Answer:
What's the question????
Step-by-step explanation:
Answer:
that's niceeeee! what question are you talking about?
what is 5 + 9 = 2(4 − 7,5)
Answer:
5 + 9 = 2(4 - 7.5) = No
Step-by-step explanation:
Add: 5 + 9 = 14
Conversion a decimal number to a fraction: 7.5 = 75/
10
= 15/
2
a) Write down the decimal 7.5 divided by 1: 7.5 = 7.5/
1
b) Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.)
7.5/
1
= 75/
10
Note: 75/
10
is called a decimal fraction.
c) Simplify and reduce the fraction
75/
10
= 15 * 5/
2 * 5
= 15 * 5/
2 * 5
= 15/
2
Subtract: 4 - 7.5 = 4/
1
- 15/
2
= 4 · 2/
1 · 2
- 15/
2
= 8/
2
- 15/
2
= 8 - 15/
2
= -7/
2
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(1, 2) = 2. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 2 = 2. In the next intermediate step the fraction result cannot be further simplified by canceling.
In words - four minus fifteen halfs = minus seven halfs.
Multiple: 2 * the result of step No. 3 = 2 * (-7/
2
) = 2 · (-7)/
1 · 2
= -14/
2
= -7 · 2/
1 · 2
= -7
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(-14, 2) = 2.
In words - two multiplied by minus seven halfs = minus seven.
Compare: the result of step No. 1 vs the result of step No. 4 = 14 vs (-7) = No
Thank you...
Order the steps to solve -3x + 2.4 = 19.2
Answer:
X = -5.6
Step-by-step explanation:
This is a two step equation so you subtract 2.4 from both sides and then multiply 16.8 by -3 to get -5.6. HOPE THIS HELPS ! :)
Answer:
answer in picture
Step-by-step explanation:
Find the value of x so that the function has the given value.
r(x)=−45x+7; r(x)=−5
Answer:
x = 3
Step-by-step explanation:
j(x) = 4/5(-5) + 7
= -4 + 7
= 3
3) Nancy is 22 years older than her son Roger. In 8 years Nancy will be 3 times as old as Roger is in 2 years.
a) How old is Nancy now?
-5.2 - (-3.1) + 5.2 =
Answer:
the answer is 31/10
Step-by-step explanation:
la. There is 1/3 gallon of water in a 3-gallon container. What fraction of the container is filled write as a fraction
1/3 of a gallon divided by 3 gallons = 1/9
Answer:
1/3 is for 3 gallons is 1/9
Solve by using elimination. Express your answer as an Ordered pair (-x +2y=3 3x-2y=7
Answer:
(5,4)
Step-by-step explanation:
-x+2y=3
3x-2y=7
Add the like terms( 2y and -2y)(-x and 3x)(3 and 7) together. Do this vertically. 2y and -2y cancel eachother out.
2x=10Divide both sides by 2
x=5To find y, substitute x in for y in one of the equations
-5+2y=3add 5 to both sides
2y=8Divide both sides by 2
y=4Check:
-5+2(4)=33=3Vera went to the local salon to get a haircut. The cost was $24. Vera tipped the hair stylist 18%. What was the total cost of haircut including the tip? Round to the nearest cent.
=========================================================
Work Shown:
18% = 18/100 = 0.18
18% of 24 = 0.18*24 = 4.32
The tip is $4.32
Adding this tip amount onto the original bill leads to 4.32+24 = 28.32
-------------
As a slight shortcut, we can use the multiplier 1.18 to get
1.18*24 = 28.32
This works because
1.18*24 = (1+0.18)*24 = 1*24 + 0.18*24 = 24 + 0.18*24
Notice the portion "24 + 0.18*24" can be found buried in the 1.18*24 expression. I applied the distributive property.
The multiplier 1.18 represents an increase of 18%
We can think of it as
100% + 18% = 1+0.18 = 1.18
Describe and correct the error in writing the phrase as an expression?
Answer:
12 < x
Step-by-step explanation:
In writing 12 less than a number x, the expression, 12 - x is wrong because "less than" is not the same thing as "minus" (-). Rather, the sign, "<" should have been used as follows:
12 < x.
Pleaseeeeeeee helppp
someone do both of them for me
Answer:
2x > x
21x < 80
Step-by-step explanation:
Please mark as Brainliest!!!Look at the picture and tell me which one it is
Step-by-step explanation:
It's the seccond one, the first one doesnt go through the origin (0,0) while the second one does, making it unporportional
16- X = -2
Solve for x
Answer: x=18
Step-by-step explanation: 16-18=-2
Good luck! :)
Answer: -18
Step-by-step explanation: 16-x = -2
x = -16-2 [16 changes to -16 when transferred to RHS]
x = -18
Hope it helped u,
mark as the brainliest
^_^
8. Find the area of a circle with center
(2, 3) that passes through (2,7)
Use 3.14 for a
F 12.58 units H 41.38 units?
6 25.12 units? J 50.24 units
Pls help
Answer:
Area of circle = 50.24 units
Option J is correct answer.
Step-by-step explanation:
We need to find the area of a circle with centre (2, 3) that passes through (2,7)
The formula used to find area of circle is:
[tex]Area\: of\: circle=\pi \:r^2[/tex]
We need to find radius.
The radius can be found using the distance between points (2,3) and (2,7)
The The distance formula is: [tex]Distance = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Putting values and finding length
We have: [tex]x_1=2, y_1=3, x_2=2, y_2=7[/tex]
Putting values and finding distance
[tex]Distance = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\Distance = \sqrt{(2-2)^2+(7-3)^2}\\Distance = \sqrt{(0)^2+(4)^2}\\Distance = \sqrt{0+16}\\Distance = \sqrt{16}\\Distance = 4[/tex]
So, we found Distance = 4
Therefore, the radius of circle is 4
Now, finding area:
[tex]Area\: of\: circle=\pi \:r^2\\Area\: of\: circle=3.14\times (4) ^2\\Area\: of\: circle=3.14\times 16\\Area\: of\: circle=50.24 \:units[/tex]
So, Area of circle = 50.24 units
Option J is correct answer.
What is the solution to the equation 4+ 5 = 3-1t+5
O x = -1, x = 11
O x= -1
O x= 11
O no solution
Answer:
x = -1
Step-by-step explanation:
Solution :
4+5=3-1t+5
⇒t+1=0
⇒t= -1
Please help I’m having trouble solving this☹️
You need to find the WPM (words per minute) of each person.
Andre - 208 divided by 4 = 52
Noah - 342 divided by 6 = 57
You now know that Andre types 52 words per minute and Noah types 57 words per minute.
Answer: Noah types faster because he types 57 words per minute while Andre types 52 words per minute.
Answer:Noah types faster.
Step-by-step explanation: For Andre ,You do 208 divide 4 which gives you 52.For Noah, you do 342 divide by 6 which gives you 57.And since Noah type more words which is 57 while Andre type 52, that means Noah types faster.
Hope it helps.
This is the last question on my homework, whoever answers gets brainliest!
Answer: 0.7, 0.2, 0.1
Step-by-step explanation:
For this question, you have to convert each of the fractions into decimals.
You can directly convert 7/10 into a decimal, this is 0.7
You cannot directly convert 1/5 into a decimal, so you have to convert it into tenths first.
To do this, multiply the numerator and denominator by 2
1 x 2 = 2
5 x 2 = 10
2/10
Now you can convert 2/10 directly into a decimal, this is 0.2
And finally you can convert 1/10 into a decimal, this is 0.1
hope this helps :)
Answer:
Hi! The correct answer is 0.7, 0.2, 0.1!
Step-by-step explanation:
I answered this so you can give the other person brainliest! Have a nice day!
Suppose SAT Critical Reading scores are normally distributed with a mean of 501 and a standard deviation of 110. A university plans to admit students whose scores are in the top 30%. What is the minimum score required for admission
Answer:
The minimum score required for admission is 558.75.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Suppose SAT Critical Reading scores are normally distributed with a mean of 501 and a standard deviation of 110.
This means that [tex]\mu = 501, \sigma = 110[/tex]
A university plans to admit students whose scores are in the top 30%. What is the minimum score required for admission
This is the 100 - 30 = 70th percentile, which is X when Z has a pvalue of 0.7. So X when Z = 0.525. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]0.525 = \frac{X - 501}{110}[/tex]
[tex]X - 501 = 0.525*110[/tex]
[tex]X = 558.75[/tex]
The minimum score required for admission is 558.75.
Which expression is equivalent to x+0.2x?
A small hole in the wing of a space shuttle requires a 20.7 cmଶ patch. What is the patch’s area in square kilometers (kmଶ )? If the patching material costs NASA $3.25 inଶ ⁄ , what is the cost of the patch?
Answer:
look it up
Step-by-step explanation:
PLEASE ANSWER THIS AND IF YOU DO YOU GET
1. FOLLOW
2. BRAINLIEST
The 20% tip on a $37.35 meal
Answer:
7.47
Step-by-step explanation:
multiply by 2
divide by 10
cool trick to find out how much to tip
Answer:
$7.47
Step-by-step explanation:
Is this right?
I’m not sure in my answer
Answer:
Yeah that seems good. ghg
All items
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Q
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RA
5.
The domain of the function f(x) is the set of integers greater than-5. Choose all the following values that represent the elements of the range fx).
A f(-10)
B. (-2)
cf(-5)
D118
E (0)
Ff(-18)
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this is division help me
Divide decimals- A. 2.1 B. 0.42 C. 0.31
Divide whole numbers- A. 23 B. 42 C. 31
What is the area of the rectangle?
Answer:
12,180
Step-by-step explanation:
got
18. Bill has 2/3 of a gallon of juice left in the container. He pours out 2/9 for
his brother. Which expression will yield the amount of juice left in the
container?
Answer:
4/9 of a gallon.
Step-by-step explanation:
Given that Bill has 2/3 of a gallon of juice in his container, and he pours out 2/9 to his brother, to determine the expression that will yield the amount of juice left in the container, the following calculation must be performed:
2/3 - 2/9 = X
2/3 = 6/9
6/9 - 2/9 = X
4/9 = X
So after serving his brother juice, Bill has 4/9 of a gallon of juice left.
The diagonal of a square is 60 in, as shown
in the diagram. What is the length of a side
to the nearest tenth of an inch?
Answer:
The length of side is 42.4 inches.
Step-by-step explanation:
Given that:
Diagonal of square = 60 inches
As all sides of a square are equal, thus
Side of square = x
The diagonal will be the hypotenuse of a right angled triangle.
Using Pythagorean theorem;
[tex]x^2+x^2=(60)^2\\2x^2=3600\\x^2=\frac{3600}{2}\\x^2=1800[/tex]
Taking square root on both sides
[tex]\sqrt{x^2}=\sqrt{1800}\\x=42.4[/tex]
Hence,
The length of side is 42.4 inches.
Which of the following expressions represents the perimeter of the figure below?
3x - 2
2x - 8
5x - 10
5X-6
ОООО
10x - 12
10x - 20
Answer:
what does the figure look like?
i need a reference picture in order to answer
sorry :/
Dr. Jensen, a pediatrician, has 3 annual
checkups and 1 sick visit scheduled next
Tuesday, which will fill a total of 167
minutes on her schedule. Next Wednesday,
she has 1 annual checkup and 1 sick visit
on the schedule, which should take 75
minutes. How much time is allotted for
each type of appointment?
minutes for an
minutes for a
The time allotted is
annual checkup and
sick visit
Answer:
The time allotted is 46 minutes for an annual checkup and 29 minutes for a sick visit
Step-by-step explanation:
System of Equations
It's required to write and solve a system of equations to model the situation of Dr. Jensen. Let's call the following variables:
x = time allotted for annual checkups
y = time allotted for sick visit
Dr. Jensen has 3 annual checkups and 1 sick visit for a total of 167 minutes on her schedule, thus:
3x + y = 167 [1]
It's also given she has 1 annual checkup and 1 sick visit on her schedule for a total of 75 minutes, thus:
x + y = 75 [2]
We'll solve the system formed by equations [1] and [2] using the elimination method.
Subtract [1] and [2]:
3x - x = 167 - 75
2x = 92
Divide by 2:
x = 46
Substitute in [2]:
46 + y = 75
Subtract 46:
y = 75 - 46 = 29
y = 29
The time allotted is 46 minutes for an annual checkup and 29 minutes for a sick visit