All categories

3 years ago

Solve using substitution y = 5x– 1 y = 3 + 5

Mathematics

2 answers:

scZoUnD [109]3 years ago

8 0

X=9/5 y=8

Explanation in photo:

postnew [5]3 years ago

5 0

Answer:

(9/5, 8)

Step-by-step explanation:

y = 3 + 5

y=8

y = 5x– 1

8=5x– 1

9=5x

x=9/5

(9/5, 8)

You might be interested in

Can you Help me place

Ratling [72]

Answer:

P(w) = 9w+5

Step-by-step explanation:

You see every week there is an increase of 9, and it starts at 5. That's all you need to know for a linear equation.

3 0

3 years ago

Read 2 more answers

A toy car launched into the air has a height (h feet) at any given time (t second) as h= -16t + 160t until it hits the ground. A

ivanzaharov [21]

Answer:

$t_{1} \approx 9.943\,s$ and $t_{2} \approx 0.057\,s$

Step-by-step explanation:

The following polynomial is needed to be solved:

$-16\cdot t^{2} + 160\cdot t - 9 = 0$

The roots are found by means of the General Equation for Second-Order Polynomials:

$t_{1} \approx 9.943\,s$ and $t_{2} \approx 0.057\,s$

Physically speaking, both solutions are reasonable.

6 0

4 years ago

Read 2 more answers

Combine like terms. What is a simpler form of the expression? -3(-4y + 3) + 7y Solve

Umnica [9.8K]

distribute the -3 to the -4y and the 3 making the question 12y-9+7y then add common factors to get 19y-9

4 0

3 years ago

Explain how you decided where to place the decimal in the quotients for 152÷10, 152÷100,152÷1000

WINSTONCH [101]

If the divisor is greater than the dividen then you know that the answer is going to be more than one. But if the divisor is smaller than the dividen then you know that the answer is going to be less than one like a decimal.

7 0

3 years ago

Point S is between R and T on line segment RT. Use the given information to write an equation in terms of x.

Setler79 [48]

Answer: $\bold{a)\quad x=\dfrac{35}{3}\qquad RS=13\dfrac{1}{3}\qquad ST=7\dfrac{2}{3}}$

b) x = 12 RS = 20 ST = 40

c) x = 7 RS = 6 ST = 11

Step-by-step explanation:

Use the Segment Addition Postulate: RS + ST = RT

a) (2x - 10) + (x - 4) = 21

3x - 14 = 21

3x = 35

x $=\dfrac{35}{3}$

RS = 2x - 10

$=2\bigg(\dfrac{35}{3}\bigg)-10$

$=\dfrac{70}{3}-\dfrac{30}{3}$

$=\dfrac{40}{3}$

$=\large\boxed{13\dfrac{1}{3}}$

ST = RT - RS

$=21-13\dfrac{1}{3}$

$=\large\boxed{7\dfrac{2}{3}}$

Use the same formula to solve for b and c

3 0

3 years ago

Read 2 more answers