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3 years ago

Plz need answer need for grades

Mathematics

2 answers:

Igoryamba3 years ago

8 0

Answer:

Step-by-step explanation:

8w-9

8(3)-9

24-9

Yuliya22 [10]3 years ago

6 0

Answer: 15

Step-by-step explanation:

w = 3

8 times 3 = 24

24 - 9 = 15

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on comparing the ratios a1/a2 b1/b2 and c1/c2 find out whether the pair of linear equations 2x -3y=8 and 4x-6y =9 are consistent

andre [41]

Answer:

The given linear equation are

⇒9x+3y+12=0....eq1

⇒a1 =9,b1 =3,c1 =12

⇒18x+6y+24...eq2

⇒a2 =18,b2 =6,c2 =24

⇒a1/a2 =9/18 =1/2

⇒ b1/b2= 3/6 = 1/2

⇒ c1/c2= 12/24= 1/2

comparing

⇒ a1/a2,b1/b2,c1/c2

⇒ a1/a2=b1/b2=c1/c2

Hence, the line represented by eq1 and eq2 are coincidents

Step-by-step explanation:

6 0

3 years ago

The following numerically ordered sequence of numbers has a mean of 17 and a median of 18.

Arisa [49]

a= 9

b= 19

hope this helps

8 0

3 years ago

Triangle ABC has an altitude AH that lies in the exterior of the triangle which of the following could be true about this figure

Sergio [31]

Answer:

In triangle ABC, angle B is obtuse.

Step-by-step explanation:

The type of triangle is obtuse, angle A and C are acute, angle B is obtuse.

6 0

3 years ago

What is YZ?<br><br> Enter your answer as a decimal in the box.

maks197457 [2]

Answer:

YZ = 18.4 in

Step-by-step explanation:

The midsegment YZ is half the length of the third side VX , then

YZ = $\frac{1}{2}$ × 36.4 = 18.2

8 0

3 years ago

Read 2 more answers

At one point in a Girl Scout cookie sales drive, region C had sold 1500 boxes of cookies, and region D had sold 1200 boxes of co

juin [17]

Answer:

a)After 6 days region D will catch region C

b) Region C will sell 13500 cookies and region D will sell 13600 cookies

Step-by-step explanation:

a) Cookies sold by region C more than region D= 1500-1200=300

But region D can sells 50 cookies every day i-e

50 cookies = 1 day

==> 1 cookie= 1÷50

==> 300cookies = 300÷50=6 days

So, after 6 days region D will catch up region C's

b) If sale stopped after 8 days;

Then sale of region C for 8 days = 1500×8=12000 cookies

so , total cookies sold = 1500 +12000=13500

For region D;

Before catching up region C cookies sold by region D = 1200

Till catching up region C - region D had also sold 1500 cookies,

and for 50 extra cookies than region C

next 8 days region D will sale =(1500+50)×8=1550×8=12400 cookies

So, total number of cookies sold by region D = 1200+12400=13600

3 0

3 years ago