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3 years ago

12 points :) can y’all help me シ

Mathematics

1 answer:

Mama L [17]3 years ago

6 0

A) n= number of blocks in a bag
B) 20
C) it says partner but if u have to do it, i would say yes it’s useful because even though it’s a different variable, you can use any variable to indicate the # of blocks in a bag

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Susan incorrectly factored the expression below. 12a − 15b + 6 3 (4a + 5b + 3)

hichkok12 [17]

Answer:

3(4a−5b+2)

Step-by-step explanation:

The answer should have originally been 3(4a-5b+2)

3(4a+5b+3)= 12a+15b+9 which is incorrect.

6 0

2 years ago

$925 at 2% interest for 2.4 years. Find the simple interest earned.

mixer [17]

Answer:

£43

Step-by-step explanation:

925×2/100

=£ 18.5

2.4 years =18.5×2.4

=£43

5 0

3 years ago

A retailer allowed 12% discount and sold a T-shirt at a loss of Rs 16. If he had sold it at 10% discount he would have gained Rs

Murrr4er [49]

Answer: Marked Prixe = Rs. 1800

Step-by-step explanation:

Let the marked price be M

1) A retailer allowed 12% discount and sold a T-shirt at a loss of Rs 16.

SP = 0.88M

CP - SP = 16

CP = 16 + SP

CP = 16 + 0.88M

2) If he had sold it at 10% discount he would have gained Rs 20.

SP = 0.9M

SP - CP = 20

0.9M = 20 + CP

CP = 0.9M - 20

16 + 0.88M = 0.9M - 20

0.9M - 0.88M = 20+16

0.02M = 36

36 = 0.02M

M = 1800

6 0

3 years ago

Find the area of a compound shape<br><br> Can you please explain

gtnhenbr [62]

Answer:

$A=292.53~m^2$

Step-by-step explanation:

<u>Area of a Compound Shape</u>

The shape shown in the image is made of two shapes: Half a circle of radius 8 m and a triangle of base 24 m and height 16 m.

The area of a circle of radius r is:

$A_c = \pi r^2$

The area of a triangle of base b and height h is:

$\displaystyle A_t=\frac{b.h}{2}$

Calculate the area of the circle:

$A_c = \pi 8^2$

$A_c = 64\pi$

Area of half the circle:

$A_c/2 = 32\pi~m^2$

Area of the triangle:

$\displaystyle A_t=\frac{24\cdot 16}{2}$

$A_t=192~m^2$

The area of the shaded shape is:

$A=32\pi~m^2+192~m^2$

Substituting the value of pi:

$\mathbf{A=292.53~m^2}$

4 0

3 years ago

Which number set has only irrational numbers? A) {-7.4, 0, 3.14} B) { 8 , 9 , 10 } C) {- 5 6 , 7 8 , π 2 } D) { 2 , 5 , π}

melomori [17]

Im doing it right now and my best choice is going to have to be D Sorry if im wrong but i noticed that no one answered and i decided to give a shot again im sorry if it's wrong. Have a nice day! :3

7 0

3 years ago

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