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docker41 [41]
2 years ago
12

Work out and simplify where possible 3 x 5/11 12 x 3/4

Mathematics
1 answer:
EleoNora [17]2 years ago
7 0

3 \times  \frac{5}{11}

turns into

\frac{3}{1}  \times  \frac{5}{11}  =  \frac{15}{11}  =  1 \frac{4}{11}

12 \times  \frac{3}{4}  =  \frac{12}{1}  \times  \frac{3}{4}  =  \frac{36}{4}  = 9

Because 36 goes into 4 nine times.

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A bookkeeper has a balance of $83.92. If she collects $76.75
kotegsom [21]

Answer:

The bookkeeper already has a balance of 83.92.  She collects 76.75 so that's 83.92+76.75 which equals to 160.67.  Then she pays out 38.58 so that's a deduction to what she already has.  160.67-38.58=122.09.

SO the bookkeeper has $122.09 left.

5 0
3 years ago
-3m - [2m + (5 - m)] + 7 was simplified as 2 - 4m. Without simplifying, explain how you can show that it has been simplified cor
Jobisdone [24]

Answer:

the answer and explanation is in the picture

Step-by-step explanation:

hope this helps

please like and Mark as brainliest

7 0
3 years ago
I don't know how to do this. I have the formula but I'm confused. Help?
Rom4ik [11]
For the lateral area, don't include the base area. For the surface area, you should include it.
3 0
3 years ago
Write the equation of the line for a line that passes through (-2,-4) and (-1, -1).
Bas_tet [7]

Answer:

y = 3x+2

Step-by-step explanation:

First find the slope using the slope formula

m= (y2-y1)/(x2-x1)

   = ( -1 - -4)/(-1 - -2)

   = (-1 +4)/ (-1 +2)

   = 3/1

  = 3

The slope intercept formula is

y = mx+b where m is the slope and b is the y intercept

y = 3x+b

Using the point (-1,-1) and substituting into the equation

-1 = 3(-1)+b

-1 = -3+b

-1+3 = b

2 = b

y = 3x+2

3 0
2 years ago
18. The area of a right triangle is 30 cm². The length
Olenka [21]

Answer:

12

Step-by-step explanation:

The area of a triangle is calculated with the following formula:

\frac{1}{2} *b*h (b: base, h: height (or legs))

We can use this formula to find the length of the other leg:

30 = \frac{1}{2} *b*h multiply both sides with 2 to get rid of fraction

60 = b*h one of the leg's length is given as 5 so

60 = 5*h divide both sides by 5

12 = h is the length of the missing leg.

8 0
2 years ago
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