Answer:
9.) B. division
10.) 8
Explanation:
9. Which operation to do first in order of operations?
Answer: Applying BODMAS where:
[B] brackets
[O] order
[D] division
[M] multiplication
[A] addition
[S] subtraction
Maintaining order, division operation is done first. Then multiplication and then addition and so on.
10. Given that N = 48 ÷ 3 × 2
⇒ N = 48 ÷ 3 × 2
⇒ N = 48 ÷ 6
⇒ N = 8
Answer:
$66.60
Step-by-step explanation:
Step 1 so she gave you 13.32 and covers 1 fifth of the cost so you have to times 13.32 by 5 to get how much does the present cost so the total after I times 13.32 by5 equals $66.60
It's a simultaneous equation:
Steps:
1.Number the equations..
a+b=77 -1
a-b=13 -2
2. Choose what variable you want to use. In this case I would use the "b". Since the signs in front of the "b's" are different, add the two equations together
a + b = 77
+ + +
a (-b) = 13
Which gives;
2a = 90
Then solve to find a:
2a=90
a= 90/2
a=45
3.Then plug the "a" value into any of the original equations to find the "b" value. I would use equation 1 since the all the variables are positive.
a + b = 77
(45) + b = 77
b=77-45
b=32
4.Solution
a=45
b=32
Answer:
x= 251
Step-by-step explanation:
300x= 190x + 27,610
300x-190x= 27,610
110x= 27610
x= 27610/110
x= 251
Answer:
b. 3
Step-by-step explanation:
In a 30°-60°-90° triangle, the short side is ½ the hypotenuse [the long side is double the short side].
30°-60°-90° Triangles
x√3 → long side
x → short side
2x → hypotenuse
45°-45°-90° Triangles
x → two legs
x√2 → hypotenuse
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