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7nadin3 [17]
3 years ago
6

Ignore the mess... I need help with #20 please and thank you

Mathematics
1 answer:
enot [183]3 years ago
6 0
Because the triangle is isosceles, angle P and angle R are the same. Thus, your work would be:

6x+4 + 2(98-4x) = 180. You then simplify this to 6x+4 + 196 - 8x = 180. Combine like terms, you get - 2x = - 20. x = 10.

Plug x = 10 back into the equation 98 - 4x to get 98 - 4(10) which becomes 98 - 40 = 58. 

Angle P should be equal to 58 degrees. 

To check your work add up the angles to see if they equal 180:

58 + 58 + 6(10) + 4 = 116 + 64 = 180. 
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the ratio of the weight of an object on earth to the weight of the same object on pluto is 100 to 3. if and elephants weighs 410
Over [174]
You mean find the elephant's weight on Pluto?

100:3 & 4100:x

4100/100 = 41
3*41 = 123

The ratio would become 4100:123 with the elephant's weight on Pluto as 123 pounds.

8 0
3 years ago
Read 2 more answers
The total cost to fix your bike is $45. The parts cost
hoa [83]

Answer:

It took 5 hours

Step-by-step explanation:

45 = 10 + 7x

35 = 7x

5 = x

3 0
3 years ago
Can someone help me Factor the GCF out of the expressions! Thank you! You dont have to do all. :)
tamaranim1 [39]
1. -10v(v^3 + 6v^2 + 7)
2. 4m^2(3m^3 + 9m + 10)
3. 10(n^2 + 5n - 8)
4. 42^3= 70488/18= 4166
42^2= 1764/18= 98
-18(x^4 + 4166 - 98)
7 0
3 years ago
Read 2 more answers
A farmer sells 8.8 kilograms of pears and apples at the farmer's market. 2 5 of this weight is pears, and the rest is apples. Ho
Snowcat [4.5K]

Answer:

5.28 kg

Step-by-step explanation:

A farmer sells 8.8 kilograms of pears and apples at the farmer's market and 2/5 of this weight is pears.

Since a fraction is a part of a whole, 1, then, the fraction repressing the weight of the apples is:

1 - 2/5 = 3/5

Therefore, the weight of apples is/

3 / 5 * 8.8 = 5.28 kg

She sold 5.28kg of apples at the farmer's market.

8 0
3 years ago
At book fair, the ratio of adults to children is 7 : 3
joja [24]

The percentage of the boys at the book fair is 6%

<h3>What is a percentage?</h3>

Percentages are used in mathematics as a decimal ratio expressed in a fraction of 100. It is represented with a symbol known as %.

At a book fair, the ratio of adults to children are:

7 : 3

The total number of people at the book fair = 7 + 3 = 10

The percentage of adults are:

\mathbf{=\dfrac{7}{10}\times 100\%}

= 70% are adults

The percentage of children are:

 \mathbf{=\dfrac{3}{10}\times 100\%}

= 30% are children

However, if from the children, 4 are girls and 1 is a boy.

The total number of children at the fair  = 4 + 1 = 5

The percentage of girls are:

\mathbf{=\dfrac{4}{5} \times 30\%}

= 24%

The percentage of boys at the book fair is:

\mathbf{=\dfrac{1}{5} \times 30\%}

= 6%

Learn more about percentages here:

brainly.com/question/24304697

6 0
2 years ago
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