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aleksley [76]
3 years ago
6

If a car moves at a speed of 80 km/h for 5 hours, what distance will it travel?​

Mathematics
2 answers:
jarptica [38.1K]3 years ago
8 0

S = D/t

D = S×t

D = 80km/h×5h = 400 km

storchak [24]3 years ago
4 0

Answer:

400km/5hr

Step-by-step explanation:

A car is moving 80 km per hour. The car then travels in this constant speed for 5 hours. Multiply 5 to both the numerator and denominator:

(80 km/1 hr) x (5 hr/5 hr) = (80 km x 5)/(1 hr x 5) = 400 km/5 hr

The car travels 400 km in 5 hours.

~

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Use Euler’s formula to find the number of vertices in a polyhedron with 6 square faces and 12 edges
Sloan [31]

Answer:

V = 8

Step-by-step explanation:

we know that

The Euler's formula state that: In a polyhedron, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

V - E + F = 2

in this problem  we have

V=?\\E=12\\F=6

substitute the given values

V - 12 + 6 = 2

solve for V

Combine like terms left side

V - 6 = 2

Adds 6 both sides

V - 6+6 = 2+6

V = 8

3 0
3 years ago
The sales tax in town is 7 percent. Kiki paid $35 in sales tax on a new stereo. What’s the price of the stereo
netineya [11]
0.07x = 35....with x being the cost of the stereo
6 0
3 years ago
Read 2 more answers
Describe the congruence transformation that maps quadrilateral ABCD to quadrilateral A'B'C'D'.
umka2103 [35]

Answer:

B) 90 degrees clockwise rotation

8 0
3 years ago
Helpp asap!! pls walk me thru as well!! <333
STALIN [3.7K]

Hello!

The length and width are given.

We know the formula for calculating perimeter :

\fbox {Perimeter = 2(Length + Width)}

Let's solve!

  • Perimeter = 2(123 + 17k + 24k - 49)
  • Perimeter = 2(41k + 74)
  • \fbox {Perimeter = 82k + 148}

∴ The perimeter is 82k + 148.

8 0
1 year ago
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You have 250,000 In an IRA at the time you retire.You have the option of investing this money in two funds.Fund A pays 1.2% annu
krok68 [10]

Let x be the amount of money, you fund in Fund A and y be the amount of mone yyou fund in Fund B.

1. You have 250,000 In an IRA at the time you retire and want to invest this money into Funds A and B, then

x+y=250,000.

2. Fund A pays 1.2% (as a decimal 1.2% is 0.012) annually, then x\cdot 0.012=0.012x is annual interest income in Fund A.

Fund B pays 6.2% (as a decimal 6.2% is 0.062) annually, then y\cdot 0.062=0.062y is annual interest income in Fund B.

Since Fund A and Fund B produce an annual interest income of $8,000, then

0.012x+0.062y=8,000.

3. Solve the system of equations:

\left\{\begin{array}{l}x+y=250,000\\0.012x+0.062y=8,000.\end{array}\right.

Express x from first equation x=250,000-y and substitute it into the second equation

0.012(250,000-y)+0.062y=8,000.

Multiply this equation by 1000:

12(250,000-y)+62y=8000,000,\\ \\3000,000-12y+62y=8000,000,\\ \\62y-12y=8000,000-3000,000,\\ \\50y=5000,000,\\ \\y=100,000

Then

x=250,000-100,000=150,000.

Answer: you have to fund $150,000 in Fund A and $100,000 in Fund B.


8 0
2 years ago
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