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Marizza181 [45]
3 years ago
7

The difference of two numbers is 8. When twice the first number is added to three times the second number, the result is 51. Wha

t are the two
numbers?
OA.
12 and 4
ОВ.
15 and 7
Ос.
20 and 12
OD
23 and 15
Mathematics
1 answer:
Naya [18.7K]3 years ago
8 0
The answer is b. 15 & 7
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In City Lake, researchers caught, marked, and released 176 bass. Later, they took a sample of 91 bass and found that 13 were mar
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Answer:

If x is the total number of bass in the lake we can write the following proportion: 176 / x = 13 / 91. 13 / 91 simplifies to 1 / 7 so the proportion becomes 176 / x = 1 / 7. Using the Cross Products Property this becomes x = 1232.

4 0
3 years ago
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Reduce to simplest form.<br> -9/12 - (-7/4)<br> (They are fractions)
Hoochie [10]

Answer:

The answer is one

Step-by-step explanation:

-9/12=  -.75

-7/4= -1.75

8 0
3 years ago
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How large is one side of the square garden plot
Elina [12.6K]

Given - Length of the Rectangular Plot : 16 meters

Given - Width of the Rectangular Plot : 4 meters

We know that - Area of a Rectangle is given by : Length × Width

:\implies  Area of the Rectangular plot = (16 × 4) m²

:\implies  Area of the Rectangular plot = 64 m²

Given : Square plot and Rectangular plot have same Area

:\implies  Area of Rectangular plot = Area of Square plot

:\implies  Area of Square plot = 64 m²

We know that - Area of Square is given by : Side × Side

:\implies  Side × Side = 64 m²

:\implies  S² = 64 m²

:\implies  S² = 8² m²

:\implies  S = 8 m

<u>Answer</u> : One side of the Square Garden plot is 8 meter

6 0
3 years ago
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The administrators at the University of Oklahoma wonder if Oklahoma residents or non-Oklahoma residents differ in their exciteme
densk [106]

Answer:

d. The administrators are unable to tell if there is a true difference between Oklahoma and non-Oklahoma residents in their excitement to go home for the holidays because their interval covers 0.

Step-by-step explanation:

The confidence interval refers to a rabje of statistically calculated values used in establishing a certain level of confidence in the outcome of a data.

The confidence interval is calculated thus :

Mean ± (Zcritical * Error)

The ± sign ensures we have the lower and upper boundary of our confidence level.

From the confidence level given in the question : -1.78 to 3.27

Since 0 is contained in the confidence interval range given, then it can be concluded that the difference in excitement between Oklahoma and non oklahoma residents cannot be adequately established.

3 0
3 years ago
The chart shows the number of points Jerry scored on each test this week out of the number of points possible for the test.
krok68 [10]
Jerry did the best at Spanish so the answer is D
If you divide the numerators by the denominators of each class you get his percentage
Math - 45/50 = .9 = 90%
Science- 19/25= .76 = 76%
Music- 8/10 = .8 = 80%
Spanish 19/20 = .95 = 95%
7 0
3 years ago
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