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ahrayia [7]
1 year ago
6

I need help with this

Mathematics
1 answer:
Zanzabum1 year ago
7 0

Answer:

\text{ 78 miles per hour}

Step-by-step explanation:

Given the linear function for the traffic fines:

f(s)=14(s-60)+40

If a fine comes to $292, substitute f(s)=292 and solve for "s" to find the speed of the person:

\begin{gathered} 292=14(s-60)+40 \\ 292=14s-840+40 \\ 14s=292+840-40 \\ 14s=1092 \\ s=\frac{1092}{14} \\ s=78\text{ miles per hour} \end{gathered}

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Dan borrowed $750.00 from his brother who is charging him 8% simple interest. If Dan pays his brother back in 6 months, how much
Artemon [7]

Solution:

we are given that

Dan borrowed $750.00(=P) from his brother who is charging him 8% (=r)simple interest.

Dan pays his brother back in 6 months(=t).

we have been asked to find- how much does he have to pay back including the interest?

As we know that

(Simple \ Interest)SI=\frac{PRT}{100}

Substitute the values we get

SI=\frac{750*8*1/2}{100}= 30\\

Hence net payable amount is 750+30=$780


8 0
3 years ago
Read 2 more answers
The Smith's are building a fence around their rectangular shaped yard. The posts are 2 yards apart. There are 7 posts along the
vovangra [49]

Answer:

Posts: 34

Area:  264 yard²

Step-by-step explanation:

Posts: (7 x 2) + (10 x 2) = 34

Area: 2 x (7 - 1) x 2 x (12 - 1) = 2 x 6 x 2 x 11 = 264 yard²

3 0
4 years ago
Solve 5(x/2+3)=35 what is the answer
evablogger [386]

Answer:

x=8

Step-by-step explanation:

5(x/2+3)=35

x/2+3=35/5

x/2+3=7

x/2=7-3

x/2=4

x=4*2

x=8

8 0
3 years ago
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Solve by sunstitution y=-x+4, y=3x
enyata [817]

Answer:

x=2

Step-by-step explanation:

y=-x+4   y=3x

3x=x+4

2x=4

x=2

(I hope this is the answer)

4 0
3 years ago
Geometry question, need major help
DedPeter [7]

Answer:

5

Step-by-step explanation:

Each triangle is a myriad of both |, ||, and |||.

Because BE = || and FE = ||| then BF = |

CD = 10 but thats equal to 2 | meaning that 1 | is 5.

6 0
3 years ago
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