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ella [17]
2 years ago
14

Suppose that a rectangular piece of glass has a perimeter of 20 meters. If we multiply both its length and its width by 4, what

will be the perimeter of the new rectangular piece of glass?
A. 65 m

B. 80 m
C. 34 m
D. 45 m
Mathematics
1 answer:
goldenfox [79]2 years ago
3 0

Answer:

Answer B is the correct answer

Step-by-step explanation: :)

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Yinting wants to start adding weight lifting to her exercise routine. Her trainer suggests that she starts with 40 repetitions f
lapo4ka [179]

Answer:

7 Weeks

Step-by-step explanation:

If she starts off with 40 reps for the first week, and she adds 6 reps a week,  until she gets to 82 reps a week, then it would be<em> 40 + 6 x answer = 82</em>. Now, there are a couple ways you can do this, but the easiest but not shortest way is to do it one by one.

so, <em>40+6x1= 46</em>

<em>40+6x2= 52</em>

<em>40+6x3= 58</em>, and so on and so forth, until you get to <em>40+6x7</em><u>,</u> which equals 82, therefore giving you the answer of 7, but the way quicker way is to take the total (82) and subtract the number of reps she starts out with (40), then divide that number by the amount that it increases each week (6), so:

(82-40)÷6, which will also give you the answer of 7, or 7 weeks.

5 0
3 years ago
Ms. Stone decided to purchase 2 reusable bottles instead. When she got to the counter, she realized she had $10.15, only ⅝ of th
Bumek [7]

Answer:

The price of one reusable bottle is $8.12

Step-by-steetp explanation:

Ms stone wanted to purchase two reusable bottles but discovered she had only ⅝of the Mone and that ⅝ is equal to $ 10.15.

So the cost of what she wants to purchase will be called x.

Mathematically

⅝ * x = 10.15

X = (10.15*8)/5

X = 81.2/5

X= 16.24

The price of the two bottles is $16.24

So the price if one bottle will be calculated as follows.

2 bottles=$ 16.24

One bottle= $16.24/2

One bottle= $8.12

The price of one reusable bottle is $8.12

6 0
3 years ago
If a= 2, b= -3 and c= 4 evaluate ab-bc ​
Harrizon [31]

Answer:

ab - bc = 6

Step-by-step explanation:

COMPUTATION:

ab - bc = ?

(2 x -3) - (-3 x 4) = ?

(-6) - (-3 x 4) = ?

(-6) - (-12) = ?

-6 + 12 = 6

Hope this helps!

6 0
2 years ago
What is 0.09 times 64?
erma4kov [3.2K]

Answer: 5.76

Step-by-step explanation:

0.09 x 64 implies 0.09 in 64 places

To solve this, Multiply 0.09 x 64

It gives 5.76

8 0
3 years ago
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The minimum takeoff speed for a certain airplane is 75 m/s. What minimum acceleration is required if the plane must leave a runw
chubhunter [2.5K]

The solution is in the attachment

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2 years ago
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