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Deffense [45]
3 years ago
10

6 points can someone help me

Mathematics
2 answers:
sesenic [268]3 years ago
8 0

Answer: 39$

Step-by-step explanation: calls=x x=30 30*.05= 1.50 40.50-1.50= 39$

alekssr [168]3 years ago
8 0

Answer:38.55

Step-by-step explanation:

because you would make x=to 30 for the time and that would make the problem

40.05-0.05*30

0.05*30=1.5 so

40.05-1.5=38.55

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what is -8x-9=-21, can someone work out the problem and show me what they did to get there answer so i can understand it?
SashulF [63]

- 8x - 9 = - 21

Add 9 to both sides:

- 8x = - 12

Divide both sides by - 8:

x = -12/-8

x = -3/-2

x = 3/2 OR 1.5

Hope this answer helps :)

6 0
3 years ago
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The average speed of a car during 5 hours is 50 miles per hour. What is the total distance traveled by the car?
Paraphin [41]

Answer:

250 miles

Step-by-step explanation:

So we know that the time (t) equals 5 hours and that the rate (r) equals 50 mph. So knowing that, we can use the formula t*r=distance. We plug in the numbers and we get 250 miles.

Another way to think about this is, since we go 5 hours and 50 miles per hour, every hour we go 50 miles and we do that for 5 hours, so we go 50, 100, 150, 200, 250.  

6 0
3 years ago
Please help !
garri49 [273]

the answer for 1 is 3.6, 2 is 4/00, 3 is 1.367, and 4 is 4567937468436

6 0
3 years ago
Explore domain and range
11111nata11111 [884]

Answer:

Step-by-step explanation:

The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. (In grammar school, you probably called the domain the replacement set and the range the solution set.

8 0
3 years ago
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The manufacturing cost of a cell phone was $136. Sellers first marked up the cost by 25 percent. Sales were poor, so sellers dec
neonofarm [45]

Answer: Old selling price is $170 and new selling price is $159.12

Step-by-step explanation:

Given Cost Price , CP=$136

<u>For old selling price</u>

Selling Price(SP) = Cost Price(CP) + Markup Value(MV)

Now MV= MV=\frac{CP\times 25}{100}=\$ \frac{136\times 25}{100}=\$ 34

=>SP = $136+$34=$170

Thus old selling price is $170

<u>For new selling price</u>

New Markup Value(NMV) = \frac{CP\times 17}{100}=\$ \frac{136\times 17}{100}=\$ 23.12

=>New Selling Price , NSP= $136+$23.12=$159.12

Thus new selling price is $159.12

8 0
3 years ago
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