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3 years ago

Determine if the two triangles are congruent. If they are, state how you know. SAS , ASA, AAS, SSS or HL

Mathematics

1 answer:

Mandarinka [93]3 years ago

5 0

Step-by-step explanation:

1. SAS

2. SSS

3. RHS

4. SAS

5. RHS

6. SAS

7. ASA

8. SAS

9. ASA

10. SSS

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A test has twenty questions worth 100 points. The test consists of x true-false questions worth 4 points each and y multiple cho

kvv77 [185]

Answer:

Number of true-false questions =15

Number of multiple choice questions =5

Step-by-step explanation:

Number of true-false questions = $x$

Number of multiple choice questions = $y$

Total number of question = $x+y=20$

Points for true-false questions = 4

Total points for true-false questions = $4\times x =4x$

Points for multiple choice questions = 8

Total points for multiple choice questions = $8\times y =8y$

Total points of the test = $4x+8y=100$

We have 2 equations now:

(1) $x+y=20$

(2) $4x+8y=100$

We need to solve the 2 equations to find $x$ and $y$ .

Dividing equation 2 by 4.

$\frac{4x+8y}{4}=\frac{100}{4}$

(2a) $x+2y=25$

Multiplying equation (2a) with (-1)

$-1(x+2y)=25\times (-1)$

(2b) $-x-2y=-25$

Adding equation (2a) with equation (1).

$x+y=20$

$-x-2y=-25$

$-y=-5$

$y=5$ [ Divided both sides by -1]

Substituting value of $y$ in equation (1).

$x+5=20$

Subtracting both sides by 5.

$x+5-5=20-5$

$x=15$

∴ $x=15 \ and\ y=5$

Number of true-false questions =15

Number of multiple choice questions =5

7 0

3 years ago

Read 2 more answers

Maitland multiplies 0.05 x 0.8 on a calculator. The calculator shows a product of 0.04. Maitland says the calculator must be bro

Lapatulllka [165]

Answer:

no, the calculator is not broken

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Sam is buying a pair of water skis that are on sale for 2/3 of the original price. After he uses a $25 gift certificate the tota

Alexus [3.1K]

Answer:

$210

Step-by-step explanation:

The first thing we can do is to add the $25 back on to the total cost.

25 + 115 = 140.

We do this because he Sam used a gift certificate on the ski's that are already 2/3 of the original price.

Now, to find the original price we can use this equation:

$\frac{2}{3} x = 140$

X represents the original price.

To solve this equation you would flip 2/3 to 3/2 and multiply that by 140, as seen below:

$(\frac{3}{2}) \frac{2}{3}x = 140 (\frac{3}{2})$

Now you can solve:

$x = \frac{420}{2} \\x = 210$

We can check this answer by multiplying 210 by 2/3

(210)(2/3) = 140

Remember, Sam used a gift certificate for $25

140 - 25 = $115

Therefore, the original price of the skis is $210.

<em>I hope this helps!!</em>

6 0

3 years ago

This . 9th and 10 pleasee solve thesee ?

kykrilka [37]

9 is 9600 cause if you divide 48 by 5 you get 9.6 then times 9.6 times 1000 you get 9600
i cant solve number 10 its really blurry and hard to see

5 0

3 years ago

If 5 bulbs are $24.95 how much money is 1 bulb?

Elden [556K]

Answer:

4.99

Step-by-step explanation:

If you divide:

$24.95/5bulbs

you get

4.99/1 bulb

5 0

3 years ago