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Galina-37 [17]
3 years ago
8

A kitten's heartbeat can be as fast as 240 beats per minute.to find the number of times a kitten's heart beats in 30 seconds, Ai

den says divide 240 by 30. Do you agree with him? Why or why not?

Mathematics
1 answer:
katovenus [111]3 years ago
8 0
No, because to half something you have to divide by 2 or multiply by .5
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A theater group made appearances in two cities. The hotel charges before tax in the second city were $1500 lower than in the fir
KonstantinChe [14]

Answer:

The hotel bill in the first city before tax would be $ 650

Step-by-step explanation:

Let x be the hotel charges ( in dollars ) before tax in the first city,

∵  Hotel charges before tax in the second city were $1500 lower than in the first.

So, the hotel charges in second city = ( x - 1500 ) dollars,

Now, percentage of tax in,

First city = 8%

Second city = 10%,

So, the total tax in both city = 8% of x + 10% of (x-1500)

=\frac{8x}{100}+\frac{10(x-1500)}{100}

=0.8x + 0.10(x-1500)

According to the question,

0.8x + 0.10(x-1500)=435

0.8x + 0.10x - 150 = 435

0.9x = 435 + 150

0.9x = 585

\implies x = \frac{585}{0.9}=650

Hence, the hotel bill in the first city before tax would be $ 650.

7 0
3 years ago
Read 2 more answers
The perimeter of a rectangle is 400 yards. What are the dimensions of the rectangle if the length is 90 yards more than the​ wid
mihalych1998 [28]
X+90 = length
x=width
4x+180=400
4x=220
x=55

The width is 55 yards and the length is 145 yards
6 0
4 years ago
Help me with question 3.<br><br> (It will be 33 points)
adoni [48]

Answer:

PartA

P = 4a

Part B

60 = P fence + 2a

60 = 6a

Part C

40

Step-by-step explanation:

We are building a fence so we are finding perimeter.

Adding the 3 sides

P = a+b+a

P = 2a+b

It is twice as long as it is wide

b= 2a

Replace in the equation for perimeter

P = 2a+(2a)

P = 4a

Part B

We know the perimeter is 60 for the entire backyard

The perimeter of the backyard is  the fence plus the longer side

60 = P fence + b

Replacing b

60 = P fence + 2a

We know the equation for the perimeter of the fence is

60 = 4a + 2a

Combing like terms

60 = 6a

Part C

Solve for a and b

60 = 6a

Divide each side by 6

60/6 = 6a/6

10 =a

P fence = 4a

P = 4(10) = 40

5 0
3 years ago
What shape dosent belong and why
Neporo4naja [7]

Answer:

there aint no pic, mate

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Becky has 9 bags of coins. Some of the bags contain 8 gold coins, and the rest contain 6
fredd [130]

Answer:

4 bags of gold coins and 6 bags of gold coins

Step-by-step explanation:

So, Becky has 9 bags of coins

This is basically a "trial and error" equation.

Now, she has 4 bags of 8 gold coins

8×4= 32

So she has 32 gold coins

Now, she has 5 bags of 6 silver coins

5×6=30

So she has 30 silver coins.

So we add these,

30+32= 62

HOPE THIS HELPS!!!

7 0
3 years ago
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