Find the y-intercept of 91-90/19-16.

Answers

Answer 1

Answer:

Answer:

$91 - 90 / 19 - 16$

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Book a has 24 more pages than book b.book c has 4 times as many pages as book a.the total number of pages of the three books is 180.how many pages does book b have ?please show the work

Answers

a=b+24
c=4a
b=a-24
a+b+c=180
sub in a,b and c into a+b+c=180
b+24+4a+a-24=180
b+5a=180
sub a=b+24
b+5(b+24)=180
b+5b+120=180
6b=180-120
6b=60
b=10
Book B has 10 pages

a=24+b
c=4a
c=4(24+b)
a+b+c=180
24+b+b+4(24+b)=180
24+b+b+96+4b=180
120+6b=180
6b=60
b=10
a=24+10
a=34
c=4(34)
c=136
34+10+136=180
So book a has 34 pages, book b has 10 pages, and book c has 136 pages.

Which decimal number is greater than 1.09?1.09
1.08
1.02
1.23

5 PIONTS+ BRAINLYESS

Answers

The last one is the answer 1.23

1.23 is the correct answer.

The equation d= -6t + 10 represents the distance d, in miles, Ralph walks from the library to his house in t hours. His sister, Joan, leaves the library right after Ralph. She rides her bicycle from the library to their house at a constant rate. The equation d = 14t represents Joan's bicycle ride where d, is the distance, in miles, and t is the time, in hours.After how many miles will Joan meet Ralph walking to their house?
A. 2.5 miles
B. 7 miles
C. 18 miles
D. 28 miles

Answers

Answer:

B. 7 miles

General Formulas and Concepts:
Algebra I

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Terms/Coefficients

Functions

Function Notation

Systems of Linear Equations

Solving methods: Substitution/Elimination

Step-by-step explanation:

Step 1: Define

Identify given.

[Ralph's Walking Distance Function]: d = -6t + 10

[Joan's Bicycle Distance Function]: d = 14t

Step 2: Find Meeting Point

To find where Joan and Ralph will meet, we need to find where they intersect. Therefore, we need to find the time which they both meet up at. To do this, we can use the process of substitution to find our value of t:

[Equation 1] Substitute in d:
$\displaystyle\begin{aligned}d = -6t + 10 & \rightarrow 14t = -6t + 10\end{aligned}$

From here, we can simply use techniques listed under "Algebra I" to solve for t:

$\displaystyle\begin{aligned}14t & = -6t + 10 \n20t & = 10 \nt & = \boxed{ (1)/(2) } \n\end{aligned}$

∴ both Joan and Ralph will meet up in half an hour, or 0.5 hours.

Step 3: Find Mileage

To find how many miles they will meet up at, we substitute the number of hours elapsed (found in Step 2) and substitute it into any of the equations given:

$\displaystyle\begin{aligned}d & = 14t \n& = 14 \bigg( (1)/(2) \bigg) \n& = \boxed{7} \n\end{aligned}$

∴ Joan will meet Ralph after 7 miles.

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Learn more about Algebra I: brainly.com/question/10405469

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Topic: Algebra I

What is the equation of the graphed line? Hint: Determine the slope of the line y = x .

Answers

y=-5x

you can use point slope or slope intercept to find this one. i did it by using slope intercept, y=mx+b
b in this case is 0, and then to find m you use (y-y)/(x-x) or (-5-0)/(1-0) = -5

A store is having a sale to celebrate president day. Every item in the store is advertised as one fifth off the original price of $140, what was it's original price.?

Answers

since $140 is 1/5 of the original price
the original price is 5/1 x 140 = $700

Write 3/4 3/6 1/3and2/12 in order to least to grater

Answers

It would be 2/12, 1/3, 3/6, and 3/4

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