Ask question

Ask question

All categories

3 years ago

12

Part 1 #1

1 answer:

Alla [95]3 years ago

6 0

Step-by-step explanation:

The equations are,

7b + 2t = 1986 -----> 1

2b + 2t = 996 -----> 2

From 1,

2t = 1986 - 7b

Using 2t value in 2,

2b + 1986 - 7b = 996

-5b = 996-1986 = -990

Divide by -5,

b = $198

Use the value of b in 2t,

2t = 1986 - 7*198

2t = 1986 - 1386

2t = 600

Divide by 2,

t = $300

You might be interested in

"More than 60% of the students scored below the mean on the last test." Can this statement be true? Why or why not?

Lelu [443]

The mean is the average of a set of numbers.

So if the remaining 40% of students score 100 points, and the 60% score like 50 points, then the mean would still be 70 points because of the 40% of students that scored super high.

So yes, it can be true.

8 0

4 years ago

Read 2 more answers

What is y= (5x+7) (-2x+3) in standard form

nikitadnepr [17]

Answer:

y = 10x^2 + x +21

Step-by-step explanation:

3 0

3 years ago

SIMPLIFY PLS!! NO LINKS OR FILES.

jarptica [38.1K]

Answer:

-18a^8

Step-by-step explanation:

3 0

3 years ago

How do you find what the sides of a rectangle equal using the area and perimeter?

ira [324]

Do you have a specific question we could solve?

3 0

3 years ago

Read 2 more answers

If each of the following represents the slope of a line (or line segment), give the slope a line that is perpendicular to it. (a

Crank

Answer:

$m_2 = -\frac{3}{4}$ -- (a)

$m_2 = -\frac{7}{3}$ -- (b)

$m_2 = -\frac{1}{4}$ --- (c)

$m_2 = -3$ -- (d)

Step-by-step explanation:

Given

$a.\ m = \frac{4}{3}$

$b.\ m = \frac{3}{7}$

$c.\ m = 4$

$d.\ m = \frac{1}{3}$

Required

Determine the slope of a perpendicular line

In geometry, the condition for perpendicularity is:

$m_2 = -\frac{1}{m}$

This formula will be applied in solving these questions.

$a.\ m = \frac{4}{3}$

$m_2 = -\frac{1}{m}$

Substitute 4/3 for m

$m_2 = -\frac{1}{4/3}$

Express as a proper division

$m_2 = -1/ \frac{4}{3}$

Convert to *

$m_2 = -1* \frac{3}{4}$

$m_2 = -\frac{3}{4}$

$b.\ m = \frac{3}{7}$

$m_2 = -\frac{1}{m}$

Substitute 3/7 for m

$m_2 = -\frac{1}{3/7}$

Express as a proper division

$m_2 = -1/ \frac{3}{7}$

Convert to *

$m_2 = -1* \frac{7}{3}$

$m_2 = -\frac{7}{3}$

$c.\ m = 4$

$m_2 = -\frac{1}{m}$

Substitute 4 for m

$m_2 = -\frac{1}{4}$

$d.\ m = \frac{1}{3}$

$m_2 = -\frac{1}{m}$

Substitute 1/3 for m

$m_2 = -\frac{1}{1/3}$

Express as a proper division

$m_2 = -1/ \frac{1}{3}$

Convert to *

$m_2 = -1* \frac{3}{1}$

$m_2 = -\frac{3}{1}$

$m_2 = -3$

4 0

3 years ago