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gogolik [260]
3 years ago
8

Joe wants to purchase a new skateboard. He already has $40 and can save $20 each week from his job. Write a linear equation to r

epresent the total amount he has after ‘w’ weeks.
A) T = 20 + 40w

B) T = 60w

C) T = 40 + 20 + w

D) T = 40 + 20w
Mathematics
1 answer:
sveticcg [70]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Joe already has $40 and can save $20 each week. the total amount he can save in a given number of weeks is $20 multiplied by the that number of weeks which in this case is w so 20w. To find the total T of the amount he has after w weeks, you add the amount he already has to the amount saved. So the equation would be T=40+20w

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Ratling [72]

Answer: 14 miles ≤ D ≤ 22 miles.

Step-by-step explanation:

The mean distance traveled per gallon, is 18 miles.

But this can fluctuate, at most, by 4 miles.

Because we have here the "at most", we know that we should use the ≤, ≥ symbols.

Then, if the mean is 18mi, the range of possible distances traveled per gallon is:

(18 miles - 4 miles) ≤ D ≤ (18 miles + 4 miles)

Where D is the distance.

14 miles ≤ D ≤ 22 miles.

So the truck can get between 14 miles and 22 miles per gallon on the highway.

4 0
3 years ago
A cylindrically shaped space station is rotating about the axis of the cylinder to create artificial gravity. The radius of the
erica [24]

Answer:

8%

Step-by-step explanation:

The maximum change happens when all 500 people moves form outer surface to the station center. When all of them are at the surface, the total moment of inertia is:

I = I_s + 500I_p = 3*10^9 + 500m_pr_p^2=3*10^9 + 500*70*82.5^2=3.24*10^9

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By the law of angular momentum conservation:

I_1\omega_1 = I_2\omega_2

\omega_2/\omega_1 = I_1/I_2 = \frac{3.24*10^9}{3*10^9} = 1.08

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5 0
3 years ago
Help me with this one.......
NemiM [27]
The rachos were sold are 6
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after selling some popcorns, ratio of them still 3/4
they sold 8 popcorns mean 3/4 = ?rachos / 8popcorns sold
the rachos sold = 3*8/4 = 6
4 0
3 years ago
Ann can build a model car in 3 hours, while sam can build the same model in 6 hours. How many hours would it take for them to bu
melamori03 [73]
X =  Ann
Y = Sam
3x + 6y
x = -2y
7 0
3 years ago
2. Hasil dari<br>+<br>9,1-2<br>5<br>=<br>A. 6,5<br>B. 7,5<br>7<br>C. 6<br>30<br>D. 7<br>7<br>30​
sasho [114]

Answer:

Itu mudah 2.18

A.11

B.19

C.36

D.44

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3 years ago
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