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Ksenya-84 [330]
3 years ago
7

The equation 9(u – 2) + 1.5u = 8.25 models the total miles Michael traveled one afternoon while sledding, where u equals the num

ber of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. Which is the value of u?
A. u = 0.25
B. u = 0.75
C.u = 1.1
D. u = 2.5
Mathematics
2 answers:
earnstyle [38]3 years ago
8 0

The <u>equation </u>9(u-2) + 1.5u = 8.25 <u>models</u> the total miles Michael traveled one afternoon while sledding. u equals to <u>number of hours</u> walking up a hill and (u – 2) equals to number of hours sledding down the hill.

Solve this equation:

9(u-2) + 1.5u = 8.25,\\ \\9u-18+1.5u=8.25,\\ \\9u+1.5u=8.25+18,\\ \\10.5u=26.25,\\ \\u=2.5\ hours

Answer: correct choice is D

Greeley [361]3 years ago
4 0

D is the correct answer

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Makovka662 [10]

The slope intercept is equal to the rise/run.


So lets say to get from one point to the other, you go down 2 units and go right 3 units.


Since you went down it is a -2. If you had gone up 2 units, then it would be a positive 2.

Since you went to the right, it is a positive 3. If you had gone left 3 units, then it would be -3.


-2/3

4 0
3 years ago
Simplify: -|-15|<br><br> please answer correctly i'll give brainliest and 5-star rating.
12345 [234]

Answer:

-15

Step-by-step explanation:

<u>Definition of absolute value: </u>

<em>Distance from zero on a number line. </em>

<em />

Imagine a number line with 0 in the middle of it. Now mark the number 3 on it. Also mark the <em>opposite </em>of 3, which is -3. What is the <u>distance</u> from zero to those 2 points? it's 3.

This is exactly like saying |3| = 3 and |-3| = 3

Even if the number inside absolute value is negative, it <em><u>simplifies</u></em> to the positive of the same number.

_______________________________

So let's talk about your problem.

-|-15|

> the absolute value simplifies to 15

-|-15| = - 15

So that ends up being your answer.

-15

Hope this helps!!!!!!!

7 0
3 years ago
ASAP!!!!!! I WILL GIVE BRANILST AND 200 POINTS! A 13 3/4 -inch candle burns down in 11 hours. If b represents how much of the ca
antoniya [11.8K]

I hope this helps :)

Your welcome

4 0
2 years ago
Read 2 more answers
3/4log7(625)+2log7(x)=2 solve for x
sdas [7]
Simplifies to:
1.690196x+396.139706=2

Let's solve your equation step-by-step.
1.690196x+396.139706=2


Step 1: Subtract 396.139706 from both sides.

1.690196x+396.139706-396.139706=2-396.139706



1.690196x=-394.139706

Step 2: Divide both sides by 1.690196.
1.690196x/1.690196 -394.139706/1.690196

x= -233.191716
Answer: x= -233.191716

7 0
3 years ago
Need answer ASAP plssss
Marysya12 [62]

Answer:

I believe they ate 4/8. 2 apple and 2 banana muffins makes 4. They still have 4 blueberry muffins left. so 4/8

7 0
3 years ago
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