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3 years ago

Solve the system of equations using substitution 2x-3y=-1 X=y+1

Mathematics

1 answer:

Dima020 [189]3 years ago

7 0

Substitute x = y + 1 into 2x - 3y = -1

2 - y = -1

Solve for y in 2 - y = -1

y = 3

Substitute y = 3 into x = y + 1

x = 4

Therefore,

x = 4

y = 3

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find the equation of a line with the given points.(put your answers in the form y=mx+b.) (1,-5) (5,-1)

denis23 [38]

Answer:

Y = 1 X - 6 or y = x - 6

hope this helped

4 0

4 years ago

Can someone please help me with this math question .

Alona [7]

No, Yes, No, Yes

using the laws of exponents

(1)

( $4^{3}$ )³ = $4^{9}$

4³ × 4³ = $4^{6}$

$4^{9}$ ≠ $4^{6}$ → No

(2)

( $3^{4}$ )^4 = $3^{16}$

$3^{8}$ × $3^{8}$ = $3^{16}$ → Yes

(3)

$18^{8}$ = (6 × 3 )^8 = $6^{8}$ × $3^{8}$ ≠ $6^{4}$ × $3^{4}$ → No

(4)

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5 0

3 years ago

1. What is 3/5+3/5+3/5+3/5 equal to?

nydimaria [60]

Answer:

12/5 or 2 2/5

Step-by-step explanation:

3/5+3/5+3/5+3/5

=> (3+3+3+3) / 5

=> 12/5

=> 2 2/5

Hope it helps......

8 0

3 years ago

Read 2 more answers

Solve | x-3 | -4 = 10

Westkost [7]

Answer:

the answer is 17 or -11

Step-by-step explanation:

|x-3| - 4 = 10

|x-3| = 14

x-3 = 14 or -14

x = 17 or -11

6 0

3 years ago

Andre is making paper cranes to decorate for a party. He plans to make one large paper crane and several small paper cranes. It

il63 [147K]

Andre can make 6 small paper cranes in 30 minutes.

Step-by-step explanation:

Given data-

Time taken by Andre to build small cranes- 3minutes

Time taken to build large crane- 10 minutes

Total time allotted to him= 30 min

His preferences- Building one large crane and several small cranes.

The Inequality equation is 3c + 10 ≤ 30

Since his preference is to build atleast one large crane which takes 10 minutes, he is left with 30-10 = 20 minutes to build other small cranes.

For one crane he needs, 3 minutes

Hence, he can build 6 cranes in 18 minutes. Following this, he is left with 20-18= 2 minutes. Since he needs at least 3 min to build a small crane, he cannot build a small crane in the remaining 2 min.

he builds 6 small cranes in 30 minutes

Alternatively,

3c + 10 ≤ 30

Subtracting 10 from both sides

3c ≤ 20

The maximum value of c for which this equation remains valid is 6.

Thus, he builds a total of 6 cranes (small) in 30 minutes.

5 0

3 years ago