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jasenka [17]
3 years ago
6

Ross and Annie do chores at their home acreage. Ross mows the acreage lawn every 12 days, and Annie bathes the dog every 21 days

. If Ross and Annie do their chores today, how many days will pass before they both do their chores again on the same day?
Mathematics
1 answer:
Readme [11.4K]3 years ago
5 0
84 days will pay before they both do their chores again on the same day.
<span> <span> </span><span><span> Ross mows the lawn <span>      Annie bathes the dog </span>
</span> <span> 12 x 1 = 12                          21 x 1 =  21
</span> <span> 12 x 2 = 24                          21 x 2 =  42
</span> <span> 12 x 3 = 36                          21 x 3 =  63
</span> <span> 12 x 4 = 48                          21 x 4 =  84
</span> <span> 12 x 5 = 60                          21 x 5 = 105
</span> <span> 12 x 6 = 72                          21 x 6 = 126
</span> <span> 12 x 7 = 84                          21 x 7 = 147
</span> <span> 12 x 8 = 96                          21 x 8 = 168
</span> <span> 12 x 9  = 108                       21 x 9 = 189
</span> <span> 12 x 10 = 120                      21 x 10 = 210 </span></span></span>
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kenny6666 [7]

Answer:

​{HY1, HY2,​ HW1, HW2,​ HW3, HW4,​ HW5, TY1,​ TY2, TW1,​ TW2, TW3,​ TW4, TW5}

The probability you get tails and select a white golf​ ball is 0.36

Step-by-step explanation:

There are 2 yellow golf balls: Y1 and Y2

There are 5 white golf balls: W1, W2, W3, W4 and W5

Then, the sample space is: ​{HY1, HY2,​ HW1, HW2,​ HW3, HW4,​ HW5, TY1,​ TY2, TW1,​ TW2, TW3,​ TW4, TW5}

What is the probability you get tails and select a white golf​ ball?

desired outcomes {TW1,​ TW2, TW3,​ TW4, TW5}

number of desired outcomes: 5

number of possible outcomes: 14

probability: 5/14 = 0.36

4 0
3 years ago
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Find the area of the irregular figure.
PilotLPTM [1.2K]

Answer:

Option A. 432\ units^{2}

Step-by-step explanation:

we know that

The area of the irregular figure is equal to the area of two trapezoids

The area of trapezoid is equal to

A=\frac{1}{2}(b1+b2)h

where

b1,b2 are the parallel bases

h is the perpendicular distance between the parallel bases

<u>Find the left trapezoid area</u>

A1=\frac{1}{2}(4+25)(16)=232\ units^{2}

<u>Find the trapezoid area on the right</u>

A2=\frac{1}{2}(25+15)(10)=200\ units^{2}

The area of the irregular figure is

A=A1+A2=232\ units^{2}+200\ units^{2}=432\ units^{2}

6 0
3 years ago
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nata0808 [166]

Answer:

for a) the following answers are in order from left to right.

5, 2, 2, and 10

for b) this is the square root of three: 1.73205080757 [u can round it to the first decimal place urself! :)]

Step-by-step explanation:

b) 4 = x^2 + 1

4 - 1 = x^2 - 1

3 = x^2

so the sqaure root for 3 is 1.73205080757

5 0
3 years ago
3(x+3)+3x=15<br><br> Solution and check<br><br> Shown in attachment below
OLga [1]
3x + 9 + 3x =15
6x + 9 = 15
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3 years ago
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Answer:

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