Answer:
x = -11
Step-by-step explanation:
1. Distribute 3 to the parenthesis and distribute 5 to the parenthesis
3x-12 = 5x + 10
2. Combine like terms (subtract 3x on both sides and then subtract 10 on both sides)
2x = -22
3. Divide both sides by 2
x = -11
please give me brainliest if this helped
Answer:
x=−11
Step-by-step explanation:
3(x-4)=5(x+2)
Simplify both sides of the equation:
3(x−4)=5(x+2)
(3)(x)+(3)(−4)=(5)(x)+(5)(2)(Distribute)
3x−12=5x+10
Subtract 5x from both sides
−2x−12=10
add 12 to both sides
−2x=22
Divide by -2 both sides
x=−11
Hope this helps.
Two trains begin in Milford and end in Pinkerton, which is 300 miles away. Train A leaves Milford at 10:00 a.m. and travels at a rate of 90 miles per hour. Train B leaves Milford at 8:00 a.m. and travels at 70 miles per hour. Which train(s) will arrive in Pinkerton before 1:00 p.m.?
A.
Train A
B.
Train B
C.
both Train A and Train B
D.
neither Train A nor Train B
Answer:
Train B
Step-by-step explanation:
because If you were to walk 300 miles that would be 6 hours or 5
Which graph does NOT represent y as a function of x?
I will give Brainlyest
Answer:
the first one is not a function :)
Answer this question here :))
Please help!! I need 1-6 answered!! I'll give brainliest!!
Step-by-step explanation:
constant = y / X = 11 /2k =2 / - 10 = - 1 / 5box C .... : where y / X = 1 6 ÷ 1/ 4 = 64y / X = 3/7 ÷ 3 =I / 7 So, y= 1/7 Xy/ X= 21 /6 = 7 / 2 so, y = 7 / 2 XBox BAnswer:11/2
-1/5
64
1/7x
7/2x
B
Step-by-step explanation:
11(n-3)=-44
for my friend again lolol help please
I will give the brainiest if u get the answer right
Answer:
9000 = 900 x 10 ^1
Step-by-step explanation:
What value of w makes the equation 145 = w + 27 true? I NEED THIS ASAP
Answer:
145 = w + 27
145 - 27 = 118
w = 118
Step-by-step explanation:
Use the subtraction method to solve problem like those!
Hope this helped!
Can someone please help
Answer:
Jar
Step-by-step explanation:
O.34 for bulk 0.33 for jar
Elena mixes 5 cups of apple juice with 2 cups of sparkling water to make sparkling apple juice. For a party, she wants to make 35 cups of sparkling apple juice. How much of each ingredient should Elena use?
Answer:
The answer is 25 cups of apple juice and 10 cups of sparkling water
Step-by-step explanation:
5+2=7, 35/7=5, so you must multiply each ingredient by 5
Answer:
175 cups of apple juice and 70 cups of sparkling juice
Step-by-step explanation:
Tyler ate x fruit snacks, and Han ate 3/4 less than that. Write an expression for the number of fruit snacks Han ate. You may use fractions or decimals in
Miguel and three of his friends went to the movies. They originally had a total of $40. Each boy had the same amount of money and spent $7.50 on a ticket. How much money did each boy have left after buying his ticket?
Write and solve an equation that represents the situation.
Answer:
$2.10
Step-by-step explanation:
$40 4 people $40 divided by 4 is $10 $10-$7.50 so they have $2.10 left each.
Answer:
8 dollars and 12 cent
Step-by-step explanation:
they all started with 10 dollars and in total spent 7.50 and ill leave you to do the rest of the math
It costs $3.45 to buy 3/4 ib of chopped walnuts. How much would it cost to purchase 7.5 ibs of walnuts?
Show your work!
Answer:
$3.45
Step-by-step explanation
$3.45 -> 3/4 lb ie (0.75 lb)
x -> 7.5 lb
therefore, x = 7.5 x 3.45/ 0.75
x = 34.5
it costs $3.45 for 7.5 lbs of walnut
$3.45
Step-by-step explanation$3.45 -> 3/4 lb ie (0.75 lb)
x -> 7.5 lb
therefore, x = 7.5 x 3.45/ 0.75
x = 34.5
it costs $3.45 for 7.5 lbs of walnut
Charlene has 2 flash drives of the same size that she uses to store pictures and videos. Each drive is holding the same number of GB of data, d. She wants to move everything to a memory card that can hold up to 8 GB
A) Charlene is going to delete 1 GB of data from each flash drive. How can the total amount of data left on the two flash drives be represented as an expression?
B) How can the expression you wrote be used to write an inequality that shows the maximum amount of data each flash drive can have on it in order to have all the data transfer to the 8 GB memory card?
867-5309
If you are a gunter dont respond to this
PLEASE HELP!!!!!!!
Which of the following functions represent exponential decay?
y = -2 x
y =(1/2)^ x
7 = 2^ 0.5x
y = 2^x
Answer: C) y=2^0.5x
Step-by-step explanation:
Trust me pls
Pamela rode her bike at a constant rate of 0.1 kilometer per minute. Which table represents y , the number of kilometers Pamela rode her bike in x minutes?
Answer:
B, The second table.
Step-by-step explanation:
If you rode a bike 0.1 Kilometers per minute, and you ride for 5 minutes, you would have biked 0.5 Kilometers, not 0.1 Kilometers.
Hope I helped! Please leave a rating and a comment! :)
Answer:
B
Step-by-step explanation:
you would multiply the y by 0.1 to get x and it would be the right rule.
help help help
pleaseeeee
question down below
Which of the following lists is in the correct order from smallest to largest?
0-19-14,5,11
0-7-3, 6,2
11, -12, 15, -19
-13.-19, -21, -24
Answer:
the last one -13 -19 -21 -24
Step-by-step explanation:
Answer
-13,-19,-21-24,11,-12,15,-19,0,19,14,5,11
Ankur estimated the quotient of 15 and one-third divided by (negative 4 and two-thirds) to be 3. Which best describes his error?
Ankur multiplied the compatible numbers 15 and –3.
Ankur found that the quotient of a positive number and a negative number is negative.
Ankur found that the quotient of a positive number and a negative number is positive.
Ankur added the compatible numbers 15 and –3.
Answer:
123/78
Step-by-step explanation:
Answer:
its C, Ankur found that the quotient of a positive number and a negative number is positive.
Step-by-step explanation:
i got it right on edge
pls explain whyy ill give u a brainlyest
Answer:
the answer should be c
Step-by-step explanation:
8x + 3 (3 - x) = 34
A. x = 5
B. x = 2
C. x = 8
D. x = 4
Answer:
A. x=5
Step-by-step explanation:
8x+3(3-x)=34
We move all terms to the left:
8x+3(3-x)-(34)=0
We add all the numbers together, and all the variables
8x+3(-1x+3)-34=0
We multiply parentheses
8x-3x+9-34=0
We add all the numbers together, and all the variables
5x-25=0
We move all terms containing x to the left, all other terms to the right
5x=25
x=25/5
x=5
I think this is correct.
Answer: its A; x=5
Step-by-step explanation:
8x+3(3-x)=34
distribute the 3 through the parentheses
8x+9-3x=34
then add the like terms
5x+9=34
subtract the 9 to the 34
you shoud get
5x=25
then divide the 5 on both sides and you get your answer of x=5
Two numbers have a sum of -15 and a
product of -100. What are the numbers?
Answer:
the numbers are -20 and 5
Step-by-step explanation:
The value of a = -20 and b = 5.
Let the numbers be a and b
a + b = -15 ...... i
a × b = -100 ....... ii
From equation i,
a = -15 - b ..... iii
Put equation iii into ii
a × b = -100
(-15 - b) × b = -100
-15b - b² = -100
-15b - b² + 100 = 0
b² + 15b - 100 = 0
b² + 20b - 5b - 100 = 0
b(b + 20) - 5(b + 20) = 0
b - 5 = 0
b = 0 + 5 = 5
a + b = -15
a + 5 = -15
a = -15 - 5
a = -20
Therefore, the value of a = -20 and b = 5.
Read related link on:
https://brainly.com/question/19876483
For what ordered pair (a,b) are there infinite solutions (x,y) to the system
4x + ay = -8,
2x + y = b.
Answer:
(2, -4)
Step-by-step explanation:
The second equation should be half of the first equation.
mmmmm i dont know how to do this
Answer:
See the answer below.
Step-by-step explanation:
The Pythagoras theorem for a right triangle is
c^2 = a^2 + b^2 where c = hypotenuse and a, b are the legs of the triangle.
3 positive integers which fit this formula are called Pythagorean Triples.
3,4 5 are a triple because 5^2 = 3^2 + 4^2 ( 25 = 9 + 16).
and also 17^2 = 15^2 + 8^2 ( 289 = 225 + 64).
Step-by-step explanation:
Pythagorean theorem is [tex]a^{2} + b^{2} =c^{2}[/tex] (c being the largest number)
Pythagorean triples are 3 positive numbers that make this equation true.
let's start with 3,4,5
3²+4²=5²
9+16=25
25=25
Since it's true, it's a triple.
Now 8,15,17
8²+15²=17²
64+225=289
289=289
This is also true, so it's also a triple
Hope this helps!
A bag of pennies weighs 5.1 kilogram. Each penny weighs 2.5 grams. About how many pennies are in the bag?
A. 20
B. 200
C. 2,000
D. 20,000
Answer:2K
Step-by-step explanation:since one kilogram is 1,000 grams and there 5.1 kL it’s 5,100 grams so about 2,000 pennies
Answer:
C, 2000
Step-by-step explanation:
First convert kilo grams into grams, there are 1000 grams in 1 kilogram, the prefix "kilo" means thousand. if you multiply 5.1 times 1000 you will get 5100 grams in the bag. Divide this by the weight of the penny, 2.5, to get 204. The question asks "About how many pennies are in the bag?" so we know to round to the closest answer being c.
WILL GIVE BRAINLIEST! PLEASE HELP! 7th grade math
Jenny surveyed 40 students at her school and found that 0.55 of the students she surveyed said their favorite class is math. Another 25% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?BRAINLIEST
12
22
30
32
Answer:
32 is answer
Step-by-step explanation:
How do i measure the diameter of a circle?
Answer:
Step-by-step explanation:
If you know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge. If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter
there’s 2 basic cases you’ll see to find the diameter (a line that basically cuts the circle in half)
you’ll either be given the radius (the distance between the center of the circle to any point on the circle) or the circumference (the perimeter of the circle)
so you have two equations:
diameter= 2*radius
circumference= diameter * pi
if they gave you the radius, simply multiply by 2 as the first equation states. if they give you the circumference, divide the circumference by pi (which is approx. 3.14)
Jeremy wants to borrow $100 from his brother. His brother agreed but
said he would add a 15% annual interest rate on. Jeremy will be able to pay him back in 10 months. How much interest will he have to pay his brother?
$12.50
$1.25
$125
$13
I think it's 12.50
Im not sure so sorry if im wrong but im 99% sure
can someone help me with this
Erica earn money by tutoring and babysitting. She always tutors for 5 hours each week and the amount she babysits changes from week to week. let x be the hours that arica babysitters. Write an expression to show the total numbers of hours erica works each week.
Numbers That you have to use to solve this problem: +,-, . , =, ( , ), x, 5, 8, 13
Answer: could u put it in a simpler way pls .....
Step-by-step explanation: