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Stella [2.4K]
3 years ago
9

Part A

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0
Welll, the angles should be supplemeentary since they are a linear pair, so the correct answer shoudl be something nlike




2x+x+75=180
3x+75=180
x+25=60
x=35








so the answers are
A. solution B is incorrrect
B. the 2nd to last option (they are a same-side interior angle, which mean that they are supplemtnary... The angle measures should not be set equal to each other)
DerKrebs [107]3 years ago
6 0

The <em>correct answers</em> are:

<em>Part A</em>: Solution A is incorrect.

<em>Part B</em>: The labeled angles are same-side interior angles, which are supplementary. The measures of supplementary angles total 180 degrees, so x + 75 plus 2x should be set equal to 180.

Explanation:

The two angles listed are same-side interior angles. This is because they are inside the block of parallel lines and on the same side of the transversal (the side of the trapezoid). Same-side interior angles are supplementary, so these angles must be supplementary. This means their sum is 180°:

2x+x+75 = 180

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The cost of 5 hats and 1 scarf is $47. The cost of 2 hats and 2 scarves is $40. How much does one hat cost?
stepan [7]

Answer:

6.75

Step-by-step explanation:

h=hat, s=scarf

5h + 1s = $47 (equation 1)

2h + 2s = $40 (equation 2)

multiply equation 1 by 2 , we get: 10h + 2s = $94 (equation 3)

equation 3 minus equation 2, we get:

8h = $54 ⇒ h = $6.75 ⇔ 1 hat cost $6.75

substitute h = $6.75 into equation 2 to find s,

2($6.75) + 2s = $40

$13.5 + 2s = $40

2s = $26.5

s = $13.25 ⇔ 1 scarf cost $13.25

6 0
3 years ago
Find the Value of X (angles)
STatiana [176]

Answer:

x= 55

Step-by-step explanation:

The  two angles add to 180 degrees since they form a straight line

2x+70 =180

Subtract 70 from each side

2x+70-70=180-70

2x= 110

Divide by 2

2x/2 = 110/2

x= 55

7 0
3 years ago
Read 2 more answers
a school has 450 learners.the ratio of boys to the number of girls is 7:8 determine the number of boys and girls in the school​
Tom [10]

Answer:

Boys : 210

girls: 240

Step-by-step explanation:

7+8=15

450/15=30

boys: 30*7= 210

girls: 240

to make sure......

210+240=450

6 0
3 years ago
A pair of shoes costs $29.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, wher
Lemur [1.5K]
29.99 + .05 × 29.99 = 31.49
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3 years ago
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Answer:

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Step-by-step explanation:

4+5=9

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And

5÷9=3321

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4 0
3 years ago
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