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kondor19780726 [428]
3 years ago
11

I'm stuck on a MathsWatch question. I've started it but I need some help to finish it please. Thank you! It's out of 5 marks, so

far I've only managed to get 1. Again, thanks.

Mathematics
1 answer:
luda_lava [24]3 years ago
6 0


We have area of the rectangle:


fg=120


Area of the triangle:


\frac 1 2 f \times 3 = 135-120


Solve away:


f = \frac 2 3(15) = 10


g= \dfrac{120}{f}=12


Answer: f=10, g=12


Check: trapezoid area


A = \frac 1  2(12+15)10 = 5(27)=135 \quad\checkmark



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Three times a number minus 9 is equal to two times the number plus 7
maxonik [38]

Answer:

n=16

Step-by-step explanation:

Make an equation

Three times a number minus 9–> 3n-9

Times means multiply, and minus means subtract

Equals two times the number plus 7–> =2n+7

Times means multiply, and plus means add

3n-9=2n+7

Solve for n, by getting n by itself

Subtract 2n from both sides

3n-2n-9=2n-2n+7

n-9=7

Add 9 to both sides

n-9+9=7+9

n=16

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3 years ago
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3 years ago
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STatiana [176]

Answer:

2/9 is the correct option.

Step-by-step explanation:

As the spinner is numbered 2, 4 and 5

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n(A) = 2   ∵ 4 × 5 and 5 × 4 will bring the product 20.

Therefor, the probability that Rico will get a product of 20 when Rico spins the spinner twice will be:

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3 years ago
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The answer would be D.

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If Colorado Springs, Colorado, has 1.4 times more days of sunshine than Boston, Massachusetts, how many days of sunshine does ea
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Days in boston=x
days in colorado=1.4x
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days in colorado=277
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3 years ago
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