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Nostrana [21]
3 years ago
15

Pleas help me i dont know how to figure out the angles

Mathematics
1 answer:
LiRa [457]3 years ago
4 0

Answer:

angle b = 60°, angle c = 50°

Step-by-step explanation:

angle b: 120° - 80° = 60°

this is because a straight line is 180*, therefore given the angle 120° we can work out the other by subtracting it from 180°

angle c: 60° + 70° = 130°, 180° - 130° = 50°

this is because angles in a triangle add up to 180°, therefore given two angles we can subtract them from 180° to get the third

hope this helps! :)

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. A business-woman sold a gas cooker for $1209.60 making a profit of 12% on the cost price. Calculate the cost price of the gas
KiRa [710]

Answer:

$1080

Data given:

selling price (SP): $1209.60

percentage profit: 12%

To calculate out percentage profit

profit% = gain/cost price × 100

gain = selling price - cost price

hence we have:

(1209.60 - cost price)/cost price ×100 = 12

when we cross multiply

we have 12costprice = (1209.60×100)-(100×cost price)

12CP=120960-100CP

collect like terms

12CP+100CP = 120960

112CP=120960

divide both sides by the coefficient of CP

CP = $1080

4 0
3 years ago
1.06×2.29=?????????????????
mario62 [17]

Answer:

2.4274

Step-by-step explanation:

This is just a simple multiplication problem.

One way to do this is by converting both decimals into fractions:

1.06 = 1 + 0.06 = 1 + 6/100 = 1 + 3/50 = 53/50

2.29 = 2 + 0.29 = 2 + 29/100 = 229/100

Multiplying these two fractions, we get:

\frac{53}{50} *\frac{229}{100} =\frac{12137}{5000}

Now, we can just convert this into a decimal by using a calculator:

12137/5000 = 2.4274, which is our answer.

Of course, you could just put the numbers in a calculator, which would be much less time-consuming.

6 0
3 years ago
Read 2 more answers
I need help with the question above
Neporo4naja [7]
2a/5b = 6

(2a-5b)/5b could be written as: (2a/5b) -(5b/5b)

Repace by its equivalent value (6) -(1) = 5

4 0
3 years ago
Write the equation in slope-intercept form of the line that has a slope of -7/8 and contains the point (-4, 9).
lubasha [3.4K]

Answer:

The equation of the line is y = -7/8x + 11/2

Step-by-step explanation:

Since we have the slope and a point to start, we can use point-slope form to find the equation.

y - y1 = m(x - x1)

Use the slope for m and the point at (x1, y1). Then solve for y.

y - 9 = -7/8(x + 4)

y - 9 = -7/8x - 7/2

y = -7/8x + 11/2

6 0
3 years ago
Help me please i have another page to due as well it’s all tiring
lutik1710 [3]

Pythagorean Theorem: a^2 + b^2 = c^2

-A and B are legs of the triangle

-C is the hypotenuse

#1.

6^2 + 8^2 = c^2

36 + 64 = c^2

100 = c^2

c = 10

#2.

5^2 + 12^2 = c^2

25 + 144 = c^2

169 = c^2

c = 13

#4.

10^2 + 4^2 = c^2

100 + 16 = c^2

116 = c^2

c = 4\sqrt{29}

#5.

15^2 + 9^2 = c^2

225 + 81 = c^2

306 = c^2

c = 3\sqrt{34}

#6.

120^2 + b^2 = 150^2

14400 + b^2 = 22500

b^2 = 8100

b = 90

#7.

144^2 + b^2 = 194^2

20736 + b^2 = 37636

b^2 = 16900

b = 130

Hope this helps!! :)

4 0
3 years ago
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