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
GrogVix [38]
3 years ago
9

if there are 300 calories in 100 g of a certain food, how many calories are there in a 30 g portion of food​

Mathematics
1 answer:
kap26 [50]3 years ago
6 0

Answer:

90 calories

Step-by-step explanation:

Calories : quantity of food

there are 300 calories in 100 g of a certain food

300 calories : 100 g food

how many calories are there in a 30 g portion of food​

Let x = number of calories

x calories : 30 g food

Equate both ratios

300 calories : 100 g food = x calories : 30 g food

300/100 = x/30

300 * 30 = 100 * x

9000 = 100x

x = 9000/100

x = 90

x = number of calories = 90 calories

You might be interested in
In a school 2/3 parts of the total numbers of students. 3/10 parts are between 8 to 12 years and the remaining are above 12 year
ANEK [815]

3/10

As you know the answer already I don't think you need any further explanation :)

5 0
2 years ago
-2(0)^2-3(0)+8 solve for math
Ksivusya [100]
If we times 0 with any number, we can get 0. Then only 8 will remain
8 is the answer.
8 0
3 years ago
The store allowed 85 people in 5 hours .. how many people were allowed to enter per hour?
ale4655 [162]

Answer:

17 people per hour

Step-by-step explanation:

85/5

3 0
3 years ago
What is the equation of the line passing through the points (–25, 50) and (25, 50) in slope-intercept form?
allochka39001 [22]

The equation of the line passing through the points (-25, 50) and (25, 50) in slope-intercept form is <u>y = 50</u>. Hence, <u>4th option</u> is the right choice.

The slope-intercept form of a line is written as y = mx + b, where m is the slope of the line, and b is the y-intercept.

The slope of a line passing through the points (x₁, y₁) and (x₂, y₂) can be calculated using the formula, slope (m) = (y₂ - y₁)/(x₂ - x₁).

Therefore, slope of the line passing through the points (-25, 50) and (25, 50) can be calculated as m = (50 - 50)/(25 - (-25)) = 0/(-50) = 0.

We can find the equation of the line using the point-slope formula, according to which, a line having a slope m and passing through the point (x₁, y₁) can be written as y - y₁ = m(x - x₁).

Therefore, the equation of the given line can be written as:

y - 50 = 0(x - 25)

or, y - 50 = 0,

or, y = 50.

Therefore, the equation of the line passing through the points (-25, 50) and (25, 50) in slope-intercept form is <u>y = 50</u>. Hence, <u>4th option</u> is the right choice.

Learn more about the equation of a line at

brainly.com/question/18831322

#SPJ10

3 0
2 years ago
a study studied the birth weights of 1,999 babies born in the United States. The mean weight was 3234 grams with a standard devi
Aleks [24]

Answer:

1899

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 3234

Standard deviation = 871

Percentage of newborns who weighed between 1492 grams and 4976 grams:

1492 = 3234 - 2*871

So 1492 is two standard deviations below the mean.

4976 = 3234 + 2*871

So 4976 is two standard deviations above the mean.

By the Empirical Rule, 95% of newborns weighed between 1492 grams and 4976 grams.

Out of 1999:

0.95*1999 = 1899

So the answer is 1899

8 0
3 years ago
Other questions:
  • Does a equation only produces 1 solution
    12·1 answer
  • At the candy store, M&amp;Ms and Skittles are sold for $0.25 per ounce. Kevita puts some M&amp;Ms in a bag and then added 8 ounc
    8·1 answer
  • Riley has 3 5/9 gallons of fuel left in his car. He uses 7/16 of the fuel to drive to the bank. Then, he uses 2/5 of the remaini
    12·2 answers
  • Alexandra wishes to surround his rectangular flower bed with a gravel walk 1 meter wide flower bed is 5m and the width is 4m. Wh
    13·1 answer
  • The price of one share of Starbucks declined five dollars per day for four days in a row. How much did the price of one share ch
    13·1 answer
  • What is the surface area of the rectangular prism?
    6·2 answers
  • -3x + 6 = 18 show full work please
    10·2 answers
  • Can anyone help me with my algebra 2 test ?
    5·2 answers
  • There are 8 pencils in each pack of pencils. A teacher ordered some packs of pencils. How many pencils will the
    6·1 answer
  • Which statement is true about the function f(x)= Vx?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!