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zmey [24]
3 years ago
11

Tyler can shovel the driveway in 2 hours Dakota can complete the job in 90 minutes if they work together how long will it take

Mathematics
1 answer:
topjm [15]3 years ago
5 0
One JOB = 1  and 2 hours = 120 min

Tyler Rate per minute: 1/120 (in 1 minute he performes 1/120 of the job)
Dakota<span> Rate per minute: 1/90 (in 1 minute he performes 1/90 of the job)

Tyler's + Dakota's rate per 1 minute = 1/120 + 1/90  = 7/360 (Job/minutes)

7/360 of the job was performed in 1 minute
</span>a complete JOB =1 to be performed in x minutes (Rule of three)

x = 1x1/(7/360) that equals to 360/7 and x (time of both) = 51 min 42

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What values of x makes -6x =12 true<br>​
Licemer1 [7]

Answer:

<h3>=> —6x = 12</h3><h3>=> —x = 12/6</h3><h3>=> —x = 2</h3>

<h2>=> x = —2</h2>

Step-by-step explanation:

hope it's helpful :-)

8 0
3 years ago
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103.561 + 102.327 PLZ ANSWER ASAP
KengaRu [80]

the answer is 205.888


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4 years ago
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Please Help!!!<br> Determine the range of the following graph:
ELEN [110]

Answer:

[-1, 6)

General Formulas and Concepts:

<u>Algebra I</u>

  • Reading a coordinate plane

<u>Algebra II</u>

  • Range is the set of y-values that are outputted by function f(x)
  • Interval Notation - [Brackets] denote inclusion and (Parenthesis) denote exclusion

Step-by-step explanation:

According to the graph, our y-values span from -1 to 6. Since -1 is a closed dot, it is inclusive. Since 6 is an open dot, it is exclusive:

Range would then be [-1, 6).

5 0
3 years ago
After surveying 100 parents, researchers concluded that 90 percent of babies can walk by the age of 10 months. Why is this an in
Maru [420]

This is an inappropriate conclusion because of <u>D. At 10 months</u>, ninety percent of toddlers have not reached the developmental milestones to walk.

<h3>What is an inappropriate conclusion?</h3>

An inappropriate conclusion is one arrived at without a proper research design.  An inappropriate conclusion can also be reached when the interpretation of the research result is not based on the findings.

Our conclusion implies that there is a wrong interpretation of the research findings because of the researcher's bias.

Thus, the research conclusion is <u>inappropriate</u> because of Option D.

Learn more about research conclusions at brainly.com/question/24542637

3 0
3 years ago
i know this is probably simple but ive forgotten how to do it and i cant find it in my notes help appreciated!
Ronch [10]

Answer:

This is pythagoras

A squared plus b squared equals c squared.

The unknown side is c as its the hypotenuse,

So the length of the first side is 6.4 this squared = 40.96

The other length is 12 as 6 is the radius so the diameter of the circle amd therfore the length of the triangle is 12.

12 squared is 144

144 + 40.96 = 184.96

The length of c squared is 184.96

To find the length of c alone we calculate the square root.

The square root of 184.96 = 13.6

? = 13.6

8 0
2 years ago
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