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Anon25 [30]
3 years ago
8

Please help asap. I will award

Mathematics
2 answers:
sp2606 [1]3 years ago
7 0

Answer:

12

Step-by-step explanation:

hope this helps! :)

ipn [44]3 years ago
6 0
D is the answer hope that helps you
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Helppppp and explain pls and thankyouuu
Mekhanik [1.2K]

Answer:

x=1

y= -1

z=2

Step-by-step explanation:

x+y+z=2 and x-y-2z=6

if z=2 then

x+y+2=2 and x-y+4=6

and these become

x+y=0 and x-y=2

usign linear cancellation method we get

2x=2

dividing both sides by 2 we get

x=1

then going back to one of the original equations and plugging x=1 and z=2 we get

1+y+2=2

solving for y we get

y= -1

3 0
3 years ago
Tara looks up hotel room prices for a holiday. A hotel has a 25% off sale on its prices. A VAT charge of 20% must be added on at
Art [367]

Answer:

<h2> $1008</h2>

Step-by-step explanation:

We begin by calculating the amount after the 25% discount

= regular price*0.75

=£160*0.75

=$120

We then continue by calculating the the amount that must be paid when 20% VAT is added

= 120*1.20

= $144

Now Tara is going to spend 7 nights

Hence she will have to pay

144*7= $1008

4 0
3 years ago
Ruchi measured the area of her kitchen as 2.81 times 10 Superscript 4 square units. When she recorded the area, she wrote 2.81 t
yanalaym [24]

Answer:

The following statement is true:

She is incorrect because 2.81 times 10^4 is around 30,000 so the units must be smaller than feet. She most likely measured in inches.

Step-by-step explanation:

Area of the kitchen measured = 2.81 · 10⁴ = 28100

Lets evaluate all the statements

<h3>1) She is correct because dimensions of rooms must always be measured in feet and area would be square feet.</h3>

This statement is WRONG because if the dimension were measured in feet, the total area of the kitchen would be 28100 ft², which is too large of a kitchen. 28100 ft² can easily fit 10 medium sized full house of 2800 ft² or even a big building.

<h3>2) She is correct because 2.81 times 10^4 ft squared is equivalent to 2, 810 ft squared, which is an average size for a kitchen since area is always so much more than length</h3>

This statement is wrong because 2.81 ft· 10⁴ft = 28100 ft² NOT 2810 ft².

28100 ft² cannot be the size of the kitchen as discussed before.

<h3 /><h3>3) She is incorrect because 2.81 times 10^4 is around 30,000 so the units must be smaller than feet. She most likely measured in inches.</h3>

The statement is CORRECT because 2.81 in· 10⁴in = 28100 in² ≅ 30000 in² = 208 ft² , which can easily be the size of a kitchen.

<h3 /><h3>4) She is incorrect because 2.81 is a small number. She probably measured in yards to arrive at such a small value.</h3>

The number she calculated was not 2.81, it was 2.81 · 10⁴, which in yards become a very large value for a kitchen

3 0
3 years ago
Read 2 more answers
The height of a thermosphere is about 2.95×10 to the fifth power feet above earth there a 5280 feet in 1 mile how about how many
taurus [48]

Answer:

You have to do simple maths its like multiplying 1x4 do it like that

Step-by-step explanation:

8 0
3 years ago
Mary purchases a new air conditioner for $5,420 and takes out an add-on interest loan at 8.3 percent. If she is to pay off the l
kumpel [21]

Answer:44.986

Step-by-step explanation:5,420x8.3=44,986

3 0
3 years ago
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