Answer:
1; 12.75
2; 47.8 or 47.3
Step-by-step explanation:
52× .25 is 13 then you subtract .25 from 13
and
94.60× .5 is 47.3 then you add the tax, 47.3+ .5 is 47.8.
Answer:
1; 12.75
2; 47.8 or 47.3
Step-by-step explanation:
6x + 4 = 5x+17 + 120
need this answerd ASAP pls! thank u!
Answer:
x = 133
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
6x + 4 = 5x + 17 + 120
Step 2: Solve for x
Combine like terms: 6x + 4 = 5x + 137Isolate x terms: x + 4 = 137Isolate x: x = 133Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 6(133) + 4 = 5(133) + 17 + 120Multiply: 798 + 4 = 665 + 17 + 120Add: 802 = 682 + 120Add: 802 = 802Here we see that 802 does indeed equal 802.
∴ x = 133 is the solution to the equation.
If an= 4+2(n-1), what is the first term?
Answer:
4
Step-by-step explanation:
4 is the base of the equation and then as it goes on, you add 2* the point in the sequence -1
5[8(7−4)÷6]
What is the value of the expression?
Answer:
20
Step-by-step explanation:
5[8(7−4)÷6]
5[8(3)/6]
5{24/6]
5[4]
20
Answer:
20 is the right answer.
Step-by-step explanation:
→5[8(7-4)÷6]
=5[8(3)÷6]
=5[24÷6]
=5[4]
=20
Evaluate the expression (1/4) {x(2y+3z)} when x=8, y=3, and z=2
Answer:
24
Step-by-step explanation:
x = 8, y = 3, z = 2
(1/4) x {8[2(3)+3(2)]}
(1/4) x {8(6 + 6)}
(1/4) x {48 + 48} (by distributing)
1/4 x 96
= 24
!Help !
Joelene goes to bed three hours after dinner. Yesterday, after dinner, she spent 1 ½ hour on her homework and ⅔ of an hour on the telephone. Home much time did she have left before bedtime?
Answer:
50 minutes
Step-by-step explanation:
she spent 1 hr and 30 minutes on homework
she spends 2/3 of an hour on the phone = 40 minutes
1 hr 30 min + 40 minutes = 2 hrs and 10 min
so she had 50 minutes to kill before bedtime since she goes to sleep 3 hrs after dinner
2hr 10 min + 50 min = 3 hrs.
will give brainlest 5 star and thans
Answer:
96 in
Step-by-step explanation:
PLS HELP WITH MATH WILL MARK BRAINLIEST 30 POINTS!!
Emily is encouraged to read more than 4 hours each week. It takes her 45 minutes to finish her first book. She divides the remainder of the time equally amongst the other six days. What is the minimum number of minutes she should read each day?
A. x > 32.5 minutes
B. x > 40 minutes
C. x \leq 32.5 minutes
D. x[\leq 40 minutes
Answer: D
Step-by-step explanation:
40+40= 1 hour 20 min
40+40= 1 hour 20 min
40+40 = 1 hour 20 min
40————-> 40 min
Add all together you get 4 hours in one week
Your welcome !
Solve for x
-30 = 5(x + 1)
=
julie buys 2kg of apples and 7kg of peras for £12.70 the pears cost 1.30 per kilogram what is the price per kilogram of the apples
Answer:
1.80
Step-by-step explanation:
1.30x7=9.10
1270-910=360
2kg of apples - 3.60
360/2=180
What is the sum of angles in a triangle and circle
The sun of the 3 inside angles of a triangle = 180 degrees.
A circle = 360 degrees.
The sum of both would be 180 + 360 = 540 degrees.
Answer:
3 angles in a triangle add up to 180
And 360 in a circle
A ___________ is used to change from one unit to another.
A bag contains 5 milk and 13 dark chocolates.
A sweet is selected at random.
What is the probability of choosing:
P(milk)
=
P(not milk)
=
Answer:P(milk) 5/18 - 27% ----------- P(not milk) 13/18- 73%
Step-by-step explanation:
total chocolates in the bag= 18 (5 milk chocolates + 13 dark chocolates= 18 chocolates in total)
to find percentages divide numerator by denominator ( 5/18 = 27%) (13/18=73%)
P(milk) - 27% chance you will get milk chocolate
P(not milk) 73% chance you will get dark chocolate
It is more likey to get dark chocolate
David and Denise share n pears in the ratio 4:9. If n = 39 how many pears does David have?
Answer:
David has 12 pears.
Step-by-step explanation:
4 + 9 = 13
39 / 13 = 3
3 x 4 = 12
3 x 9 = 27
81x^4-1 factor with steps
Given:
The expression is
[tex]81x^4-1[/tex]
To find:
The factorized form of given expression.
Solution:
We have,
[tex]81x^4-1[/tex]
It can be rewritten as
[tex]=3^4x^4-1^2[/tex]
[tex]=(3x)^4-1^2[/tex] [tex][\because a^xb^x=(ab)^x][/tex]
[tex]=((3x)^2-1)((3x)^2+1)[/tex] [tex][\because a^2-b^2=(a-b)(a+b)][/tex]
[tex]=(3x+1)(3x-1)(3x+1)(3x-1)[/tex] [tex][\because a^2-b^2=(a-b)(a+b)][/tex]
This is the complete factorized form. It can also written as
[tex]=(3x+1)^2(3x-1)^2[/tex]
Therefore, the complete factorized form is [tex](3x+1)(3x-1)(3x+1)(3x-1)[/tex].
Solve for the variable.*
-a + 3a =10
A. {-9}
B. {5}
C. {-11}
D. {2}
Answer:
5
Step-by-step explanation:
-a+3a= 10
2a=10
a=10/2
a=5
can someone help me please?
Answer:
90.6
Step-by-step explanation:
89.7 + 92.6 + 83.9 + 96.2=
362.4
362.4 divided by 4 =
90.6
A 1-mile hiking path has signs placed every 240 feet. There are signs also placed at the beginning and end of the mile. How many signs are there?
Answer:
yep 22
Step-by-step explanation:
find the slope of the line through each pair of points (6, -10) , (-15 , 15)
[tex]\boxed{\boxed{\pink{\bf \leadsto The \ slope \ of \ the \ line \ is \ \dfrac{-25}{21}.}}}[/tex]
Step-by-step explanation:Two points are given to us and we need to find the slope of the line . The slope of the line passing through points [tex]\bf (x_1,y_1 ) \ \& \ (x_2,y_2) [/tex] is given by ,
[tex]\qquad\boxed{\red{\bf Slope = tan\theta=\dfrac{y_2-y_1}{x_2-x_1}}}[/tex]
Here , the points are ,
( 6 , -10 )( -15 , 15 )[tex]\bf\implies Slope = \dfrac{y_2-y_1}{x_2-x_1} \\\\\bf\implies Slope =\dfrac{15-(-10)}{-15-6} \\\\\bf\implies Slope = \dfrac{15+10}{-21}\\\\\bf\implies Slope =\dfrac{-1(25)}{-1(-21)}\\\\ \bf\implies\boxed{\red{\bf Slope =\dfrac{-25}{21}}}[/tex]
★ Hence the slope of the line joining the two points is -25/21 .What is the surface area of the box if its 5 1/2 by 3
Answer:
I think 30
Step-by-step explanation:
PLS CAN SOMEONE HELP ME
Answer:
w = -5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtract Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
8 = 4w + 53 + 5w
Step 2: Solve for w
Combine like terms: 8 = 9w + 53Isolate w term: -45 = 9wIsolate w: -5 = wRewrite: w = -5Step 3: Check
Plug in w into the original equation to verify it's a solution.
Substitute in w: 8 = 4(-5) + 53 + 5(-5)Multiply: 8 = -20 + 53 - 25Add: 8 = 33 - 25Subtract: 8 = 8Here we see that 8 does indeed equal 8.
∴ w = -5 is the solution to the equation.
The volume of a cube is increasing at a constant rate of 459 cubic inches per second. At the instant when the volume of the cube is 408 cubic inches, what is the rate of change of the surface area of the cube? Round your answer to three decimal places (if necessary).
Answer:
[tex]\frac{ds}{dt} =31.952[/tex]
Step-by-step explanation:
From the question we are told that
Cube increase rate 459 cubic inches
At 408
Generally the expressions of the is mathematically given to be
[tex]\frac{dv}{dt} =459[/tex]
[tex]\frac{dv}{dt} =3*l^2 \frac{dl}{dt}[/tex]
[tex]v=408[/tex]
Generally
[tex]v=l^3[/tex]
Therefore solving Mathematically
[tex]\frac{dv}{dt} =3*l^2 \frac{dl}{dt}[/tex]
[tex]459 =3*(7.416859539)^2 \frac{dl}{dt}[/tex]
[tex]459 =165.0294163\frac{dl}{dt}[/tex]
[tex]\frac{dl}{dt} =\frac{165.0294163}{459}[/tex]
[tex]\frac{dl}{dt} =0.359[/tex]
Therefore solving mathematically for surface area
[tex]Surface area S=6l^2[/tex]
[tex]\frac{ds}{dt} =6(2l* \frac{dl}{dt})[/tex]
[tex]\frac{ds}{dt} =12l* \frac{dl}{dt}[/tex]
[tex]\frac{ds}{dt} =12*(7.416859539)*0.359[/tex]
[tex]\frac{ds}{dt} =31.95183089[/tex]
[tex]\frac{ds}{dt} =31.952[/tex]
What is the y-intercept of y
- 2x + 6?
Choose 1 answers
(6,0)
B
(0,6
(-2,0)
(0, -2)
Answer:
(0,6)
Step-by-step explanation:
Joe has eaten 2/5 of a pizza.Jane has eaten 1/6 of a pizza how many more pizza has joe eaten than Jane?
Joe ate 7/30 more of pizza than Jane. You can just subtract 2 uneven denominators. So you would turn them into 30 because that’s the closest highest number that can go with 5 and 6. Then multiply 2 with 6 which is 12 and then multiply 1 with 5 which is 5 now you can subtract it. 12/30-5/30=7/30.
Final Result: 7/30
One student did an experiment of the rock cycle. The steps of the expirement are shown below what does the students experiment most likely demonstrate about the rock cycle
The given question is incomplete. The complete question is :
One student did an experiment on the rock cycle.
The steps of the experiment are shown below.
Collect five pieces of wax of different colors.
Use a plastic knife to scrape off thin shavings of the pieces of wax.
Pile the wax shavings of different colors one over the other.
Hold the pile of wax shavings in the palm and squeeze it for two to three minutes. Fold the pile and squeeze it in the palm again for a minute.
What does the student's experiment most likely demonstrate about the rock cycle?
a. Weathering can change igneous rocks into sediments.
b. Weathering can change metamorphic rocks into sediments.
c. Heat and pressure can change igneous rocks into metamorphic rocks.
d. Heat and pressure can change sedimentary rocks into metamorphic rocks.
Answer: Option D
Explanation: The rock cycle defines the conversion or transformation of igneous rock into sedimentary rocks and sedimentary rocks into metamorphic rocks. The conversion of rocks into these three forms is continuous.
The igneous rocks on weathering forms sediments which on cementation and compaction gets converted into sedimentary rocks. Then sedimentary rocks under tremendous heat and pressure gets converted into metamorphic rocks.
These processes takes millions of years to gets converted from one rock form to another.
Here, in the experiment wax shavings of different colors one upon another shows that they are sedimentary rocks and pressing it between palm or hand shows that heat and pressure is applied on it. This shows the conversion of sedimentary rocks into metamorphic rocks.
Colette loves to get manicures with her mom. In the past year, however, her mom has had 5 manicures for every 3 Colette has had. If Colette's mom has had 4 more manicures than Colette in the past year, how many manicures has Colette had?
Answer:
Collette had 6 manicures done last year.
Step-by-step explanation:
Since Collette's mom has 67% more manicures than Collette (2 more for every 3), and that difference represented 4 manicures in total, then:
let x be the number of manicures that Collette had during last year.
4 / x = 2/3
2x = 12
x = 6
6(15 + 12)
Rewrite that with distributive property for crown!!!
Answer:
90 + 72 -> 162
Step-by-step explanation:
15 times 6 equals 90 and 12 times 6 equals 72, the distributive property equation is 90 + 72 in which can be added to 162 as a result.
Hey there!
The formula is: a(b + c) = a(b) + a(c) = ab + ac
“6(15 + 12)”
6(15 + 12)
6(15) + 6(12)
6(15) = 90
6(12) = 72
NEW EQUATION: 90 + 72
ANSWER: 90 + 72 = 162 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Please help i forgot to post the image on the last one
Answer:
x y
0 2
2 6
4 10
6 14
I'll use the second one as the example.
First I found the x value because it was the value gaven to me, then I found the y value that lined up with it. Since the x value was 2, I had to go to the 2 on the x axis and went up until I got to the line, then I went horizontal until I hit the y axis and that's how I got 6 for the y value.
I hope this helped!!
Good morning can y’all help me???
Answer:
First one proportion. Next it is direct variation. Lastly it is proportion.
Step-by-step explanation:
I'll give u brainless if u do!
Answer:
9. 5×5×5= 125
10.2×2×2×2=16
11. 8×8= 64
12. 4×4×4×4=256
13. 6×6×6= 216
14. 1×1×1×1×1×1= 1
Write the equation in slope intercept form of a line that has a slope of 1/2 and passes through the point (-8,-4).