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
TiliK225 [7]
3 years ago
8

A cleaner recommends mixing 1 1/2 cup of cleaner for every 12 cups of water. What is the ratio of cleaner to water.

Mathematics
1 answer:
Anna007 [38]3 years ago
6 0

Answer: \frac{1}{8} or 1:8

Step-by-step explanation:

First, you can convert the mixed number 1\ \frac{1}{2} into a decimal number. To do this, you need to divide the numerator (which is 1)  by the denominator (which is 2) of the fraction:

\frac{1}{2}=0.5

Now you must add 0.5 to the whole number part. Then:

1+0.5=1.5

In order to find the ratio of cleaner to water, you must divide 1.5  cups of cleaner by 12 cups of water.

Therefore, the ratio is:

ratio=\frac{1.5}{12}=\frac{1}{8} or 1:8

You might be interested in
A concession stand sells hamburgers (h) for $2 and hotdogs (d) for $1. On Friday night they sold a total of 300 hamburgers and h
kenny6666 [7]
420 / 2 = 210
210 / h = 105
210 / d = 210

h = 2
d = 1

they selled 105 burgers and 210 hot dogs. hope i helped ;)
8 0
3 years ago
How is 56.07 written as a mixed number with 100 as a denominator
Roman55 [17]

Step-by-step explanation:

the number got divided by 100

it's actually 5607/100

"/"means divided

5607 ÷ 100=56.07

4 0
3 years ago
If an instrument measures in units of 10, then any value between which two values would be measured as 80?
enyata [817]

Answer:

The answer is 75 and 85.

Step-by-step explanation:

If the instrument measures in units of 10, then the measurement could be 5 units on either side of 80 (80 − 5 = 75, 80 + 5 = 85). Any value between 75 and 85 would be measured as 80.

4 0
3 years ago
Student scores on exams given by a certain instructor have mean 74 and standard deviation 14. This instructor is about to give t
Lapatulllka [165]

Answer:

P(\bar X >80)=P(Z>2.143)=1-P(z

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Let X the random variable that represent the Student scores on exams given by a certain instructor, we know that X have the following distribution:

X \sim N(\mu=74, \sigma=14)

The sampling distribution for the sample mean is given by:

\bar X \sim N(\mu,\frac{\sigma}{\sqrt{n}})

The deduction is explained below we have this:

E(\bar X)= E(\sum_{i=1}^{n}\frac{x_i}{n})= \sum_{i=1}^n \frac{E(x_i)}{n}= \frac{n\mu}{n}=\mu

Var(\bar X)=Var(\sum_{i=1}^{n}\frac{x_i}{n})= \frac{1}{n^2}\sum_{i=1}^n Var(x_i)

Since the variance for each individual observation is Var(x_i)=\sigma^2 then:

Var(\bar X)=\frac{n \sigma^2}{n^2}=\frac{\sigma}{n}

And then for this special case:

\bar X \sim N(74,\frac{14}{\sqrt{25}}=2.8)

We are interested on this probability:

P(\bar X >80)

And we have already found the probability distribution for the sample mean on part a. So on this case we can use the z score formula given by:

z=\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

Applying this we have the following result:

P(\bar X >80)=P(Z>\frac{80-74}{\frac{14}{\sqrt{25}}})=P(Z>2.143)

And using the normal standard distribution, Excel or a calculator we find this:

P(Z>2.143)=1-P(z

6 0
4 years ago
The box-and-wishker plots bellow
Natasha2012 [34]

Answer:

H: Plots 1 & 2

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Write the prime factorization of 6. Use exponents when appropriate and order the factors from least to greatest (for example, 2²
    6·1 answer
  • Sarah had 4 candy bars. She divided each candy bar into thirds. How many pieces of candy bar does she have now?
    11·2 answers
  • Francine has a picture whose length is its width. She wants to enlarge the picture to have an area of 192 in2. What will the dim
    15·1 answer
  • Circular fountain has 18cm base blueprints scale 3cm to 4 feet what is actual area of base after built
    6·1 answer
  • Solve using substitution.<br> y = -10x-10<br> y = -3x + 4
    10·1 answer
  • How do you write 72 percent as a fraction, mixed number, or whole number in simplest form?
    5·1 answer
  • Plz, help me, guys! Show a step by step if you can.
    12·1 answer
  • (-11)+(-11) i will give brainllest
    6·1 answer
  • Colin invests £1200 into his bank account. He
    11·1 answer
  • What is the inverse of the equation y=3x ?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!