Answer:
-2(-5)^2+7
-2(25)+7
-50+7
-43
Represent the following sentence as an algebraic expression, where "a number" is the
letter x. You do not need to simplify.
The product of 2 and the difference of a number and 9.
Answer:
1
Step-by-step explanation:
2
a 21-ounce box of cereal costs $3.87.what is the unit price of the cereal?
Answer:
$0.18 per ounce
Step-by-step explanation:
$3.87/21=0.1842857....
Round to the nearest $0.01
1 ounce box cost $0.182.
What is Unitary method?It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.
Steps to Use Unitary MethodFirst, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.
Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.
Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.
Given:
21-ounce box of cereal costs $3.87
So, 1 ounce box cost= 3.84 / 21
= $0.182
Hence, 1 ounce box cost $0.182.
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Find the slope of the line passing through each of the following pairs of points and draw the graph of the line.
(−4, 3), (2, 3)
Answer:
0, draw a horizontal line
Step-by-step explanation:
vert. change/hori. change
(3-3)/(-4-2)=0/-6=0
The equation c = 2r + 8 represents the cost of an amusement park. C represents the total cost, r is the cost per ride and 8 is the entrance fee to enter. Determine whether there is a proportional relationship between r and c.
Answer:
yes there is because if you do
Which point most closely represents V20 on the number line above?
Answer:
C
Step-by-step explanation:
The square root of 16 is four, and the square root of 25 is 5, so the answer would have to be in between the two.
2). Bill has twice as many candies as Fred. Tim has 3 fewer than 3 times as many candles as Fred.
In all, they have 177 candies. How many do they each have?
Step-by-step explanation:
Answer:-[tex]\tt{Let \ the \ candies \ taken \ by \ Fred \ be \ x.}[/tex]
Now, let's Solve!
So, according to Question,
Bill = 2x
Tim = 3x-3
Total Candies = 177.
[tex]\bf{x+2x+3x-3=177}[/tex]
Totalling x,
[tex]\bf{6x-3=177}[/tex]
[tex]\bf{6x=177+3}[/tex]
[tex]\bf{6x = 180}[/tex]
[tex]\boxed{\sf{x = 30}}[/tex]
So, Fred has 30 candies.
Bill's Candies = 2×30 = 60 Candies
Tim's Candies = 3×30-3 = 90-3 = 87 Candies.
Hope it helps :)
Simplify the following expression. 5/2 + 11/60
A. 31/60
B. 3/5
C. 2/9
D. 37/60
Answer:
None; equals 161/60
Step-by-step explanation:
5/2 + 11/60
*60 *2
300/120 + 22/120
= 322/120
/2
161/60
thank you in advance
how do i solve or come up for things like this for example:
write an equation for the line that passes through (3,-6) and (8,9)
Answer:
rise/run 6/15 6/15 = 0.4
Step-by-step explanation:
Answer:
y=15/-5x+5 OR y=-3x+5
Step-by-step explanation:
any answer works. the 2nd one is just the simplified version of the first one
I
- Marissa is trying to lose some weight. So far she has lost 13 pounds. Her goal is
to lose 51 pounds. She is on a calorie counting plan that will allow her to lose
2 pounds a week. What is the minimum number of weeks she must follow her
plan before she hits her goal?
Answer:
6
Step-by-step explanation:
how do you write y-2=-1/3(x-7)
Answer:
y= -1/3 + 13/3
Step-by-step explanation:
y-2=-1/3(x-7)
Use the distributive property to simplify the right side of the equation
y-2=(-1/3 * x) + (-1/3 * -7)
y-2=-1/3x + 7/3
Add 2 to both sides get the y by itself. 2 can be expressed as 6/3
(y-2) + 2=(-1/3x + 7/3) + 6/3
y= -1/3x + 13/3
Sorry for the weird looking image help me please :)
1 : Go .....
[tex]A= bh \: [/tex]
Divided sides by b
[tex] \frac{A}{b} = h \times \frac{b}{b} \\ [/tex]
thus ;
[tex]h = \frac{A}{b} \\ [/tex]
_________________________________
2 : Go .....
[tex]area = height \times length(base) \\ [/tex]
[tex]45 = h \times 9[/tex]
Divided sides by 9
[tex] \frac{45}{9} = h \times \frac{9}{9} \\ [/tex]
[tex]h = 5 \: ft[/tex]
And we're done...
♥️♥️♥️♥️♥️
Whats a equation that has many solutions?
Answer:
3x + 1 - 6 = 3x + 2 - 7
Step-by-step explanation:
Since both sides of the equation are equal, x has infinite solutions.
Which table does not represent a proportional relationship? Please give an accurate answer and explanation! thank you so much and good luck. whoever I declare brainiest gets 25 points
Answer:
the 2nd one
Step-by-step explanation:
Bruh can someone please help me
Three roots of a fifth degree polynomial function f(x) are –2, 2, and 4 + i. Which statement describes the number and nature of all roots for this function?
Answer:
The statement is;
The polynomial function has 3 roots with 2 being real roots and 1 being a complex root
Step-by-step explanation:
Here, we want to state the description of the number and nature of all roots for this function.
The statements are;
1. The polynomial have three roots
2. There are 2 real roots and 1 complex root
Answer:
A
Step-by-step explanation:
on edg 2020!
Determine which ordered pair is a solution of y= x+2/5
Wouldn’t it be (0, 2/5)?
Answer:
(-1,2/5) i'm pretty sure
Step-by-step explanation:
Answer:
(2, 2 2/5)
Step-by-step explanation:
(0, 2/5) is correct, and since the slope is 1, adding any number to both the x and the y would still make it a solution.
In this case, you could add 2 to both x and y, resulting in (2, 2 2/5).
Hope it helped, and if it did, could you consider giving me brainliest? :)
when a figure translated, reflected, or rotated, what’s the same about the original figure and it’s image? what’s different
Answer:
The size of the figure is still the same, but the positioning on the coordinate grid is different.
Step-by-step explanation:
The size of a figure remains constant when it is translated, reflected, or rotated, but its location on the coordinate grid changes.
What is reflection?A reflection is a type of transformation that involves flipping a shape, known as the preimage, across a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you turned the form across the line to graph a reflection. The reflection equation of the new reflected graph will be y=f(x), y = f (x) given an equation, y= -f(x), y = -f (x). In other words, the function is just multiplied by 1, which results in a curve that crosses the x-axis.The size of a figure remains constant when it is translated, reflected, or rotated, but its location on the coordinate grid changes.As, it is stated in the description that the size of a figure remains constant when it is translated, reflected, or rotated, but its location on the coordinate grid changes.
Therefore, the size of a figure remains constant when it is translated, reflected, or rotated, but its location on the coordinate grid changes.
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Use the side lengths of triangle DEF and the fact that the triangles are similar to find the length of side AB and type your answer below. (Note: Do NOT include a unit label in your answer.)
ILL GIVE YOU A BRANLIEST IF YOU GET IT RIGHT
[tex] \frac{12}{3} = \frac{AB}{4} \\ [/tex]
[tex]4 = \frac{AB}{4} \\ [/tex]
Multiply sides by 4
[tex]AB = 16[/tex]
which two points lie on a line with a slope closest to zero ?
Answer:
Point N and point K
Step-by-step explanation:
The steeper a line is in the graph, the greater the value of the slope of the line would be, and also, the farther it would be from 0. On the other hand, the more gentle and less sloppy a line is, the smaller the value of the slope is, and also, the closer it is to 0.
From the graph given, there are possible set of points in a line that have a gentle line slope.
The first is, points N and K. The slope of this line is ⅑.
The second is, points P and L. The slope of this line is ⅙.
From the two above lines, the one with a slope closest to 0 is the line that runs through points N and K. ⅑ is closer to 0 than ⅙.
Jade can do 65 push ups in 5 minutes. At the same rate, how many push ups can you expect her to do in 7 minutes?
Answer:
91
Step-by-step explanation:
Set up a proportion, where x is the number of push ups she can do in 7 minutes
[tex]\frac{65}{5}[/tex] = [tex]\frac{x}{7}[/tex]
Cross multiply and solve for x:
5x = 455
x = 91
So, Jade can do 91 push ups in 7 minutes
Answer:
She can do 91 pushups
Step-by-step explanation: make an equation
It was -8°F in the morning. The temperature increased throughout the day, and in the afternoon, it was 11°F. How much did the temperature change?
Answer:
19
Step-by-step explanation
This is simple
I will teach you a simple technique
Count them, don't count the -8
-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
You are just subtracting, but instead counting.
I said not to count -8, because normally in subtraction, we normally don't count the number we are subracting.
for example
8 - 7 = 1
so counting technique
8 - 7, 6, 5, 4, 3, 2, 1
there are 7 numbers, if i didn't count the 8
so it is right.
hope you understand :-)
19(-16)
helpppppppppppppppp
Determine the y-intercept of the following parabola:
y = 2(x - 5)2 + 4
(0,____ )
Answer:
(0, 54)Step-by-step explanation:
(x, y) = (0, __) ⇒ x=0
y = 2(x - 5)² + 4
y = 2(0 - 5)² + 4
y = 2×25 + 4
y = 50 + 4
y = 54 ⇒ (0, 54)
There are 3 cats in a room and no other creatures. Each cat has 2 ears, 4 paws, and 1 tail.
"A diagram of 3 identical cats."
There are ______ paws for every tail.
Group of answer choices
4
1
2
8
6TH GRADE NOT 10 :)
Answer:
4 paws for every tail. Hope this helps.
Answer:
4:1
Step-by-step explanation:
0505050505050505050 multiplied by 485948
Answer:
[tex]Product = 2.4542828 * 10^{24}[/tex]
Step-by-step explanation:
Given
[tex]Digit= 0505050505050505050[/tex]
[tex]Digit = 485948[/tex]
Required
Determine the product
The product is:
[tex]Product = 0505050505050505050 * 485948[/tex]
[tex]Product = 2.4542828 * 10^{24}[/tex]
Please help for 50 points
Answer:
sometimes
never
always
sometimes
Step-by-step explanation:
Answer:
sometimes
never
always
sometimes
Step-by-step explanation:i did this...i got it correct
My question is in the picture:)
Answer:
10,000
Step-by-step explanation:
Rubi works at a party-planing company and makes $7.50 per hour. Her weekly paycheck also inclides a $5 bonus for every party she schedules. Her $265 paycheck last week was for 30 hours. How many parties did she schedule? Explain how you found you're answer.
Answer:
8 parties
Step-by-step explanation:
First, find how much of her paycheck was from working 30 hours:
7.50(30)
= 225
Then, subtract this from 265, to find how much money was from bonuses:
265 - 225
= 40
To find how many parties she scheduled, divide 40 by 5, since each party she schedules gives her a $5 bonus:
40/5
= 8
So, she scheduled 8 parties
Stephanie took a science exam that had two parts. Part 1: She got 16 questions correct, which was 45 of the number of part 1 questions. Part 2: She got 16 questions correct, which was 23 of the number of part 2 questions. What was the total number of questions on Stephanie's exam? 32 40 44 48
Answer:
44
Step-by-step explanation:
Let x and y be the total number of questions in part 1 and part 2 exams respectively.
For part 1:
Number of correct question = 4/5 of the total number of question in part 1
[tex]\Rightarrow 16=\frac{4}{5}\times x[/tex]
[tex]\Rightarrow x=20[/tex]
For part 2:
Number of corrected question = 2/3 of total number of question in part 2
[tex]\Rightarrow 16=\frac{2}{3}\times x[/tex]
[tex]\Rightarrow x=24[/tex]
So, the total umbers of the questions on Stephanie's exam
=x+y
=20+24
=44
Hence, the total umbers of the questions on Stephanie's exam was 44.
Fifteen is equal to 7 more than twice a number. Write the equation and
nd the number.
