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3 years ago

11

a car travels 2 5/8 miles in 3 1/2 minutes at a constant speed. write an equation to represent the distant d that the car travel

s in m minutes

1 answer:

Airida [17]3 years ago

7 0

Find how far the car traveled in one minute by dividing distance traveled by total time:

2 5/8 miles / 3 1/2 minutes = 3/4 mile per minute.

Now for distance (D) multiply miles per minute by number of minutes (m)

D = 3/4m

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Wht is the difference between 129 and 302

IceJOKER [234]

The difference is

302
-129
_____
173
to prove this
173
+129
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3+ 9 is 12 so the unity is 2 and you plus 1 to the tenth; 7 + 2 is 9 but if you plus the number that remained in the unity is 10 so the the tenth is 0 and you will plus 1 to the hungred, 1+1 is 2 but if you plus the 1 that remained in the tenth is 3, so if we put them all together it will be 302
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5 0

3 years ago

Read 2 more answers

Please help me !!! and explain your answer !!!<br> solve for L :

faltersainse [42]

L = $\frac{P}{2}$ - W

P = 2L + 2W = 2(L + W) → ( take out common factor of 2)

divide both sides by 2

$\frac{P}{2}$ = L + W

subtract W from both sides

$\frac{P}{2}$ - W = L

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4 years ago

Linear equations<br>a+2b=-1 <br>2a+3b=23

Keith_Richards [23]

Answer:

<h3>.2a + 4b = -2</h3><h3> 2a + 3b = 23</h3><h3><u>We</u><u> </u><u>subtr</u><u>act</u><u>.</u><u>.</u></h3><h3><u> </u><u> </u><u>0</u><u> </u><u>+</u><u> </u><u>b</u><u> </u><u>=</u><u> </u><u>-</u><u>2</u><u>5</u></h3>

<h3>a + (2×-25) = -1</h3><h3>a - 50 = -1</h3><h3>a = -1+50</h3><h3><u>a</u><u> </u><u>=</u><u> </u><u>4</u><u>9</u><u>.</u></h3>

<h3><u>a</u><u> </u><u>=</u><u> </u><u>4</u><u>9</u></h3><h3><u>b</u><u> </u><u>=</u><u> </u><u>-</u><u>2</u><u>5</u><u>.</u></h3>

Step-by-step explanation:

<h3><u>provin</u><u>g</u><u> my</u><u> </u><u>an</u><u>swer</u><u>.</u></h3>

<h3>a + 2b = -1</h3><h3>49 + (2×-25) = -1</h3><h3>49 - 50 = -1</h3>

<h3>2a + 3b = 23</h3><h3>(2×49) + (3×-25) = 23</h3><h3>98 + (-75) = 23</h3><h3>98 - 75 = 23</h3>

5 0

3 years ago

juan and debbie each earn 9 per hour at their "jobs." Debbie worked five hours more than juan during the week. if juan and debbi

Vaselesa [24]

Using a system of equations, it is found that Debbie worked 45 hours during the week.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

Variable x: Amount of hours worked by Juan.

Variable y: Amount of hours worked by Debbie.

Juan and Debbie each earn 9 per hour at their "jobs", and earned a total of 765 for the week, hence:

9x + 9y = 765

Simplifying the expression by 9:

x + y = 85 -> x = 85 - y.

Debbie worked five hours more than juan during the week, hence:

y = x + 5.

Since x = 85 - y, we replace in the expression:

y = 85 - y + 5.

2y = 90.

y = 45.

Debbie worked 45 hours during the week.

More can be learned about a system of equations at brainly.com/question/24342899

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2 years ago

How much interest is earned on an account if..<br> Principal $400<br> Rata - 8%<br> Time = 1 year

lilavasa [31]

Answer:

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Step-by-step explanation:

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4 years ago