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guajiro [1.7K]
3 years ago
8

Find the number that makes the ratio equivalent to 11:1. ?:4

Mathematics
2 answers:
blagie [28]3 years ago
8 0

Answer:

The unknown is 44

Step-by-step explanation:

We need to solve for x in the proportion given by :

11 / 1 = x / 4

multiply both sides by 4 to isolate x

11 * 4 / 1 = x

x = 44

iren2701 [21]3 years ago
4 0
It would be 44 because 11x4=44 :)
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141 hamburgers were sold on Tuesday. 
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A pool is filled with 2,980 quarts of water. How many gallons of water are in the pool?.
Vladimir [108]

Answer:

B. 745 gallons

Step-by-step explanation:

<em><u>4 quarts = 1 gallon</u></em>

There are may ways to solve this, the easiest way is to divide the number of quarts by 4 (there are 4 quarts in a gallon).

2980 quarts /4  quarts = 745 gallons

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3 years ago
A study finds a correlation coefficient of r = .32. This number gives you information about which of the following? Group of ans
Mrac [35]

Answer:

Strength and direction of the relationship.

Step-by-step explanation:

Given that A study finds a correlation coefficient of r = .32. This number gives you information about which of the following?

Group of answer choices Type of relationship and importance Statistical validity and external validity Statistical significance and effect size Strength and direction of the relationship.

We know that correlation coefficient represented by r is a measure of association between two variables.  r can lie between -1 and 1.  While negative correlation suggests inverse relationship positive a positive association.

0 correlation means the two variables are independent.  

If nearer to 0, it represents weak correlation and nearer to 1 than 0 represents strong correlation.

Here r =0.32 a weak positive correlation

r represents

Strength and direction of the relationship.

6 0
3 years ago
The archway of the main entrance of a university is modeled by the quadratic equation
Scilla [17]

Answer:

B. (1,5) and (5.25, 3.94)

Step-by-step explanation:

The answer is where the 2 equations intersect.

We need to solve the following system of equations:

y = -x^2 + 6x

4y = 21 - x

From the second equation:

x = 21 - 4y

Plug this into the first equation:

y = -(21 - 4y)^2 + 6(21 - 4y)

y = -(441 - 168y + 16y^2)+  126 - 24y

y = -441 + 168y - 16y^2 +  126 - 24y

16y^2 + y - 168y + 24y + 441 - 126 = 0

16y^2 - 143y + 315 = 0

y = [-(-143) +/- sqrt ((-143)^2 - 4 * 16 * 315)]/ (2*16)

y = 5, 3.938

When y = 5:

x = 21 - 4(5) = 1

When y = 3.938

x = 21 - 4(3.938) = 5.25.

3 0
3 years ago
What’s the answer to this? I’ll mark you brainliest if you tell me the answer/what to put 3
fgiga [73]

Answer:

domain is basically x and range is y, so -2,5    -2 is domain and 5 is range

Step-by-step explanation:

3 0
3 years ago
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