1/2<br> C. 1/4<br> D. 2
    15·1 answer
  • ​what is <br> 9(x​6)=207<br> answer it step by step
    14·2 answers
  • 3x+4y=8 what equation can compare
    7·1 answer
  • From his house, Tristan could drive due north to get to his parents' house or he could drive due east to get to his grandparents
    15·1 answer
  • At a football game, 8% were supporting the visiting team. If 2576 people attending
    14·1 answer
  • Do the ratios 4/9 and 12/20 form a proportion?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!