Jack borrowed $1.50 from his friend Jenna every day for five days last week. What rational number represents how much Jack owed his friend last week?
Answer:
$7.50
Step-by-step explanation:
set up an equation: $ x days = total owed
1.50 x 5 = 7.50
A one story house is 2,200 square feet. 40% of the house has a basement. How many square feet is the basement?
Answer:
880 ft²
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
2,200 ft²
40% (0.4) of the house is basement
Step 2: Evaluate
Set up: 2200(0.4)Multiply: 880Here we see that 880 ft² out of the 2200 ft² would represent the allocated space for the basement.
Answer:
880 square feetStep-by-step explanation:
Full story = 2200 square feet
Basement = 40% of the story
Basement is:
2200*0.4 = 880 square feetwhich matrix represents the system of equations shown below ? 4x-2y=5 5x- y=8
4 -2 5
5 -1 8
this is what it showed in brackets as the correct answer.
The matrix that represents the system of equations 4x-2y=5 and 5x- y=8 is [tex]\left[\begin{array}{cc}4&-2\\5&1\end{array}\right] \left[\begin{array}{c}5&8\end{array}\right][/tex]
How to determine the matrix?The system of equations is given as:
4x-2y=5
5x- y=8
Remove the variables
x y
4 -2 5
5 -1 8
Represent as a matrix
[tex]\left[\begin{array}{cc}4&-2\\5&1\end{array}\right] \left[\begin{array}{c}5&8\end{array}\right][/tex]
Read more about matrix at:
https://brainly.com/question/1821869
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-3/10h = 15, what is h?
Answer:
-50
Step-by-step explanation:
which list shows the numbers in order from least to greatest?
-2,-3-0-2-3
0,-3-2,2,3
-3-2,0,2,3
0,-2-3,2,3
Choice 3
Step-by-step explanation:
-3 is the smallest and 3 is the biggest number
Anybody can help me with this one?
Answer:
look pic
Step-by-step explanation:
the -1/4 is the slope and 5 is where you start
The expression 2x + 3.4 is equal to ? for x =1.6.
Answer:
6.6
Step-by-step explanation:
what is the slope of the line shown in graph
A. -2
B. -1
C. 1/-2
D. 1/2
Answer:
-1/2
Step-by-step explanation:
using rise over run its 1/-2 which is just -1/2
What are the x and y intercept.
Answer:
x-intercept is 6 y-intercept is -3
Step-by-step explanation:
It's really simple to graph it especially if you have something that does it for you however when you graph it-it's pretty clear which ones it is so I suggest graphing it.
Point-slope form of the line that passes through (-8,2) and is perpendicular to a line with a slope of -8
Answer:
y-2=1/8(x+5)
Step-by-step explanation:
1. Perpendicular lines have opposite slopes. To get the new slope, take the slope of the first line and turn it to make it the opposite reciprocal.
Since it's -8, the opposite of it is 1/8.
2. Now, use point slope: y-y1=m(x-x1). Plug in the values of the ordered pair and the slope into the equation.
y-2=1/8(x+8)
And that's your answer
I need help with this question pleaseeee
Answer: 639
Step-by-step explanation:
i might be wrong but that's how i was taught! :)
if the temperature drops from 7f to -17f how much did the temperature decrease
Answer:
there was a decrease of 24 degrees.
Step-by-step explanation:
7-24=-17
Answer:
there was a decrease of 24 degrees.
Step-by-step explanation:
7-24=-17
The solution to the system of equations shown is (2, 0).3x − 2y = 6x + 4y = 2When the first equation is multiplied by 2, the sum of the two equations is equivalent to 7x = 14.Which system of equations will also have a solution of (2, 0)?6x - 4y = 6x + 4y = 26x − 4y = 62x + 8y = 2x + 4y = 27x = 146x − 4y = 67x = 14
the answer is c i got it on edge 2020
Answer:
c
Step-by-step explanation:
whats in improper fraction equal to 9 and 3/5
Answer:
48/5
Step-by-step explanation:
Answer: 48/5
9 multiplied by 5 is 45. Add three to get 48
Fint the are and perimeter of the shape at the bottom
Answer:
Area: 59.5 ft squared
Perimeter: 31.6 feet
Step-by-step explanation:
Area:
For the area of the square, you're going to use the formula length times width. The length and width are both 7, so you'll do 7 times 7, which is 49. Next, you need to find the area of the triangle. It's a bit more confusing since they give you the hypotenuse (7.6 ft), but they did that to try and trick you. The area of a triangle is length times width divided by two. So, you're going to take the width (3) and multiply it by the length (7). The length is 7 because the length of the square and the triangle are the same since the bottom of the triangle is the same length as the top of the square. Anyway, using the formula, you will do 7 times 3 divided by 2, which is 21 divided by 2, which is 10.5. Add the 10.5 to the 49 we got from the square, and you'll get 59.5 feet squared.
Perimeter:
For the perimeter, you just need to add the side lengths. Starting at the top and going to the right, we can add 7.6+7+7. We don't get the left length, but it's the same as the rest of the square (7) because all sides of a square are equal. So, now we have 7.6+7+7+7, which is 28.6, and we just need the last one which is 3, so the final answer is 31.6 feet.
Answer:
Area: 59.5 ft squared
Perimeter: 31.6 feet
Step-by-step explanation:
Could I get some help it’s important
Answer: yo plug it into desmos its ez
Step-by-step explanation:
Answer:
plot a point at (0,-7) and plot a point at (1, -4). Draw a line through those points.
Step-by-step explanation:
The equation tells you that your y intercept will be negative 7. The 3x means that your slope will be equal to up 3, and over 1 (or 3/1, which is equal to 3.)
Which expression shows the prime factorization of 30?
2 x 3 x 5
3 x 5 x 7
3 x 5 x 5
2 x 2 x 3
Answer:
A
Step-by-step explanation:
because 2x3 equals 6
then 6x5 equals 30
( i did the math for the other ones and its a;)
Show me the steps to solving this equation. 3x + 2 = 14
Answer:
4
Step-by-step explanation:
multiply 3 by 4 to get 12 and add 12 to 2 and you get 14
PLEASEEEEE HELP ME IF YOU GET THIS QUESTION!!
Answer:
one and a quarter mile
please can i have brainliest
PLZ ANSWER WILL MARK BRAINLIEST
Answer:
I think the answer is C Angle-Angle-Side im not sure if im accurate but i hope it helps
Step-by-step explanation:
A ratio of 3 erasers and 6 pencils could be expressed as 3:6. If the number of erasers is represented by white circles and the number of pencils is represented by black circles, which is a correct representation of the ratio?
Answer:
It'd be C.
There are 3 erasers shown and 6 pencils and to simplify the given ratio it would be 1:2
So the third representation would be the one that made the most sense.
Answer:
Option 3
Step-by-step explanation:
Ratios can be written as fractions, so 3:6=3/6. That can be simplified to 1/2, 1:2. That mesns for every eraser, there are two pencils. If white circles are erasers and black circles pencils, the correct answer will be the answer with one white circle and two black circle in each group. So the correct answer will be the third one.
HELP HELP HELP PLEASSSEEEE!!!!!!! THIS IS MAKING MY MIND GO NUTS!
Answer:
2.5 hours
Step-by-step explanation:
They are 22.5 miles apart. Chase is going 6 mph and Jada is going 3 mph.
6 × 2 = 12
6 × 0.5 = 3
12 + 3 = 15 miles
3 × 2 = 6
3 × 0.5 = 1.5
6 + 1.5 = 7.5 miles
15 + 7.5 = 22.5 miles
It would take them 2.5 hours to reach each other.
Hope that helps.
6 − 3.98 what is the answerrrrr
Answer:
2.02
Step-by-step explanation:
also you can do these on just a calculator :D
What does x = if x multiplied by 7/3 = 1
Answer:
Step-by-step explanation:
X×7/3 =1
X=3/7
A 30 foot ladder is placed against a vertical wall so that the base of the ladder is 10 feet from the base of the wall. How far up the wall does the ladder reach?
Answer:
the answer is approximately 28.28
Step-by-step explanation:
you use the pythagorean theorem to find the last length. I could explain it further, but you can take my word for it, its correct. I double checked.
Find the solution set of the inequality
- 4x + 35 > 2
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x < 33/4
Interval Notation:
(− ∞, 33/4)
PLEASEEE HELP ME PLEASEE!!
1. How many real solutions does the quadratic equation x?+9x= -8 have?
Answer:
This quadratic equation has 2 solutions.
Step-by-step explanation:
I assume the '?' in your question is meant to be power 2 (²), or else it would not be a quadratic equation. You could write it using the superscript version of 2.
We can solve this equation by expressing it in the form: ax² + bx + c
x² + 9x= -8
x² + 9x + 8 = 0
Now if you know the discriminant, you can simply plug in your values of a, b, and c to see how many solutions there are.
In this case, you would not need the discriminant as there are whole-number factors and hence this can simply be factorised.
x² + 9x + 8 = 0
(x + 8)(x + 1) = 0
For this equation to be true (= 0), x can equal -8 OR -1.
Hence, this quadratic equation has 2 solutions.
Challenge You have 2 different savings accounts. For Account A, the simple interest earned after 21 months is $8.66. For Account B, the simple interest eamed after 33 months is $34.65. If the interest rate is 3.3% for Account A and 2.1% for Account B, how much is the principal in each account? Which account earned you the most interest the first month? Explain your answer. Account A has a principal of $. (Round to the nearest dollar as needed.)
Step-by-step explanation:
you have to defend saving account for account a decent wages and after 24 months in 26 is how can be the same creatures and after 30 months 34.6 $5 if the interest rate is 3.0% for accounting and private beach FL County how much is the first create account which account NG the most interesting person explain how the agency has baseball first round to the nearest Dollar is in the car so this guy if you know you know the one you want me to answer you come and tell me stop doing on since that was your own I mean if you have the correct answer you I hate you have to correct question because I can't see the question to answer because I just sold if interested to 2502 I can't see the real question here thank you
help plzzzzzzzzzzzzzzzzzzzzz
Answer:
like what type of help that i could help u
Answer:
I think it might be 6.75x - 19.25 = 80
Step-by-step explanation:
6.75x−19.25=80
Step 1: Add 19.25 to both sides.
6.75x−19.25+19.25=80+19.25
6.75x=99.25
Step 2: Divide both sides by 6.75.
6.75x/6.75 = 99.25/6.75
x=14.703704
