What is the value of the expression below when x=10x=10 and y=4y=4? 8x-7y 8x−7y
Answer:
X=10x =10
means here value of X is 1
y = 4y = 4
means here value of y is also 1
now substitute the values of X and y in the equation
8×1-7×1×(8×1-7×1)
8-7(8-7)
64-49
15
There are 50 animals in a shelter. Sixty percent of the animals are dogs. Which equation can be used to find the number of dogs in the shelter?
11 points
Answer:
60/100 divided by 2
Step-by-step explanation:
60%= 60/100
100 divided by 2 is 50
( what you do to the top you do to the bottom)
60 divided by 2 is 30
60/100= 30/50
So the answer is 30
HOPE THIS HELPS o(≧o≦)o ◑﹏◐Heyy guys I need help
===================================================
Explanation:
Since AE = BE, we know that triangle ABE is isosceles with A = B as the congruent base angles (it might help to rotate the triangle 90 degrees clockwise). The congruent base angles are always opposite the congruent sides of an isosceles triangle.
Focus on triangle ABE. Let's find the missing angle E.
A+B+E = 180
55+55+E = 180
110+E = 180
E = 180-110
E = 70
So angle BEA = 70 degrees
This means angle DEC is also 70 degrees. Angles BEA and DEC are congruent vertical angles.
--------------------
Now focus on triangle DEC. We just found E = 70. The diagram shows D = 34. Use these items to find C
D+E+C = 180
34+70+C = 180
104+C = 180
C = 180-104
C = 76
Angle C is 76 degrees
Answer:
hey
Step-by-step explanation:
Alamo Cola manufactures a soft drink made with 0.25% peach juice concentrate. What is this percent expressed as a fraction
A. 1/4 and 0.25
B. 1/4 and 0.0025
C.1/40 and 0.025
D. 1/400 and 0.0025
its a because .25x4=1.00
Answer:
B. 1/4 and 0.0025
Step-by-step explanation:
Please help me with this question.... please...
Answer:
just plug in the x value into the equation and put it in ur calculator
Molly is getting an early start on holiday shopping! She has $55.00 to spend on gifts. She first buys her mom a sweater for 17.50. She then found matching bracelets for her friends that cost $7.50 each. How many bracelets did she buy?
a) Write a let statement below to define your variable(s): *
b) Set up an equation using the variable you defined in (a): *
c) Solve your equation & Check. How many bracelets did Molly buy? JUST TYPE THE NUMBER. EXAMPLE: IF she bough 17 bracelets JUST TYPE "17" *
d) Upload a picture of your SOLUTION & CHECK. *
Plz help me anyone oi need help
Answer:
5
Step-by-step explanation:
55$-17.50=37.5
37.5/7.5=5
On the coloring sheet find the ratio that is equivalent to 2/7
Answer:
Equivalent Ratios of 2 : 7
2 : 7 4 : 14 6 : 21 8 : 28 10 : 35 12 : 42 14 : 49 16 : 56 18 : 63 20 : 70 22 : 77 24 : 84 26 : 91 28 : 98 30 : 105 32 : 112 34 : 119 36 : 126 38 : 133 40 : 140 42 : 147 44 : 154 46 : 161 48 : 168 50 : 175 52 : 182 54 : 189 56 : 196 58 : 203 60 : 210
( Brainlyst helps my rank <3 )
i need help with this asap please
Answer:
The perimeter is 100 feet. This means that all the sides of the shape must add up to equal 100.
x + x + 5 + x - 3 + x + 4 = 100
4x + 5 - 3 + 4 = 100
4x + 6 = 100
4x = 94
x = 94/4
x = 23.5 feet
15.2·0.25−48.51÷14.7/x = ( 13/44 − 2/11 − 5/66 ÷2 1/2 )·1 1/5 / 3.2+0.8·(5 1/2 −3.25)
Plz Answer soon. Need by today
Answer:
x=25
Step-by-step explanation:
Hope it right
what are the solutions to the equation |2x+8|-14?
Answer:
Step-by-step explanation:
Factor out the common term 2.
|2(x+4)|-14∣2(x+4)∣−14
PLEASE HELP ILL GIVE BRAINLIEST
Answer:
1. x = 66
2. C
3. C. 2000
Step-by-step explanation:
1. The first question is x = 66 because to get rid on the fraction you multiply both sides by 4. This leaves you with x + 2 = 68 (minus 2 on both sides) this gives you x = 66.
2. C. Commutative
3. 2000
Plug in
125 = (5)(.0125)(2000)
125 = 125
Hope this helps ya!!
Find the missing number so that the equation has no solutions.
4x+2=_x+12+x
Answer:
2
2 makes it able to never be solved. If I did this correctly
Answer:
yo d see was gotta at brb to fbh gwuhbytujv
Solve for X
[tex] \frac{x - 6}{2} = \frac{2 - x}{x} [/tex]
Answer:
[tex]\huge\boxed{x=2-2\sqrt2\ \vee\ x=2+2\sqrt2}[/tex]
Step-by-step explanation:
[tex]\dfrac{x-6}{2}=\dfrac{2-x}{x}\\\\\text{Domain:}\ x\neq0\\\\\dfrac{x-6}{2}=\dfrac{2-x}{x}\qquad|\text{cross multiply}\\\\(x-6)(x)=2(2-x)\qquad|\text{use the distributive property}\\\\(x)(x)+(-6)(x)=(2)(2)+(2)(-x)\\\\x^2-6x=4-2x\qquad|\text{add}\ 2x\ \text{to both sides}\\\\x^2-6x+2x=4-2x+2x\\\\x^2-4x=4\qquad|\text{add}\ 2^2\ \text{to both sides}\\\\x^2-2\cdot x\cdot2+2^2=4+2^2\qquad|\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-2)^2=4+4\\\\(x-2)^2=8\iff x-2=\pm\sqrt8\\\\x-2=\pm\sqrt{4\cdot2}[/tex]
[tex]x-2=\pm\sqrt4\cdot\sqrt2\\\\x-2=\pm2\sqrt2\qquad|\text{add 2 to both sides}\\\\x-2+2=-2\sqrt2+2\ \vee\ x-2+2=2\sqrt2+2\\\\\huge\boxed{x=2-2\sqrt2\ \vee\ x=2+2\sqrt2}[/tex]
Emily and Tammy each opened checking accounts on the same day, intending to withdraw money for weekly expenses. Emily opened her account with $710 and withdrew $35 per week. Tammy opened her account with $570 and withdrew $25 weekly. In how many weeks, w, will their account balances be equal? Group of answer choices
Answer:
15 weeks
Step-by-step explanation:
Find the slope of the line that passes through (9, 10) and (5, 19).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Submit
Answer:
[tex]m=\frac{-9}{4}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (9, 10)
Point (5, 19)
Step 2: Find slope m
Substitute: [tex]m=\frac{19-10}{5-9}[/tex]Subtract: [tex]m=\frac{9}{-4}[/tex]Simplify: [tex]m=\frac{-9}{4}[/tex]-8m - 12 > -5(m - 8) – 3(m - 7)
Write the solution to the inequality
Answer:
No answer.
Step-by-step explanation:
- 8m - 12 > -5m + 40 - 3m + 21
combine terms
-8m - 12 > -8m +61
add 8m to both sides
-12 > 61
negative 12 is not greater than 61
x + 2x + 12y + 4 Using the expression shown, add like terms and produce an equivalent expression.
Answer: 3x+12y+4
Step-by-step explanation:
The only like terms are the x+2x so we add them to get the simplfied answer
Answer:
3x + 12y + 4
I dont really know how to explain but since there is an X at the and of the 2, you can add X + 2x to get 3x. Since 3x, 12y, and 4 are not alike, this is the simplest form.
Identify the range of the function shown in the graph.
10+
8
8
4
-10 -8 18
4
-B
-10
Answer:
-10?
Step-by-step explanation:
Customers of a certain credit card earn points for using the card. The table below shows the number of points earned for the amount spent. ( Photo Attached )
Predicted number of points for spending $10 :
___
Will give Brainliest (:
Answer:
Just hit continue.
Step-by-step explanation:
The predicted amount is for the second button only.
Each dollar spent does not always earn the same number of points.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Customers of a certain credit card earn points for using the card.
The table shows the number of points earned for the amount spent.
Now, By the given table which shows the number of points earned for the amount spent.
⇒ Number of points in 4 dollars = 36
Hence, Number of points in 1 dollars = 36/4 = 9
⇒ Number of points in 7 dollars = 56
Hence, Number of points in 1 dollars = 56/7 = 8
⇒ Number of points in 9 dollars = 72
Hence, Number of points in 1 dollars = 72/9 = 8
Thus, We get;
⇒ Each dollar spent does not always earn the same number of points.
Learn more about the mathematical expression visit:
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si en una caja hay 5 pelotas una verde una amarilla.una azul.una negra y una roja ya a salido la rija y la verde cual es la posibilidad de sacar la azul en una cuarta vez
Answer:
uno a tres
Step-by-step explanation:
Creo que es correcto
Avísame si estoy equivocado
Y que tengas un feliz día de acción de gracias
PT2 To my last question!!!! please answer quickly
Answer:
3rd one
Step-by-step explanation:
Brainliest?
Add, subtract, multiply, or divide. Can someone help me please.
7: 8+（-4）=-2
8: -7+2=-5
9: -11-7=-18
10: 12÷（-6）=-2
11: -9×（-3）=27
12: 4-（-3）=7
13: -45÷9=-5
14: 6×（-3）=-18
I need help with this slope problem
Answer:
what is it? you did not post the picture
Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4
Answer:
Domain: (-∞,∞)
Range:(-∞,∞)
Step-by-step explanation:
The sketch of the given function has been attached and the domain and range both will be (-∞,∞ ).
What is a linear function?A straight line on the coordinate plane is represented by a linear function.
A function that fluctuates linearly with respect to the changing variable is referred to as being linear.
A linear function always has the same and constant slope.
The formula for a linear function is f(x) = ax + b, where a and b are real values.
Given the function,
ƒ(x) = -5x + 4
Range of the function ;
Since the value of the function is defined for all real x and the value will be unique so
Range = (-∞,∞ ).
The domain of the function ;
Since it is defined for all real x so,
Domain = (-∞,∞ )
For more about the linear function
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is this relation a function? justify your answer.
please help!
Answer:
C
Step-by-step explanation:
No, because you can not use the same X more than once. It has to pass the vertical line test. So it'll be option C
In a survey of 500 people, 31% percent said they were afraid of flying what decimal represents the number of people who said they were afraid of flying?
Answer:
0.31
Step-by-step explanation:
Given that :
Total number surveyed = 500
Percentage who are afraid of flying = 31%
Decimal which represents number of people who are afraid of flying :
Converting 31% into decimal form:
31 / 100
= 0.31
Hence 0.31 of the people surveyed were afraid of flying
Could anyone help please?
Answer:
9.6 or round it to 10
Step-by-step explanation:
brainliest pls
write the equation of a line in point slope form that passes through the point (3,6) and has a slope of -2/3
Dose anyone know this? Like I'm confused on what to do.
4×2×(-3)+(-10)÷5
Answer:
start with the prostheses first and the -3 and -10 together us
Step-by-step explanation:
Please
excuse
my
dear
ant
sally
Answer:
-26
Step-by-step explanation:
4×2×(-3)+(-10)÷5
=(8)(−3)+−10/5
=−24+−10/5
=−24+−2
=−26
The formula d-2r can be used to find the distance(d) traveled after 2 hours when driving at rate r.
A. Solve the formula for r.
B. Find the rate(r) when the distance traveled is 130 miles.
Answer:
A. d/2 = r
B. r=65 miles/hour
Step-by-step explanation:
A. d/2 = 2r/2
B. Using the formula you found for R it is
130/2= r, therefore r = 65
The formula for r is:
r = d/2.
The rate r when the distance traveled is 130 miles is:
= 64 miles per hour.
Given,
The formula d = 2r can be used to find the distance(d) traveled after 2 hours when driving at rate r.
We need to:
- Solve the formula for r.
- Find the rate(r) when the distance traveled is 130 miles.
What is the formula for speed?Speed = distance / time
We can find the distance as:
distance = speed x time
We have,
d = 2r where d = distance and r = rate.
Here 2 = 2 hours
The formula for r :
d = 2r
Divide both sides by 2.
d/2 = r
r = d/2
r = distance / 2 hours
The rate at a distance of 130 miles is:
d = 130 miles
r = d / 2
r = 130 / 2 = 65 miles / hour
Thus,
The formula for r is d/2.
The rate r when the distance traveled is 130 miles is 64 miles per hour.
Learn more about how to find speed here:
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