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Damm [24]
2 years ago
14

Pls help me thank you ​

Mathematics
2 answers:
Hoochie [10]2 years ago
5 0

Answer:

A

Step-by-step explanation:

12x+6x=90deg

90deg+90deg=180deg

SOVA2 [1]2 years ago
4 0

Answer:

A no. is correct one

Step-by-step explanation:

Hope it will help you. and please mark me brilliant

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Lilly saves 2/9 of her allowance is $18 per week.How much does she save eaxh week?
Veronika [31]

Answer:

$4

Step-by-step explanation:

Here is what you can do.

18 / 9 = 2 times 2 = 4 Why.

Because you have to for each week you need to start with the first week so you can get common denominators 4/18 to 18 cross out the 18’s and you got an answer

3 0
3 years ago
Someone pls help me ! i rlly need help
DerKrebs [107]

Answer:

Option D is the correct answer.

Step-by-step explanation:

Coefficients od dividend = (4, - 17, - 15)

Dividend =4x^2 - 17x - 15

Divisor x = 5 =>x-5= 0

Coefficients of Quotient = (4, 3)

Quotient =4x + 3

Remainder = 0

Since,

Dividend = Divisor \times quotient + Remainder\\\therefore 4x^2 - 17x - 15 = (x - 5)\times (4x + 3) +0 \\\therefore 4x^2 - 17x - 15 = (x - 5)\times (4x + 3) \\\therefore( 4x^2 - 17x - 15) \div (x - 5) = (4x + 3)

8 0
3 years ago
The ratio of the perimeters of two similar triangles is 4:7. What is the area of each of these triangles if the sum of their are
Mashcka [7]

Answer:

The area of triangles are 16 cm^2 and 49 cm^2

Step-by-step explanation:

we know that

If two figures are similar, the ratio of its perimeters is equal to the scale factor and the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the smaller triangle in square centimeters

y ----> the area of the larger triangle in square centimeters

we know that

z=\frac{4}{7}

\frac{x}{y}=z^2

so

\frac{x}{y}=(\frac{4}{7})^2      

\frac{x}{y}=\frac{16}{49}

x=\frac{16}{49}y -----> equation A

x+y=65 ----> equation B

solve the system by substitution

substitute equation A in equation B

\frac{16}{49}y+y=65

solve for y

\frac{65}{49}y=65

y=49\ cm^2

Find the value of x

x=\frac{16}{49}(49)

x=16\ cm^2

therefore

The area of triangles are 16 cm^2 and 49 cm^2

3 0
4 years ago
Read 2 more answers
Grandma uses 2/3 of a pumpkin to make a pumpkin pie. How many pumpkins should she buy to make 4 pumpkin pies?​
Pachacha [2.7K]

she needs to use 8/12 of pumpkins

4 0
3 years ago
Solve i need done fast please
Bogdan [553]
A-  53
B-  53
C- 127
D-  54
E-  E+20
F-  59
3 0
3 years ago
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