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4 years ago

Tyson began solving the system {4x+2y=64x+5y=15 by writing −3y=−9 .

1 answer:

5 0

<span>4x+2y=6 (1)
4x+5y=15 (2)

1) - (2) =4x-x4 +2y -5y = 6 - 15
equivalent to -3y= -9
so the true answer is </span><span>subtraction property of equality</span>

Top answer:

Just multiply the two functions. You can usea a variety of ways. I like t

Step-by-step explanation:

8 0

3 years ago

Please help. I know it’s not the hardest, but I think I did something wrong when I solved it. Please include your work. Tysm! Pl

Alex73 [517]

1 Multiply both sides by

−

3.2

n−3.2.

0.3

(

−

3.2

)

n+0.3=

(n−3.2)

2 Simplify

(

−

3.2

)

(n−3.2) to

(

−

3.2

)

9(n−3.2)

0.3

(

−

3.2

)

n+0.3=

9(n−3.2)

3 Multiply both sides by

0.6

(

−

3.2

)

2n+0.6=9(n−3.2)

4 Expand.

0.6

−

28.8

2n+0.6=9n−28.8

5 Subtract

2n from both sides.

0.6

−

28.8

−

0.6=9n−28.8−2n

6 Simplify

−

28.8

−

9n−28.8−2n to

−

28.8

7n−28.8.

0.6

−

28.8

0.6=7n−28.8

7 Add

28.8

28.8 to both sides.

0.6

28.8

0.6+28.8=7n

8 Simplify

0.6

28.8

0.6+28.8 to

29.4

29.4.

29.4

29.4=7n

9 Divide both sides by

29.4

10 Simplify

29.4

4.2

4.2.

4.2

4.2=n

11 Switch sides.

4.2

n=4.2

4 0

3 years ago

Read 2 more answers

Justin lives 3 2 5 miles from his grandfather's house. Enter the mixed number as a fraction greater than one. 3 2 5 =

elena-s [515]

Answer: $\dfrac{17}{5}$ miles

Step-by-step explanation:

We can express a mixed fraction as an improper fraction.

The process is as follows:

$a\dfrac{b}{c}=\dfrac{ac+b}{c}$

The given mixed number = $3\dfrac25$ miles

This can be represented as

$3\dfrac25=\dfrac{3\times5+2}{5}\\\\=\dfrac{15+2}{5}\\\\=\dfrac{15+2}{5}\\\\=\dfrac{17}{5}>1$

Hence, the required fraction= $\dfrac{17}{5}$ miles

3 0

3 years ago

Can somebody help me do this?

saveliy_v [14]

Answer:

a) Point Q

b) Sides SQ,RQ

c)Angle RQT and Angle Q

Step-by-step explanation:

6 0

4 years ago

Tyson began solving the system ​ {4x+2y=64x+5y=15 ​ by writing −3y=−9 .

Tyson began solving the system {4x+2y=64x+5y=15 by writing −3y=−9 .