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Basile [38]
3 years ago
7

The equation's X-y= 2, -2y=-2, X+ y = 2, and x+2y=-2 are shown on the graph below.

Mathematics
2 answers:
PIT_PIT [208]3 years ago
4 0

Answer: A

Step-by-step explanation:

ziro4ka [17]3 years ago
3 0

Answer:

A.) x-y=2 and x+2y=-2

Step-by-step explanation:

For option A, we have:

x-y=2

x+2y=-2

Subtract the first equation from the second, to get:

2y--y=-2-2

This implies that:

2y+y=-2-2

Simplify to get:

3y=-4

Divide both sides by 3 to get:

y =  -  \frac{4}{3}  =  - 1.3

We substitute y=-1.3 into the first equation to get:

x--1.3=2

x+1.3=2

x=2-1.3

x=0.7

The solution is (0.7,-1.3), which is approximately (0.7, -1.4)

By inspection, all the other factors have solutions not close to (0.7, -1.4)

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How many baseballs equal one pineapple?
Zigmanuir [339]

Let a be an apple, b be a baseball, p be a pineapple and s be a shoe.

Then, from the balance, we model these equations:

p + b = s     ----- (1)

2s = 4a

Divide both sides by 2.

s = 2a

Substitute in (1), we get,

p + b = 2a   ----- (2)

Also,

p = a + b   -----  (3)

Substitute the above in (2), we get,

(a + b) + b = 2a

a + 2b = 2a

Subtract a from both sides.

a = 2b

Substitute in (3), we get,

p = 2b + b = 3b

Hence, 3 baseballs equal one pineapple.

6 0
3 years ago
There are 25 girls and 20 boys in class 7. 7/15of the students in the class are fond of cricket and the remaining students are f
saw5 [17]

9514 1404 393

Answer:

  24

Step-by-step explanation:

If 7/15 are fond of cricket, the remaining number is 1 -7/15 = 8/15 of the class. The number of students in the class is ...

25 + 20 = 45

so 8/15 of the class is ...

  (8/15)(45) = 8(45/15) = 8(3) = 24

24 students are fond of football.

6 0
3 years ago
Read 2 more answers
Which expression is equivalent to the given expression?
dezoksy [38]

Answer:

<em><u>A</u></em>

Step-by-step explanation:

<em><u>If you see - 12a3bc, - 12a divided by 3 will give you - 4a then just put the rest beside them. So the answer will be A. </u></em>

4 0
3 years ago
- 4|7x + 2|=32<br><br> Please help, absolute value!
Nana76 [90]

Answer:

x= 6/7 or x = −10/7

Step-by-step explanation:

Let's solve your equation step-by-step.

4(|7x+2|)=32

Step 1: Divide both sides by 4.

4(|7x+2|)/4 =32/4

|7x+2|=8

Step 2: Solve Absolute Value.

|7x+2|=8

We know either 7x+2=8 or 7x+2=−8

7x+2=8 (Possibility 1)

7x+2−2=8−2 (Subtract 2 from both sides)

7x/7 = 6/7

(Divide both sides by 7)

7x/7= 6/7

x= 6/7

7x+2=−8 (Possibility 2)

7x+2−2=−8−2 (Subtract 2 from both sides)

7x/7 = −10/7

(Divide both sides by 7)

x= −10/7

Answer:

x= 6/7 or x = −10/7

3 0
3 years ago
Please help! not sure how to start.
bearhunter [10]
First simplify it so it would become -1 x^2 over 6 x^5
then you need to simplify the x's so do 5-3 so the final answer is -1 over 6 x^3
3 0
4 years ago
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