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Maru [420]
3 years ago
11

Easy multiplication and division question

Mathematics
2 answers:
Ahat [919]3 years ago
6 0

Answer:

4 sheets

Step-by-step explanation:

3 x 12 = 36

4 x 10 =40

Zigmanuir [339]3 years ago
3 0

The minimum amount of sheets she can use are 4 sheets. 3 sheets contain 10 cookies, and 1 sheet has 6 cookies.

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What is the solution to the system of equations shown below?
Alexxandr [17]

Answer:

  b.  (1, 3, ­-2)

Step-by-step explanation:

A graphing calculator or scientific calculator can solve this system of equations for you, or you can use any of the usual methods: elimination, substitution, matrix methods, Cramer's rule.

It can also work well to try the offered choices in the given equations. Sometimes, it can work best to choose an equation other than the first one for this. The last equation here seems a good one for eliminating bad answers:

  a: -1 -5(1) +2(-4) = -14 ≠ -18

  b: 1 -5(3) +2(-2) = -18 . . . . potential choice

  c: 3 -5(8) +2(1) = -35 ≠ -18

  d: 2 -5(-3) +2(0) = 17 ≠ -18

This shows choice B as the only viable option. Further checking can be done to make sure that solution works in the other equations:

  2(1) +(3) -3(-2) = 11 . . . . choice B works in equation 1

  -(1) +2(3) +4(-2) = -3 . . . choice B works in equation 2

7 0
3 years ago
90 POINT QUESTION!!!
Aleks [24]

Answer: 9.19 ft

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

Sin α = opposite side / hypotenuse  

Where α is the angle of elevation of the ladder to the ground, the hypotenuse is the longest side of the triangle (in this case is the length of the ladder), and the opposite side (x) is the height of the top of the ladder above the ground.

Replacing with the values given:  

Sin 45 = x/ 13

Solving for x  

sin45 (13) =x  

x= 9.19 ft

Feel free to ask for more if needed or if you did not understand something.  

7 0
2 years ago
–42t + 80t + –59t − –97 = –29
Aleksandr [31]

Answer:

Hope this helps

Step-by-step explanation:

t=6

5 0
2 years ago
Read 2 more answers
20,612,439 in scientific notation
Evgen [1.6K]
2.0612439*10^7 should be your answer
6 0
3 years ago
Find the equation that can represent the situation if the sum of two numbers is 32. We also know that the greater number is 5 mo
Serhud [2]

Answer:

A. x+(x+5)=32

Step-by-step explanation:

4 0
3 years ago
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