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
slega [8]
3 years ago
5

A rectangular room is four times as long as it is wide, and its perimeter is 70 meters. Find the width of the room. 

Mathematics
2 answers:
Olegator [25]3 years ago
8 0
<span>W=3/4L
P=2L=2W
70=2L+2(3/4L)
70=2L+6L/4
70=2L+1.5L
70=3.5L
L=70/3.5
L=20 FT. ANS. FOR THE LENGTH.
W=4/4*20=15 ANS. FOR THE WIDTH


i think. </span>
Roman55 [17]3 years ago
4 0
2(4w) + 2w = 70
8w + 2w = 70
10w = 70
W= 7 m

Again, you just have to learn to make the equations. :)
You might be interested in
A projector enlarges an image in the ratio 20:1. What will be the size of an enlargement of a picture that is 8cm by 6cm?
nydimaria [60]

Answer:

160 cm × 120 cm

Step-by-step explanation:

this means 1 cm turns into 20 cm.

so, 8 cm × 6 cm becomes

8×20 = 160 cm × 6×20 = 120 cm

3 0
1 year ago
Bagels: six in a bag Apples: eight in a bag Cookies: twelve in a box Juice Boxes: nine in a box Find the least number of package
morpeh [17]
Bagels 6x12=72
apples 8x9=72
cookies 12x6=72
juice 9x8=72

72/4 kids is 18 lunches
7 0
3 years ago
Convert 185 degrees Celsius to degrees Fahrenheit. Round<br> your answer to the nearest degree
lakkis [162]

Hello! :3

Answer:

The Correct Answer is <u><em>365 °F</em></u>

Step-by-step explanation:

The C to F formula is(C ~x~ 9/5) + 32 = F

When we do 185 for C in the formula, we get(185 ~x~ 9/5) + 32 = F.

To solve,  (185 ~x~ 9/5) + 32 = F. we first multiply 9 by 185, then we divide the product by 5, and then finally we add 32 to the quotient to get the answer.

185~x~9=1665

1665  /5=333

333+32=355

Therefore, the answer to 185 C to F is 365 which can be written like this

⇒ 185 °C = 365 °F

hope this helps you!

Have an Awesome Thursday!

-Joseph-

3 0
2 years ago
Bir a saati 3 saatte üç üzeri 4 defa çalıp sonrasında 1 saat hiç çalmıyor. B saati 2 saatte 2 üzeri 5 defa çalıp sonrasnda 1 saa
Bas_tet [7]
Hello can you plz do this in English so I can help
3 0
2 years ago
Consider the probability that no less than 96 out of 145 people will not get the flu this winter. Assume the probability that a
dsp73

Answer:

0.1324 = 13.24% probability that no less than 96 out of 145 people will not get the flu this winter.

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 145, p = 0.61

So

\mu = E(X) = np = 145*0.61 = 88.45

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{145*0.61*0.39} = 5.87

Consider the probability that no less than 96 out of 145 people will not get the flu this winter.

More than 95 people, which is the same as 1 subtracted by the pvalue of Z when X = 95. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{95 - 88.45}{5.87}

Z = 1.115

Z = 1.115 has a pvalue of 0.8676

1 - 0.8676 = 0.1324

0.1324 = 13.24% probability that no less than 96 out of 145 people will not get the flu this winter.

6 0
2 years ago
Other questions:
  • a veterinarian's office recorded one particular week that they had 50 patients. the following table shows the recorded number of
    8·2 answers
  • Helpppppppppp mehhhhh plz
    8·1 answer
  • 64 movie tickets are sold. 5/8 of the tickets were for adult admission. How many adult admission tickets were sold?
    15·2 answers
  • Are there more or less than 5 pt of blood in a human adult. Please help ASAP
    5·2 answers
  • Mary needs 2 kilograms of potatoes. Which number sentence could be used to figure out how many grams of potatoes Mary needs? (1,
    8·1 answer
  • 6x^2-16x+5=0<br> A. 8/3<br> B. -3/8<br> C. 5/6<br> D. -5/16
    11·1 answer
  • If 18 cups of flower will serve 88 people how many cups do you need to serve 220 people
    7·1 answer
  • Mary ate x pounds of cherries. Leslie ate LaTeX: \frac{6}{9}6 9 more. Write an expression to represent how many pounds of cherri
    10·1 answer
  • 25/c = 50/40 <br><br> what does c equal?
    11·1 answer
  • Which equation provides the best estimate of the product of 229 and 3.22?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!