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Anni [7]
3 years ago
8

Solve the system of linear equations by elimination. −x+y=4−x+y=4 x+3y=4

Mathematics
1 answer:
I am Lyosha [343]3 years ago
7 0

Answer:x=-2 y=2

Step-by-step explanation:

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The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?
elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

15x+7y=15

The given inequality is

15x+7y\geq 15

A point will contained in solution set if the above inequality satisfied by that point.

Check the point (0,-3),

15(0)+7(-3)\geq 15

-21\geq 15

This statement is false, therefore option a is incorrect.

Check the point (-3,0),

15(-3)+7(0)\geq 15

-45\geq 15

This statement is false, therefore option b is incorrect.

Check the point (3,3),

15(3)+7(3)\geq 15

66\geq 15

This statement is true, therefore option c is correct.

Check the point (-3,-3),

15(-3)+7(-3)\geq 15

-66\geq 15

This statement is false, therefore option d is incorrect.

7 0
3 years ago
Mae Ling earns a weekly salary of $325 plus a 7% commission on sales at a gift shop. How much would she make in a work week if s
Reptile [31]

Answer:

$661

Step-by-step explanation:

Find how much she made from commission by finding 7% of 4,800

Multiply 4800 by 0.07

4800(0.07)

= 336

Then, add this to her weekly salary:

325 + 336

= 661

So, she would have made $661 that week

3 0
3 years ago
The base of a triangle prism shown is an isosceles triangle having a height of H cm, and an area of 36cm squared
Alika [10]

Answer:

the value of h on the diagram is 9cm

Step-by-step explanation:

area = 1/2 * base * height

a = 1/2*b*h

36=1/2*8*h

36=4h

since the 1/2 will multiply the 8

36=4h

multiply both sides by 4

h=9cm.

4 0
3 years ago
Can someone plz help me 0.004 x = 0.4
just olya [345]

Answer:

0.0016

Step-by-step explanation:

0.004*0.4=0.0016

3 0
4 years ago
Decrease 100kg by 30%?
timurjin [86]

Answer:

70kg

Step-by-step explanation:

7 0
3 years ago
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