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Softa [21]
3 years ago
6

Your current test average in Biology is a 73. If the standard deviation is 25.1, you are a consistent Biology student.

Mathematics
1 answer:
Ugo [173]3 years ago
5 0
Your answer is true! I hope that helps ;)
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An animal shelter spends $5.50 per day to care for each bird and $8.50 per day to care for each cat. Nicole noticed that the she
aliina [53]

Answer: 19 birds were at the shelter on Wednesday.

Step-by-step explanation:

Let x represent the number of birds that were at the shelter on Wednesday.

Let y represent the number of birds that were at the shelter on Wednesday.

Nicole found a record showing that there were a total of 40 birds and cats on Wednesday. This means that

x + y = 40

The animal shelter spends $5.50 per day to care for each bird and $8.50 per day to care for each cat. Nicole noticed that the shelter spent $283.00 caring for birds and cats on Wednesday. This means that

5.5x + 8.5y = 283 - - - - - - - - - - - - - -1

Substituting x = 40 - y into equation 1, it becomes

5.5(40 - y) + 8.5y = 283

220 - 5.5y + 8.5y = 283

- 5.5y + 8.5y = 283 - 220

3y = 63

y = 63/3 = 21

x = 40 - y = 40 - 21

x = 19

8 0
4 years ago
Number 9 please is each triangle a right triangle? EXPLAIN
Maslowich

It is not because a right triangle needs one right angle, and a right angle is 90 degrees

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the equation of the line in slope-intercept form that passes through point (4, 5) and is parallel to the line y = −2x −
Anestetic [448]

Answer:

y=-2x+13

Step-by-step explanation:

<u>Slope-intercept form</u> of a linear equation:

y=mx+b

where:

  • m is the slope
  • b is the y-intercept

<u>Given equation</u>:

y=-2x-2

Therefore, comparing the given equation with the slope-intercept form:

  • slope (m) = -2
  • y-intercept (b) = -2

The slopes of <u>parallel lines</u> are equal.

Therefore, the slope of the new line is -2.

Substitute the given point (4, 5) and the slope m = -2 into the slope-intercept formula and solve for b:

\implies y=mx+b

\implies 5=-2(4)+b

\implies 5=-8+b

\implies b=13

Finally, substitute the found values of m and b into the formula to create the equation of the line that passes through the given point and is parallel to the given line:

\implies y=-2x+13

Learn more about the slope-intercept form here:

brainly.com/question/27317293

brainly.com/question/28185014

5 0
2 years ago
Luke's hourly babysitting salary is $6.75. Last week, he worked 5 hours each night for 4 nights. How much did Luke earn last wee
Maru [420]

Answer:

$135

Step-by-step explanation:

6.75 x 5 = 33.75 (to find the amount of money he earned each night)

33.75 x 4 = 135 (amount earned per night by the number of nights worked)

$135 (final answer)

6 0
3 years ago
Read 2 more answers
What is a transformation
igomit [66]

Answer:

Transformation is the altering of shapes using different operations.

Step-by-step explanation:

The different operations of transformation are translation, reflection, and rotation.

6 0
3 years ago
Read 2 more answers
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