Add 37 to both sides
Step-by-step explanation:
Answer:
The first step is to add 37 to both sides of the equation. i.e. grouping like terms.
12x - 37 = 23
12x - 37 + 37 = 23 + 37
12x - 0 = 60
12x = 60
To go on from there, you divide both sides by 12, i.e. removing common factors:
12x = 60
12x ÷ 12 = 60 ÷ 12
x = 5
Please I really need help!!
(Solve using tape diagrams)
Serena's mom is planning her birthday party. She bought balloons, plates, and cups. Serena's mom bought twice as many plates as cups. The number of balloons Serena's mom
bought was half the number of cups. If Serena's mom bought 84 items, how many of each item did she buy?
Answer:
look at the picture
Step-by-step explanation:
the picture explains everything
what is the solution set to the inequality 2²-x≥6
Answer:
A is for apple
Step-by-step explanation:
abc
Stefan sells Jin a bicycle for $137 and a helmet for $17. The total cost for Jin is 140% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make bying the bicycle and helmet to Jin? Stefan originally spent $
Answer:
Stefan originally spent $110.
Stefan made a profit of $44.
Step-by-step explanation:
Given that:
Stefan sold the bike and helmet for $137 and $17
Total amount = 137+17 = $154
This is 140% of the price Stefan originally paid.
Let,
x be the original price paid by Stefan
140% of x = $154
[tex]\frac{140}{100}x=154\\1.4x = 154\\\frac{1.4x}{1.4}=\frac{154}{1.4}\\x=110[/tex]
Therefore,
Stefan originally paid $110 for the bicycle and helmet.
Profit made by Stefan = 154-110 = $44
Hence,
Stefan originally spent $110.
Stefan made a profit of $44.
Solve for x -2(4x-3)=30
X=-2
X=-3
X=-4
X=-6
Answer:
Step-by-step explanation:
x-2(4x-3)=30
x-8x+6=30
-7x=30-6
-7x=24
x=-24/7 maybe it is a mistake in the statement of the problem
Which description is paired with its correct expression?
Four less than the quotient of a number cubed and seven 4 - n3/7 + 3
Five times the difference of a number squared and six 5(6 - n2)
Nine more than the quotient of six and a number cubed decreased by 4 9 + n3/6 - 4
Twice the difference of nine and a number squared 2(9 - n2)
I think it’s D
Please help
Answer:
D.
Step-by-step explanation:
Hi there! You’re correct.
Twice the difference of nine and a number squared would look like
[tex]2(9-n^2)[/tex]
I hope this helped! :)
The value of 3x10 when x.- 2. can be
written
in simplest form as ab, where
and b =
Answer:
A=-8 and B=-2
Step-by-step explanation:
Suppose that 19 inches of wire costs 76 cents.
At the same rate, how many inches of wire can be bought for 52 cents?
Answer:
13 inches of wire can be bought for 52 cents.
Step-by-step explanation:
→ We can use proportion to solve:
[tex] \frac{19 \: inches}{76 \: cents} = \frac{x}{52 \: cents} \\ \\ \frac{76x}{76} = \frac{988}{76} \\ \\ x = 13[/tex]
When you flip a based coin the probability of getting a tail is 0.39. What's the probability of getting head
Answer:
0.61 or 61 %
Step-by-step explanation:
Answer:
0.61
Step-by-step explanation:
0.39 is also 39%, the highest probability is always 100% unless it says otherwise, so our equation is:
1 - 0.39 = 0.61
So the probability of getting a head is 0.61 or 61%
For a science experiment, Jack adds 1 tsp of salt to 3 tsp of water. Mika adds 4 tsp of salt to 9 tsp of water. Whose water is saltier?
The person whose water is saltier is Jack's water.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
Jack adds 1 tsp of salt to 3 tsp of water.
This means,
3 tsp of water = 1 tsp of salt
Divide both sides by 3.
1 tsp of water = 1/3 tsp of salt
1 tsp of water = 0.33 tsp of salt ____(1)
Mika adds 4 tsp of salt to 9 tsp of water.
9 tsp of water = 4 tsp of salt
Divide both sides by 9.
1 tsp of water = 4/9 tsp of salt
1 tsp of water = 0.0092 tsp of salt ____(2)
From (1) and (2) we see that,
Jack's water is saltier.
Thus,
Jack's water is saltier.
Learn more about unit rates here:
https://brainly.com/question/11258929
#SPJ2
Evaluate the expression you got in part d for b = 8.
Answer:
b/2-3
8/2-3(substituting B=8)
8/-1
-8
Step-by-step explanation:
eheh
Can you make a triangle with lengths 10,7,15
Answer:
yes
Step-by-step explanation:
Answer:
The formation of ∆ is possible .
Step-by-step explanation:
Three sides of triangle are given which are 10 , 7 & 15. And we need to determine whetherwecanmake a triangle with these three sides or not . So we know that ,
" Sum of any two sides of a triangle is Greater
than the third side "
Let ,
a = 10b = 7c = 15Here we will see by three cases. And the formation of triangle will be possible if and only of all the three cases are possible.
So , let's check ,
Case 1:-
→ a + b > c
→ 10 + 7 > 15
→ 17 > 15
Case 2:-
→ b + c > a
→ 7 + 15 > 10
→ 22 > 10
Case 3 :-
→ a + c > b
→ 10 + 15 > 7
→ 25 > 7
Since all the three cases are true Hence formation of ∆ is possible.
Hence the formation of triangle is possible .integration of dx/3sin^2 -4
Answer:
= 1/2 tan^(-1)(2 cot(x)) + constant
Step-by-step explanation:
Take the integral:
integral1/(3 sin^2(x) - 4) dx
Multiply numerator and denominator of 1/(3 sin^2(x) - 4) by -sec^2(x):
= integral-(sec^2(x))/(4 sec^2(x) - 3 tan^2(x)) dx
Prepare to substitute u = tan(x). Rewrite -(sec^2(x))/(4 sec^2(x) - 3 tan^2(x)) using sec^2(x) = tan^2(x) + 1:
= integral-(sec^2(x))/(tan^2(x) + 4) dx
For the integrand -(sec^2(x))/(tan^2(x) + 4), substitute u = tan(x) and du = sec^2(x) dx:
= integral-1/(u^2 + 4) du
Factor out constants:
= - integral1/(u^2 + 4) du
Factor 4 from the denominator:
= - integral1/(4 (u^2/4 + 1)) du
Factor out constants:
= -1/4 integral1/(u^2/4 + 1) du
For the integrand 1/(u^2/4 + 1), substitute s = u/2 and ds = 1/2 du:
= -1/2 integral1/(s^2 + 1) ds
The integral of 1/(s^2 + 1) is tan^(-1)(s):
= -1/2 tan^(-1)(s) + constant
Substitute back for s = u/2:
= -1/2 tan^(-1)(u/2) + constant
Substitute back for u = tan(x):
= -1/2 tan^(-1)(tan(x)/2) + constant
Which is equivalent for restricted x values to:
Answer: = 1/2 tan^(-1)(2 cot(x)) + constant
The total cost of 3 bags of chips and 4 jars of salsa at a
store is $11.25. The cost of each bag of chips is $2.75.
Write an equation that can be used to determine the cost
,
X, of 1 jar of salsa.
Answer: 2.75(3) + 4x = 11.25
Step-by-step explanation:
It says each bag costs $2.75 and there are 3 bags so multiply those 2 and then subtract them from the total cost (11). What you get after you subtract is the total costs of the salsa so divide that by 4 to get the cost of each, in this case it doesn't ask so we leave it as 4x.
£60 in the ratio 4:5:1
Step-by-step explanation:
let 4x
6x
and x be the ratio
now
6x+4x+x=60
10x=60
x=60/10
x=6
again
6x
6×6
36
4x
4×624
and
x=6
2. (04.01 LC)
Marneshia walked 3/8 of a mile in 3/5 of an hour. What equation can be used to calculate her unit rate in miles per hour? (1 point)
1). 3/8
3/5. = 5/8 mile per hour
2). 3/8
3/5 = 1 3/5 miles per hour
3). 3/5
3/8=1 3/5 miles per hour
4). 3/5
3/8 = 5/8mile per hour
Answer:
Step-by-step explanation:
Using D / T = R, we have
(3/8)miles / (3/5) hrs =
3/8 x 5/3 =
5/8 mph
Students are measuring the mass of an object in Science class. The mass is 38 grams. Danielle measured the mass at 40 grams. What was her percent error?
Answer:
5.26%
Step-by-step explanation:
Danielle measured the the mass at 40grams. ,Compared to 38 grams, there is a percentage increase.
Old Value = 38grams, New Value = 40grams
%Increase = 40-38/38 × 100%
%Increase = 5.26%
. Sara teaches aerobics classes as a part-time job. The amount of money she earned is shown in the table below. Based on the information in the table, how much money will Sara earn after teaching 18 aerobics classes?
Answer:
She should earn 225 dollars.
Step-by-step explanation:
I know this because 50 ÷ 4 = 12.5 and 12.5 × 18 = 225.
Someone answer this plzz Simplify 9^-3
Answer:
0.00137
Step-by-step explanation:
Answer:
Find the GCD (or HCF) of numerator and denominator. GCD of 9 and 3 is 3.
9 ÷ 33 ÷ 3.
Reduced fraction: 31. Therefore, 9/3 simplified to lowest terms is 3/1
Step-by-step explanation:
Find the GCD (or HCF) of numerator and denominator. GCD of 9 and 3 is 3.
9 ÷ 33 ÷ 3.
Reduced fraction: 31. Therefore, 9/3 simplified to lowest terms is 3//
I need help anyone got answer
two trucks leave a factory at the same time. one travels east 60 miles per hour, and the other travels west at the 39 miles per hour. in how many hours will they be 150 miles apart?
9514 1404 393
Answer:
1 17/33 hours, about 1.52 hours
Step-by-step explanation:
The distance between the trucks is increasing at the rate of 60+39 = 99 miles each hour. Then the time to get to a separation distance of 150 miles is ...
(150 mi)/(99 mi/h) = (150/99) h = 1 17/33 h
The trucks will be 150 miles apart after ...
1 17/33 hours, about 1 hour 30 min 55 seconds.
I give Brainliest please help! the last answer got cut off so the last one it's Quadrant IV
Answer:
C: Quadrant III
Step-by-step explanation:
Have a good day. Their is your answer :D.
Simplify 6/6^1/4 rational exponents
Answer:
we conclude that:
[tex]\frac{6}{6^{\frac{1}{4}}}=6^{\frac{3}{4}}[/tex]
Step-by-step explanation:
Given
The expression is
[tex]\frac{6}{6^{\frac{1}{4}}}[/tex]To determine
Simplify the expression
Simplifying the expression
[tex]\frac{6}{6^{\frac{1}{4}}}[/tex]
Apply the exponent rule: [tex]\frac{x^a}{x^b}=x^{a-b}[/tex]
[tex]\frac{6}{6^{\frac{1}{4}}}=6^{1-\frac{1}{4}}[/tex]
Subtract the numbers: [tex]1-\frac{1}{4}=\frac{3}{4}[/tex]
[tex]=6^{\frac{3}{4}}[/tex]
Therefore, we conclude that:
[tex]\frac{6}{6^{\frac{1}{4}}}=6^{\frac{3}{4}}[/tex]
Clarissa is 14 years old, her brother Luis is 4 years more than half her age. Write a numerical expression that can be used to find Luis’s age. Do not use an equal sign in the expression or find Luis’s age.
Answer:
he's 11
Step-by-step explanation:
Answer:
14
8 PLUS 4 IS 12
Step-by-step explanation:
45k=84
k
Help me please !
Answer:
k = 1.87
Step-by-step explanation:
Given that,
An expression 45k = 84
We need to find the value of k.
It can be calculated as follows :
Divide both sides by 45,
[tex]\dfrac{45k}{45} = \dfrac{84}{45}\\\\k=1.87[/tex]
So, the value of k is equal to 1.87.
Pls help on 1,2,3 I’m so confused
Answer:
1 4 2
Step-by-step explanation:
Answer:
the answer is
1
4
2
Step-by-step explanation:
The answer above
i need more characters for some reason
Put y’all life down below now
Answer:
I don't have a life.....
Answer:
I am an Undertale trash. so this is my life.
Step-by-step explanation:
Help plz:)))I’ll mark u Brainliest
Answer:
9/5, since it says ratio, you don't change it into a mixed number
Step-by-step explanation:
18/10= 9/5
Who do you think Tim Spicer is
Answer: your mom
Step-by-step explanation:
Answer:
Timothy Simon Spicer was born in 1952. He is a retired British Army officer and was once a chief executive officer of the private security company Aegis Defence Services. He is a veteran of the Falklands War and also toiled with the British Army within the borders of Northern Ireland.
Step-by-step explanation:
hope this helps :)
The number of contaminating particles on a silicon wafer prior to a certain rinsing process was determined for each wafer in a sample of size 100, resulting in the following frequencies: Number of particles 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Frequency 1 2 3 12 11 15 18 10 12 4 5 3 1 2 1 a. What proportion of the sampled wafers had at least one particle
) What proportion of the sampled wafers had at least one particle? At least five particles? (Round your answers to two decimal places.)
Answer:
0.99
0.71
Step-by-step explanation:
The total number of frequency is 100 when added together
A.
The proportion with at least one particle.
Here we are to get :
Total frequency - (frequency of cases whose particles are 0.)
= 100-1
= 99
99/100
= 0.99
B.
At least 5 particles:
Total number of frequency - (cases that have frequencies with 4 or less particles)
= 100 - (12+11+3+2+1)
= 100 - 29
= 71
71/100
= 0.71
Identify the terms and like terms in each expression ASAP
Answer:thx for th e fre points
Step-by-step explanation:
b and the answer would be -200z
