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adoni [48]
3 years ago
9

Determine,which is the better value 50 envelope for $2.49or 90 envelopes for$5.50

Mathematics
1 answer:
dusya [7]3 years ago
3 0

Answer:

50 envelopes for $2.49

Step-by-step explanation:

Option 1:

2.49/50 = 0.0498 per envelope

Option 2;

5.50/90 = 0.0611 per envelope

Option 1 is a better deal.

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Heyy i need an answer for this,it’s 7th grade math!
Katen [24]
4000 divided by 100 = 40
It will take her 40 weeks to reach 4000
However, 4000-1600=2400
In another 16 weeks she'll get back to 4000
The total of weeks she'll need to save will be 56.
She won't have enough money in 55 weeks.
7 0
3 years ago
Read 2 more answers
Missing angle trig (inverse) 10th geometry HELP ASAP
USPshnik [31]

Answer:

33. B

34. D

35. D

36. A

Step-by-step explanation:

All these questions require is a calculator :). For question 35, all you want to put in is arccos(0.8192) and make sure your calculator is in degree mode. For 36, all you want to put in is arctan(0.3839). For 34, all you want to put in is arcsin(0.6018). For 33, all you want to put in is arcsin(0.6561).

7 0
2 years ago
On a sketch of a mural,3 inches represents one foot in the mural. A door in the sketch is 2 inches wide by 5 inches high. What i
grandymaker [24]

Answer:

Length of the door,                  <em> l</em> = 5 inches (<em>in</em>)

Width or Breadth of the door, <em>w</em> = 2 inches (<em>in</em>)

Perimeter                                   p = 2(l + w)

                                                   = 2( 5 + 2) <em>inches</em>

<em>                                                    = 2(5) inches + 2(4) inches</em>

                                                   = 10 <em>inches</em>  + 4 <em>inches</em>

                                                   = 14 <em>inches</em> or 14 <em>in</em>

  Step-by-step explanation:

The perimeter of a plane shape is the measurement of the length of its outside boundary, which means the distance around its edges.

The door in the sketch is the shape of a rectangle. the distance around the edge of the door is the sum of all the sides. The longer side of a rectangle is called the length and it is usually represented by letter<em> l</em> while the shorter side is known as width or breadth represented by letter <em>w</em> and<em> b </em>respectively. The perimeter is calculated by the formula 2(l + w). where l means the length and w represents the width.

4 0
2 years ago
Please help giving brainlest
Likurg_2 [28]

Answer:

8 ft; 6 m; 28pi ft; 10pi mm

Step-by-step explanation:

1. Radius = diameter/2

16/2=8

Therefore, 8 ft

2. Diameter= radius * 2

3*2=6

Therefore, 6 m

3. Circumference = 2*pi*r

2*pi*14=28pi

Therefore, 28pi ft

4. Circumference = pi*d

Therefore, 10pi mm

I hope this helped and have a good rest of your day!

6 0
3 years ago
Read 2 more answers
Jenn buys 4 balls of yarn for a total of $23.78. She pays with two $20 bills. What is her change?
tamaranim1 [39]
Her change will be $16.22 since 20 +20 is 40 and 40 - 23.78 is 16.22
3 0
3 years ago
Read 2 more answers
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