Answer:
-7
Step-by-step explanation:
Answer: x = 7.5
Step-by-step explanation:
first, i moved the constant to the right.
-3x = 16 + 6
then, i added the 16 and the 6.
-3x = 22
then, i divided both sides.
it answers out to x = -22/3, but, when made into n improper fraction, results as -7.5
Please solve
70= -2.5x
Answer:
72.5
Step-by-step explanation:
70=-2.5x
+2.5 +2.5
x =72.5
Answer:
-28 for x
Step-by-step explanation:
the equation is supposed to be multiplied but you have to find x first so i think you have to divide 70 and -2.5 to find x then check your work by multiplying -2.5 and the answer which is -28 to get 70.
what is the HCF of 6m³
Tell me a please is a time limit on this
Answer:
A
Step-by-step explanation:
(4+5)7=9*7=63
Answer:
its A
Step-by-step explanation:
4 pages in the morning and u have 7 days in a week so you do 4x7=28
5 pages eveaning same thing 5x7=33
35+28=63 letter A
(GIVING BRAINLIEST!!!!!!!!!!!)
How did the U.S. Constitution make sure the government had enough power to act, but also protect the people's rights?
A) Created a legislative branch
B) Elected delegates from all states
C) Divided the power of the government into three branches
D) Gave the president full power over the national and state governments
U.S. Constitution makes sure people have enough power to act by electing delegates from all states.
What type of government does the U.S. have?The United States can be classified as a democratic country, which means citizens are the ones who make important political decisions. In the United States, this is possible by choosing representatives.
How is this system supported in the constitution?The most important points that support democracy are:
People had the right to choose representatives by voting.These representatives chosen by the people should always represent the interests of citizens.Representatives of all states are included to make sure everyone is represented.Learn more about democracy in: https://brainly.com/question/857277
Answer: is it A B C or D
Step-by-step explanation:
TELL ME
Arianna takes a sheet of paper and makes a diagonal cut from one corner to the opposite corner, making two triangles. The cut she makes is 15 inches long and the width of the paper is 12 inches. What is the paper's length?
Answer:
9
Step-by-step explanation:
The length of the paper , x, can be obtained using Pythagoras :
Width = 12 ; length = 15
x² = 15² - 12²
x² = 225 - 144
x² = 81
x = sqrt(81)
x = 9
Hence, length of the paper = 9 inches
6) We ordered music CDs. Ted ordered 5 rock CDs and 4 hip hop CDs for a total of $120. From the same site, Betty ordered 3 rock CDs and 5 hip hop CDs for a total of $98.
a) Write the system of 2 linear equations.
b) How much did each rock CD cost if each rock CD was the same price?
c) How much did each hip hop CD cost if each hip hop CD was the same price?
-show work-
A) 5x + 4y = 120
3x + 5y = 98
B) To solve this, we must solve the equation.
5x + 4y = 120
3x + 5y = 98
STEP ONE:
Divide
x + 4/5y = 24
STEP TWO:
Substitute the variable
x = 24 - 4/5y
STEP THREE:
Substitute the value of the variable
3(24 - 4/5y) + 5y = 98
STEP FOUR:
Multiply
72 - 12/5y + 5y = 98
STEP FIVE:
Subtract 72 from both sides
-12/5y + 5y = 26
STEP SIX:
Add
Turn 5y into 25/5y
-12/5y + 25/5y = 26
13/5y = 26
2.6y = 26
STEP SIX:
Divide 2.6 from both sides
26/2.6 = 10
y = 10
Each Hip-Hop CD Costs $10
(We will save this for later, because the question asked about rock CDs.)
STEP SEVEN:
Find x
x = 24 - 4/5(10)
4/5 = 0.8
0.8(10) = 8
x = 24 - 8
x = 16
Therefore, each Rock CD costed $16.
C) We found this earlier, each Hip-Hop CD costs $10.
Sorry this was a little lengthy, but I hope this helped!
if A={1,2,3,4,5},AnB={3,4,5}and sub={1,2,3,4,5,6},find the set B
Answer:
[tex]B = \{3,4,5,6\}[/tex]
Step-by-step explanation:
Given
[tex]A = \{1,2,3,4,5\}[/tex]
[tex]A\ n\ B = \{3,4,5\}[/tex]
[tex]A\ u\ B = \{1,2,3,4,5,6\}[/tex]
Required
Find set B
[tex]A\ n\ B = \{3,4,5\}[/tex] means that the common elements in A and B are 3, 4 and 5.
This implies that:
A subset of B are:
[tex]x = \{3,4,5\}[/tex]
And it also means that [tex]\{1,2\}[/tex] are not elements of B.
The remaining elements (y) of B are then calculated as follows:
[tex]y = (A\ u\ B) - (\{1,2\}\ u\ x)[/tex]
This gives:
[tex]y = \{1,2,3,4,5,6\} - (\{1,2\} u \{3,4,5\})[/tex]
[tex]y = \{1,2,3,4,5,6\} - \{1,2,3,4,5\}[/tex]
Remove common elements
[tex]y = \{6\}[/tex]
Hence, the set B is:
[tex]B = \{\{x\},\{y\}\}[/tex]
[tex]B = \{3,4,5,6\}[/tex]
Need help ASAP!!! I'll give brainliest the the correct answer!!!
A.) BA ≅ BC
B.) AB ≅ AC
C.) CA ≅ CB
D.) No congruent sides
Answer:
A
Step-by-step explanation:
<A = 57
What is the 20 rounded to the nearest
tenth? Use a calculator. help
Answer:
4.5
Step-by-step explanation:
4.5
[tex]\sqrt{20}[/tex] = 4.47213595
To round to the nearest tenth is where the 4 is after the decimal
Since 7 is higher than 5 then make the 4 convert into a 5
* Four or less, let it rest, 5 or more, let it sore.
Hope this helped!
the answer is 4.5
Step-by-step explanation:
because when you find the square root of 20, u get 4.472 approximately so find the nearest tenth
x−6y=19 solve for y.
Answer: y= - 19/6+x/6
Step-by-step explanation: maybe
What are some of the different parts of a cell?
Joe jumps into the water, and it takes him 5 seconds to reach the bottom of a pool 8 feet deep.
What is Joe’s rate of descent in feet per second?
Answer:
hm looks like the equation is 5/8
Step-by-step explanation:
i think its 5/8th of a second right????????
1 question for brain list :)
Describe the life cycle of a sea horse. What is unique about the sea horse's life cycle?
The female's have intercourse with the male's in a way that I can't describe on this website, and thus, the males give birth to the babies.
Mr.Steiner needs to purchase 60
Answer: It would be less expensive for Mr. Steiner to purchase the batteries in 12-packs.
Step-by-step explanation:
ii. The difference between the costs of one battery from each pack is $0.02 or 2 cents.
Step-by-step explanation:
A way to respond to these questions is as follows:
To purchase 60 AA batteries, we have to:
Buy 3 20-pack of AA batteries (since 3 * 20-pack = 60 batteries), or
Buy 5 12-pack of AA batteries (since 5 * 12-pack = 60 batteries).
We also know that a 20-pack costs $12.49 and a 12-pack costs $7.20.
Part 1: Which package is less expensive?
Case 1: How much does it cost 3 20-pack of AA batteries?
Three packages cost: 3 * $12.49 = $37.47
Case 2: How much does it cost 5 12-pack of AA batteries?
Five packages cost: 5 * $7.20 = $36.00
Then, it is less expensive for Mr. Steiner to purchase 5 12-packs batteries (which cost $36) than 3 20-packs batteries (which cost $37.47).
Part 2: Difference between the costs of one battery from each pack
The question we need to answer here is, how much does it cost one battery from each pack?
For this, we need to divide the total costs that we obtained in Part 1 by the total of batteries to be purchased, that is, 60.
Then, for Case 1, the cost of one battery for this purchase is:
[tex]\frac{37.47}{60battery} = \frac{0.62}{battery}[/tex] or 62 cents per battery.
For Case 2, the cost of one battery for this purchase is:
[tex]\frac{36.00}{60battery} =\frac{0.60}{battery}[/tex] or 60 cents per battery.
So, the difference between the costs of one battery from each pack is:
62 cents per battery - 60 cents per battery = 2 cents per battery.
Then, one battery from the 12-pack is less expensive than one battery from the 20-pack in 2 cents.
You can mark it as brainliest if you want.
What is the missing length of side b and A?
Answer:
b=42 ( base angles are equal)
a=24
then taking a as refrence angle
tan24=p/b
tan24=a/42
a= -89.66( but length cant be negative so )
a=89.66
Rewrite the subtraction problem as an addition expression using the additive inverse. -9.7 - (-18,6)
Answer:
-9.7 + 18.6
Step-by-step explanation:
Given the expression:
-9.7 - (-18,6)
The additive inverse of -18.6 is 18.6
The product of teo negative sign will also give a positive sign, hence:
-9.7 - (-18,6) = -9.7 + 18,6
-9.7 + 18,6 = 18.6 - 9.7
18.6 - 9.7 = 8.9
Hence the expression can also be written as -9.7 + 18.6 with 8.9 being the solution
Maria and laurie are making orange juice.Maria use 2 cups of concentrate and 5 cups of water. Laurie uses 3 cups of concentrate and 7 cups of water . Whose mix would be the strongest? Why?
Answer:
Step-by-step explanation:
To obtain the strongest mix :
Maria:
2 cups of concentrate ; 5 cups of water
Ratio = 2/5 = 0.4 concentrate per 1 cup of water
Laurie:
3 cups of concentrate ; 7 cups of water
Ratio = 3/7 = 0.4285714 concentrate per 1 cup of water
0.4285714 > 0.4
Hence, Laurie's mix is the strongest as it has higher concentrate per cup of water.
22÷34=? what is answer
Answer:
0.64705882352
when u round it, it will be
0.65
can i have brainliest, please, i really need it
stay safe from the virus
Step-by-step explanation:
Does anyone know what to do on this by chance?
Answer:
try this
Step-by-step explanation:
90/450=160/vt
so 90 multiplies vt and 450 multiplies 160 as a cross multiplication
and jus slove it ull get ur ans
Gabby baby sat 2 hours each night for 20 nights. She earned a total of $360 babysitting. Gabby wants to calculate her hourly rate. How much did Gabby earn per hour babysitting?
Answer:
$9 per hour
Step-by-step explanation:
First, divide her total by 20 to find how much she got per night:
360/20
= 18
Then, divide this by 2 to find her hourly rate, since she worked 2 hours a night:
18/2
= 9
So, Gabby earned $9 per hour babysitting
Answer: $9
Step-by-step explanation:
2 × 20 = 40 [total running time]
360 ÷ 40 = 9 [Gabby earns per hour babysitting]
-3(2.5+k) + 0.5(7+8k)
-3 (2.5 + k) + 0.5 (7 + 8k)
Apply distributive property.
-7.5 - 3k + 3.5 + 4k
Add like terms.
-4 + k
k - 4
k - 4 is your answer. I hope this helps you! Let me know if I got anything wrong.
Answer: if you are simplifying it the answer is k-4
Step-by-step explanation:
Please help meeeeeee
Answer:
I think it is -5,-5
Step-by-step explanation:
because it started at negative 5 qurdent two and it ends at in qurdent four at -5
Find x please so difficult
Answer:
120 degrees
Step-by-step explanation:
Attached is a screenshot.
y = 180 - 50 - 70 = 60.
x + y = 180, so x = 120
Remember to try to use parallel lines when you can
The second uses the same method, just the opposite side.
plssss help meeeeeeee plssss
what is the answer for 24-9/12
What is the value of n in this equation? Enter your answer in the box. (2.4 × 103) × (3 × 10n) = 7.2 × 109
Answer:
Solving the equation [tex](2.4 \times 103) \times (3 \times 10n) = 7.2 \times 109[/tex] we get [tex]\mathbf{n=0.10582}[/tex]
Step-by-step explanation:
We need to find the value of n in the given equation
[tex](2.4 \times 103) \times (3 \times 10n) = 7.2 \times 109[/tex]
The equation can be simplified by using multiplication and division rules.
The first step is to solve brackets.
[tex](2.4 \times 103) \times (3 \times 10n) = 7.2 \times 109\\247.2 \times 30n=784.8[/tex]
Then, Divide both sides by 247.2
[tex]30n=\frac{784.8}{247.2}\\30n=3.1746[/tex]
Now, divide both sides by 30
[tex]n=\frac{3.1746}{30} \\n=0.10582[/tex]
We get the value of n: n=0.10582
So, solving the equation [tex](2.4 \times 103) \times (3 \times 10n) = 7.2 \times 109[/tex] we get [tex]\mathbf{n=0.10582}[/tex]
Find the slope of the line that passes through A(0, -5) and B(3,-4)
Answer:
1/3
Step-by-step explanation:
(-4-(-5))/(3-0) = 1/3
Triangle X Y Z is shown. The length of X Y is 9, the length of Y Z is 19, and the length of X Z is y. Angle X Y Z is 41 degrees. Law of cosines: a2 = b2 + c2 – 2bccos(A) Which equation correctly uses the law of cosines to solve for y? 92 = y2 + 192 – 2(y)(19)cos(41°) y2 = 92 + 192 – 2(y)(19)cos(41°) 92 = y2 + 192 – 2(9)(19)cos(41°) y2 = 92 + 192 – 2(9)(19)cos(41°)
Answer:
y² = 9² + 19² - 2(9)(19)Cos (41°)
Step-by-step explanation:
Triangle X Y Z is shown.
The length of X Y is 9,
the length of Y Z is 19, and the length of X Z is y. Angle X Y Z is 41 degrees.
Law of cosines is given as:a²= b² + c² – 2bccos(A)
Applying this to Triangle XYZ, and since we are Solving for y
y² = x² + z² - 2xzCos Y
The length of X Y = x is 9,
the length of Y Z = y is 19
y²= 9² + 19² - 2(9 × 19)Cos (41°)
= y² = 9² + 19² - 2(9)(19)Cos (41°)
Option d is correct
Answer:
Choice D is correct
Step-by-step explanation:
Just took the test
To rent a machine for 6 hours, it costs $27. How much will it cost to rent it
for 3 hours?
Answer:
$18.5
Step-by-step explanation:
6 divided by 3 = 2
27 divided by 2 = 18.5
60-10x = when x= 0 pls answer
Answer:
Add '-10x' to each side of the equation.
60 + -10x = 10x + -10x
Combine like terms: 10x + -10x = 0
60 + -10x = 0
Add '-60' to each side of the equation.
60 + -60 + -10x = 0 + -60
Combine like terms: 60 + -60 = 0
0 + -10x = 0 + -60
-10x = 0 + -60
Combine like terms: 0 + -60 = -60
-10x = -60
Divide each side by '-10'.
x = 6
Simplifying
x = 6