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Vikentia [17]
3 years ago
12

There a video game for $4 there a discount for 20 percent off whats the sale price

Mathematics
2 answers:
goldenfox [79]3 years ago
8 0
$4 =100%
(÷4 by 10 and 100 by 10)
0.4=10%
(×0.4 by 2 and 10 by 2)
0.8=20%
$4 - 0.8 =$3.2
answer:$3.2 sale price
hope this helped☺
siniylev [52]3 years ago
3 0
Original price is 5$ 
<span>

Sale / Discounted Price: is 3.2
</span>
the sale price is 3.2$


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A trough of water is 20 meters in length and its ends are in the shape of an isosceles triangle whose width is 7 meters and heig
Vaselesa [24]

Answer:

a) Depth changing rate of change is 0.24m/min, When the water is 6 meters deep

b) The width of the top of the water is changing at a rate of 0.17m/min, When the water is 6 meters deep

Step-by-step explanation:

As we can see in the attachment part II, there are similar triangles, so we have the following relation between them \frac{3.5}{10} =\frac{a}{h}, then a=0.35h.

a) As we have that volume is V=\frac{1}{2} 2ahL=ahL, then V=(0.35h^{2})L, so we can derivate it \frac{dV}{dt}=2(0.35h)L\frac{dh}{dt} due to the chain rule, then we clean this expression for \frac{dh}{dt}=\frac{1}{0.7hL}\frac{dV}{dt} and compute with the knowns \frac{dh}{dt}=\frac{1}{0.7(6m)(20m)}2m^{3}/min=0.24m/min, is the depth changing rate of change when the water is 6 meters deep.

b) As the width of the top is 2a=0.7h, we can derivate it and obtain \frac{da}{dt}=0.7\frac{dh}{dt}  =0.7*0.24m/min=0.17m/min The width of the top of the water is changing, When the water is 6 meters deep at this rate

8 0
3 years ago
Please help me with this
sergij07 [2.7K]

Answer:

x=8

Step-by-step explanation:

The ratio of a side of PQRS to the corresponding side in TUVW. is 6:4=3:2.

The ratio of RS:VW=3:2. RS=12, and VW=x. 12:x=3:2. 3 multiplied by 4 is 12, so 2 multiplied by 4 is x. So, the makes x=8.

3 0
3 years ago
Review: Angle Bisectors
zmey [24]

Answer:

  • m∠AOC = 15°
  • m∠BOC = 15°

Step-by-step explanation:

Given the angle ∠AOB

It is stated that CO is the angle bisector of ∠AOB.

Given that ∠AOB = 30°

As we know that the angle bisector bisects the angle into two equal angles.

Thus, the angle bisector CO bisects the angle ∠AOB into two equal angles, which are:

  • m∠AOC
  • m∠BOC

as

∠AOB = 30°

Thus, the two formed angles i.e m∠AOC and m∠BOC by the angle bisector would be half of the angle bisector as the angle bisector bisects the angle ∠AOB into two equal angles.

Therefore,

  • m∠AOC = 15°
  • m∠BOC = 15°
7 0
3 years ago
Jack's overtime wage is $3 per hour more than his regular hourly wage. He worked for 5 hours at his regular wage and 4 hours at
tamaranim1 [39]
Jack's regular wage is $6 per hour.
3 0
3 years ago
Correct answers only please!
Lelu [443]

Answer:

interest - $55,000

Step-by-step explanation:

$100,000 principal

11% interest rate (need to use 0.11)

? interest

5 years time

i = prt

 = 100,000(.11)(5)

interest earned is $55,000

total money in account is $155,000

8 0
3 years ago
Read 2 more answers
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