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3 years ago

ZA and ZB are supplementary angles. If m_A

Mathematics

1 answer:

KatRina [158]3 years ago

5 0

Answer:

∠A = 107

∠B = 73

Step-by-step explanation:

∠A , ∠B are supplementary. So, ∠A + ∠B = 180

5x + 27 + 5x - 7 = 180

5x + 5x + 27 - 7 = 180 {Combine like terms}

10x + 20=180

10x = 180 -20

10x = 160

x = 160/10

x = 16

∠A = 5x + 27 = 5*16 + 27 = 80 + 27 = 107

∠B = 5x - 7 = 5*16 - 7 = 80 - 7 = 73

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Emily took 300 US dollars to the bank to exchange it for Canadian dollars. The exchange rate on that day was 1.25 Canadian dolla

Paha777 [63]

Emily wanted to exchange her 300 US Dollars for Canadian Dollars.

The exchange rate for it was 1.25 Canadian Dollars for 1 US Dollar.

This means that 1 US Dollar = 1.25 Canadian Dollars.

So if we were to follow this pattern,

2 US Dollars = 2 × 1.25 = 2.5 Canadian Dollars

3 US Dollars = 3 × 1.25 = 3.75 Canadian Dollars

4 US Dollars = 4 × 1.25 = 5 Canadian Dollars

So for 300 US Dollars, we'll need to multiply 300 by 1.25.

300 US Dollars = 300 × 1.25 = 375 Canadian Dollars.

Hope it helps. :)

4 0

3 years ago

natulia [17]

Answer:

diagonal = = 12.8 inches (to the nearest tenth of an inch)

Step-by-step explanation:

As shown in the diagram attached to this solution:

Let the Length of the rectangular board = a

Let the width = b

Let the diagonal = d

where:

a = 10 inches

b = 8 inches

d = ?

Triangle ABC in the diagram is a right-angled triangle, therefore, applying Pythagoras theorem:

(hypotenuse)² = (Adjacent)² + (Opposite)²

d² = 10² + 8²

d² = 100 + 64

d² = 164

∴ d = √(164)

d = 12.806 inches

d = 12.8 inches (to the nearest tenth of an inch)

<em>N:B Rounding off to the nearest tenth of an inch is the same as rounding off to 1 decimal place.</em>

3 0

3 years ago

Fill in the blank to solve the equation below <br><br> 12 + 24 = 2(6 + _)

Dimas [21]

Answer:

12 + 24 = 2(6 + 12)

Step-by-step explanation:

hope this helpss :D

much appreciated if this were marked brainliest <3

4 0

3 years ago

Read 2 more answers

Graphing Worksheet

kompoz [17]

The answer is b cuz it changes how it go

4 0

3 years ago

Is 660 10 times as much as 600

mr Goodwill [35]

No,
660 is 1.1 times as much;

to find how many times 660 goes into 600, you must divide 660 by 600

660÷600 = 1.1

∴660 is 1.1 times as much as 600

6 0

3 years ago