How can the addition porperty of equality be used to solve substraction equations? (Please answer correctly)(no links)
Answer:
just as you can add the same value to each side of an equation without changing the meaning of the equation, you can subtract the same value from each side of an equation.
by-step explanation:
x+7=42
Since 7 is being added to the variable, subtract 7 to isolate the variable.
To keep the equation balanced, subtract 7 from both sides of the equation.
x+7=42
-7 over x+0
-7 over 35
so answer is 35
Calculate the surface area of each figure below. Figures are not drawn to scale.
A sign says that the price on all music equipment is 30% off the original price. you buy an electric guitar for the sale price of $315.
A-what is the original price?
B-How much money did you save off of the original price?
C-What percent of the original price is the sale price?
Answer:
Step-by-step explanation:
sale price = original price minus discount.
discount = original price * discount percent / 100.
let s represent the sale price.
let p represent the original price.
let d represent the discount.
let k represent the discount percent.
the above formulas become:
s = p - d
d = p * k/100
we know that s = 315.
we know that k = 30.
formulas become:
315 = p - d
d = p * 30/100
simplify these formulas to get:
315 = p - d
d = .3p
Using the order of operations, what should be done first to evaluate 6 squared + 10 divided by (negative 5) (3) minus 5?
Subtract 5 from 3.
Divide 10 by –5.
Add 6 and 10.
Evaluate 6 squared.
PLS HELP SHAWTIES !!!!!!!
Answer:
Formula of circumference: pie(use 3.14 or 22/7) x radius (half of diameter or already given radius) x 2
100 + 100 = 200.
Half of 50(diameter) is 25(new radius). 25(radius) x 3.14(pie) x 2(it always will be there when finding circumference) = 157.
200 + 157 is = 357.
357 is your answer.
In the inequality -9 ≤ 9, which number appears farther left on a number line and why?
A~ 9 appears farther left because 9 is smaller than -9
B~ -9 appears farther left because -9 is smaller than 9
C~ -9 appears farther left because -9 is larger than 9
D~ 9 appears farther left because 9 is larger than -9
Answer: B
because of the reason given. (smaller numbers are father left and larger numbers are father right on the number line).
Answer: A is the answer
Step-by-step explanation: since -9 is a negative is and 9 is positive, -9 will appear furthest to the left on a number line.
What value from the set [4.5.6.7.8] makes the equation 8x + 1 = 57 true? Show your work?
No fake/scam answers - No "i dunno" answers - no gacha life avatars
Answer:
7
Step-by-step explanation:
8x+1=57 subtract 1 from each side
8x=56 divide by 8
x=7
Find the missing angle.
Answer:
45°
Step-by-step explanation:
All angles in a triangle add up to 180°
180 - (90 + 45)
= 180 - 135
= 45
Therefore the missing angle is 45°
Answer: answer is 45
Step-by-step explanation:
I added 90 with 45, got 135, then subtracted 180 with 135...
1.What are the 3 central beliefs of Christianity
(20 Points)
A. Trinity
B. The Resurrection
C. Easter Bunny
D. Salvation
E. Buddhism
F. polytheism
Answer:
A, B, and D.
Step-by-step explanation:
A. represents the Holy Trinity. Christians have the belief that the whole universe was created by God.
B. represents the 3rd day after Jesus died, but then he rose. This is the day that Christian's celebrate as Easter.
D. represents the deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.
Hope this helps! :)
God Bless
Please help me with this volume problem!♪☂♧(^.^)
Answer:
C
Step-by-step explanation:
Select the correct expanded form for (Two-thirds) Superscript 4.
Two-thirds times two-thirds times two-thirds times two-thirds
Two-thirds times two-thirds times two-thirds
Two-thirds + two-thirds + two-thirds + two-thirds
Two-thirds times 4
Answer:
A
Step-by-step explanation:
The exponent 4 means it is 2/3 multiplied by itself 4 times.
So it would be 2/3*2/3*2/3*2/3
Can someone help me ??
Answer:
the first one third one and last one
Step-by-step explanation:
Can someone help me with these questions. Find the probability of them all. They ARE NOT answer choices they are QUESTIONS. I will report you if you do not follow directions
Answer:
Step-by-step explanation:
21: 9/15+1/4= 0.85, if you turn that into a percent it is 85%
23: 7/15+1/4 = 0.716, turned into a percent is 71.6%
i dont have the time to finish the rest rn, sorry
Types of submarines and the depths are below sea level they can safely reach are down below are shown in the table below. (The photo)
Which two types of submarines can reach depths farthest from sea level?
A) Pleasure, Military
B) Scientific, Alternative Propulsion
C) Alternative Propulsion, Military
D) Guided Missile, Scientific
Answer:
D
Step-by-step explanation:
The greatest, farthest depths listed are the Guided Missile and Scientific submarines' depths, 850 and 925 feet. So, The answer is D, Guided Missile and Scientific.
Good luck ^^ Hope this helps :)
(Please Help me) Read all of it?
Jason likes to collect coins. Jason got 28 coins from his brother, 31 coins from his mother, as well as 19 coins from Nancy. however, Jason lost 36 coins before putting those coins in his piggybank. How many coins does Jason have in his piggybank?
Answer:
42 easy :)
Step-by-step explanation:
The graph below shows a line of best fit for data collected on the amount customers spent in relation to the discount they received.
The equation of the line of best fit is y = 25x + 7.5. What does the y-intercept represent?
A.
the discount received by a customer who did not make a purchase
B.
the discount per item
C.
the amount spent by a customer who did not receive a discount
D.
the number of items purchased
Answer:C
Step-by-step explanation:
PLS HELP THANK YOUUU- NO BITLY
Answer:
B
Step-by-step explanation:
35/5 = 7 chocolate chips per cookie
15 x 7 = 105
100>105
Helllppppp
-2 1/3-(-5)
Answer:
2.66 :)
Step-by-step explanation:
The answer is 8/3 or 2 2/3
the fraction 5/8 is located between what two fractions?
A. 1/4 and 2/5
B. 8/9 and 3/5
C. 1/2 and 2/3
D. 3/7 and 10/16
I WILL GIVE BRAINLIEST!
(Picture provided)
What is m
A. 56°
B. 68°
C. 112°
D. 124°
Answer:
I couldn't tell which angle you meant, so the two missing angles are Q = 56 and S = 68
Step-by-step explanation:
Q = 180 - 124
Q = 56
56 (angle Q) + 56 (angle R) = 112
S = 180 - 112
S = 68
All students in Ridgewood Junior High School either get their lunch in the school
cafeteria or brought it from home on Tuesday. 10% of students brought their lunch.
41 students brought their lunch. How many students in total are in Ridgewood Junior
High School?
Please help!!
Answer:
410 students attend Ridgewood Junior High.
Step-by-step explanation:
To solve your equation, you have to divide 41 by 10%. This will give you your answer of 410, or the total. Have a good day!
How many ½-foot unit cubes can be added to fill the prism completely?
Use what you know about unit cubes or the side lengths of prisms to show your work or explain your answer.
Answer:
Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units. To find how many cubes are needed to fill the prism, divide 3 cubic units by 0.015625 cubic units. Your answer will be 192 cubes.
Step-by-step explanation:
hope it helps
Answer:
Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units. To find how many cubes are needed to fill the prism, divide 3 cubic units by 0.015625 cubic units. Your answer will be 192 cubes.
Step-by-step explanation:
hope it helps
49. Calculate the value of c in the triangle below.
Answer:
26 cm
Step-by-step explanation:
c = a^2 + b^2 = 10^2 + 24^2 = 26
Answer:
26m.
Step-by-step explanation:
since the triangle has a 90° angle, it means that the triangle is a Right - angled triangle. So, we are going to use the pathagorean theorem to find the missing side.
a² + b² = c²
a and b are the two shorter and adjacent sides to the 90° angle
c is the hypotenuse
10² + 24² = c²
100 + 576 = c²
676 = c²
find the square root of 676 to get c = 26.
In the figure below, R = 2 cm, Q = 2 cm, and P = 4 cm. The figure consists of a small rectangle, a large rectangle, and one-fourth of a circle.
What is the total perimeter of the figure?
The Philadelphia Museum of Art’s triangular pediment has the measurements shown in the diagram. What is the area?
840 ft2 , 840 ft^2
58 ft2 , 58 ft^2
420 ft2 , 420 ft^2
82 ft^2
Answer:
420 ft^2
Step-by-step explanation:
12x70=840
840/2=420
How is unit rate related to the linear equation?
Answer:
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/cc-8th-graphing-prop-rel/v/graphing-proportional-relationships-example
Step-by-step explanation:
Answer:
A proportional relationship between two quantities is one in which the two quantities vary directly with one and other. If one item is doubled, the other, related item is also doubled. Because of this, it is also called a direct variation. The equations of such relationships are always in the form y = mx , and when graphed produce a line that passes through the origin. In this equation, m is the slope of the line, and it is also called the unit rate, the rate of change, or the constant of proportionality of the function.
Write and solve an equation to find the value of x
8. Find the surface area of a triangular pyramid if the area of each phase is 16 cm² and each of its lateral faces has an area of 9 cm².
Answer:
The base of a right pyramid is an equilateral triangle with area 16√3 cm². area of one of its lateral faces is 30 cm²
To find : height (in cm) i
Solution:
The base of a right pyramid is an equilateral triangle with area 16√3 cm²
Area of an equilateral triangle = (√3 / 4) Side ²
(√3 / 4) Side ² = 16√3
=> Side ² = 64
=> Side = 8 cm
Distance of center of triangle to mid point of Side for Equilateral triangle = side/ 2√3 = 8/ 2√3 = 4/√3
Let say Height = H
Slant Height = √((4/√3)² + H²)
Area of lateral surface = (1/2) * base * Slat Height
= (1/2) * 8 * Slant height = 30
=> Slant height = 15/2
15/2 = √((4/√3)² + H²)
=> 225/4 = 16/3 + H²
=> 611/12 = H²
=> H = 7.135 cm
Step-by-step explanation:
Find the base area!!!!! Please help me
Answer:
24 cm^2
Step-by-step explanation:
The base is 4cm by 6cm, so the base area is 24cm^2
The height (h) would be equal to V/A =[tex]\frac{240}{24}[/tex] = 10cm
Answer
the answer is 10 but i dont see the answer so i think it's 40cm
Step-by-step explanation:
Find the constant of proportionality for the table of values and write in the form y = kx
A) y = 1/4x
B) y = 4x
C) y = 6x
D) y = 24x
Answer:
Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Number of lemons used is denoted by 'y'.
Number of glasses of lemonade is denoted by 'x'.
As we can observe that ,
[tex]\frac{6}{24} = \frac{8}{32} = \frac{7}{28} = \frac{2}{8} = \frac{4}{16} = \frac{1}{4} \\[/tex]
so we can write i as
[tex]\frac{x}{y} = \frac{1}{4}[/tex]
By cross multiplication
y=4x
So, if write it in the form y=kx,
It will be y=4x.