Answer:
-6.1-(-3.13) is the equation that equals -2.97
Step-by-step explanation:
Answer:
2.97
Step-by-step explanation:
I had the question
Help me with this- 10 points
Answer:
The model on the top right.
Answer:
your answer would be the top right one
Step-by-step explanation:
I don't really know how to explain how I got my answer in words sorry.
Hope this helps! Have a great day ahead. Tell me if im wrong :) Stay Safe <3
The Phillips family and the Griffin family each used their sprinklers last summer. The water output rate for the Phillips family's sprinkler was 25L per hour. The water output rate for the Griffin family's sprinkler was 15L per hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output of 975L. How long was each sprinkler used
Last summer, both the Griffin family and the Phillips family used their sprinklers. 15 hours of use by Philips family,40 hours of use by Griffin family for each sprinklers.
Given that,
Last summer, both the Griffin family and the Phillips family used their sprinklers.
The sprinkler used by the Phillips family produced 25L of water every hour.
The Griffin family's sprinkler produced 15L of water per hour.
The households utilized their sprinklers for a total of 55 hours in total, producing 975L of water.
We have to find how long did you use each sprinkler.
Let us take
p be hours of use by Philips family
55-p be hours of use by Griffin family
Now, we get
25p+15(55-p)=975
25p+825-15p=975
10p=975-825
10p=150
p=150/10
p=15
55-p=55-15=40
Therefore, 15 hours of use by Philips family,40 hours of use by Griffin family.
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The difference between two whole numbers is 8. Twice the smaller number is 4 more than the larger number. What is the smaller number?
Answer: 12
Step-by-step explanation:
x - y = 8
2y = 4 + x
y = ?
x - y = 8
x = 8 + y
2y = 4 + x
2y = 4 + (8 + y)
2y = 12 + y
2y - y = 12
y = 12
The smallest number is 12.
Given that,
The difference between two whole numbers is 8. Twice the smaller number is 4 more than the larger number.Here we assume the larger number be x and smallest number be yBased on the above information, the calculation is as follows:
x - y = 8
2y = 4 + x
So,
x = 8 + y
Now
2y = 4 + (8 + y)
2y = 12 + y
2y - y = 12
y = 12
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Timothy and Juan are completing their homework and are having a debate about a linear equations question.Timothy said 2 + 6 (x-4) = 3x -18 + 3x has no solution, but Juan said he could prove a value existed that can be substituted for x to make it a true statement. Who is correct? Justify your reasoning. plz help i need this grade
Answer:
We're asked to solve this system of equations:
\begin{aligned} 2y+7x &= -5\\\\ 5y-7x &= 12 \end{aligned}
2y+7x
5y−7x
=−5
=12
We notice that the first equation has a 7x7x7, x term and the second equation has a -7x−7xminus, 7, x term. These terms will cancel if we add the equations together—that is, we'll eliminate the xxx terms:
\begin{aligned} 2y+\redD{7x} &= -5 \\ +~5y\redD{-7x}&=12\\ \hline\\ 7y+0 &=7 \end{aligned}
2y+7x
+ 5y−7x
7y+0
=−5
=12
=7
Solving for yyy, we get:
\begin{aligned} 7y+0 &=7\\\\ 7y &=7\\\\ y &=\goldD{1} \end{aligned}
7y+0
7y
y
=7
=7
=1
Plugging this value back into our first equation, we solve for the other variable:
\begin{aligned} 2y+7x &= -5\\\\ 2\cdot \goldD{1}+7x &= -5\\\\ 2+7x&=-5\\\\ 7x&=-7\\\\ x&=\blueD{-1} \end{aligned}
2y+7x
2⋅1+7x
2+7x
7x
x
=−5
=−5
=−5
=−7
=−1
The solution to the system is x=\blueD{-1}x=−1x, equals, start color #11accd, minus, 1, end color #11accd, y=\goldD{1}y=1y, equals, start color #e07d10, 1, end color #e07d10.
We can check our solution by plugging these values back into the original equations. Let's try the second equation:
\begin{aligned} 5y-7x &= 12\\\\ 5\cdot\goldD{1}-7(\blueD{-1}) &\stackrel ?= 12\\\\ 5+7 &= 12 \end{aligned}
5y−7x
5⋅1−7(−1)
5+7
=12
=
?
12
=12
Yes, the solution checks out.
If you feel uncertain why this process works, check out this intro video for an in-depth walkthrough.
Example 2
We're asked to solve this system of equations:
\begin{aligned} -9y+4x - 20&=0\\\\ -7y+16x-80&=0 \end{aligned}
−9y+4x−20
−7y+16x−80
=0
=0
We can multiply the first equation by -4−4minus, 4 to get an equivalent equation that has a \purpleD{-16x}−16xstart color #7854ab, minus, 16, x, end color #7854ab term. Our new (but equivalent!) system of equations looks like this:
\begin{aligned} 36y\purpleD{-16x}+80&=0\\\\ -7y+16x-80&=0 \end{aligned}
36y−16x+80
−7y+16x−80
=0
=0
Adding the equations to eliminate the xxx terms, we get:
\begin{aligned} 36y-\redD{16x} +80&=0 \\ {+}~-7y+\redD{16x}-80&=0\\ \hline\\ 29y+0 -0&=0 \end{aligned}
36y−16x+80
+ −7y+16x−80
29y+0−0
=0
=0
=0
Solving for yyy, we get:
\begin{aligned} 29y+0 -0&=0 \\\\ 29y&=0 \\\\ y&=\goldD 0 \end{aligned}
29y+0−0
29y
y
=0
=0
=0
Plugging this value back into our first equation, we solve for the other variable:
\begin{aligned} 36y-16x+80&=0\\\\ 36\cdot 0-16x+80&=0\\\\ -16x+80&=0\\\\ -16x&=-80\\\\ x&=\blueD{5} \end{aligned}
36y−16x+80
36⋅0−16x+80
−16x+80
−16x
x
=0
=0
=0
=−80
=5
The solution to the system is x=\blueD{5}x=5x, equals, start color #11accd, 5, end color #11accd, y=\goldD{0}y=0y, equals, start color #e07d10, 0, end color #e07d10.
Want to see another example of solving a complicated problem with the elimination method? Check out this video(Opens in a new window).
Step-by-step explanation:
d) parallel to y=2x and contains (-1,-2)
Answer:
y=2x+4 I HOPE THIS HELPS YA
Step-by-step explanation:
m=2
To find an equation that is parallel, the slopes must be equal. Find the parallel line using the point-slope formula.
Use the slope 2
and a given point (−1,2) to substitute for x1 and y1 in the point-slope form y−y1=m(x−x1), which is derived from the slope equation m=y2−y1x2−x1
.
y−(2)=2⋅(x−(−1))
Simplify the equation and keep it in point-slope form.
y−2=2⋅(x+1)
Solve for y
y=2x+4.
Can anyone help me ASAP!
Answer:
29 mi
Step-by-step explanation:
d=sqrt(21^2 + 20^2)
d=sqrt(441 +400)
d=sqrt(841)
d=29 mi
i need help plz plz plz
Step-by-step explanation:
The answer is
X=23
Hope it helpsss
Mateo plays on his school basketball team. From past history, he knows that his probability of making a basket on a free throw is 0.8. Suppose he wants to create a simulation using random numbers to estimate the probability of making at least 3 baskets on his next 5 free throw attempts. Which of the following assignments of the digits 0 to 9 could be used for the simulation?
A) Let the even digits represent making a basket and the odd digits represent not making a basket
B) Let the digits 0 and 1 represent making a basket and the digits from 2 to represent not making a basket.
C) Let the digits from 0 to 3 represent making a basket and the digits from 4 to 9 represent not making a basket
D) Let the digits from 0 to 6 represent making a basket and the digits from 7 to 9 represent not making a basket.
E) Let the digits from 0 to 7 represent making a basket and the digits 8 and 9 represent not making a basket.
Answer:
e
Step-by-step explanation:
A kilogram (kg) of bananas costs $2.40. A kilogram of apples costs $3.55. What is the price of 1 kilogram of bananas and 2 kilogram of apples?
Will NAME Brainliest!!
The price of 1 kilogram of bananas and 2 kilogram of apples is $9.5
What is addition?Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.
Given:
A kilogram (kg) of bananas costs $2.40.
A kilogram of apples costs $3.55.
So, the price of 2 kilograms of apples cost 2 x 3.55,
= $7.1
To find the price of 1 kilogram of bananas and 2 kilogram of apples:
Addition,
The price = 2.40 + 7.1
The price = $9.5
Therefore, the required price is $9.5.
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Given:
A
C
‾
⊥
B
D
‾
AC
⊥
BD
and
∠
A
≅
∠
C
.
∠A≅∠C.
Prove:
△
A
B
D
≅
△
C
B
D
△ABD≅△CBD.
Answer:
Step-by-step explanation:i solve is A△B=(A∪B)∖(B∩A)=(A∪B)∩(B∩A)c=(A∪B)∩(Bc∪Ac)=(B∪A)∩(Ac∪Bc)=(B∪A)∩(A∩B)c=(B∪A)∖(A∩B)=B△A
The triangles are congruent by SSS criteria
What is Congruence?In geometry, two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
Given here BD is common and AB=BC and since ∠A = ∠B also they share a common right angle therefore by default the other two remaining angles they must be equal by the angle sum property. Therefore opposite sides of a congruent angles must be equal.
Hence, by SSS property the triangles are Congruent.
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HELLLPPP
If you work for 4 hours and 20 minutes three days a week and twice a week you work 6 hours and 15 minutes how many hour a week do you work.
A.) 24 hours and 30 minutes
B.) 24 hour 30 minutes
C.)25 hours 30 minutes
D.) 24 hours
Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.
Answer:
D. Step 5Step-by-step explanation:
Andrew made a mistake at last step.
It should be:
-11.8 + 9.8 = 9.8 - 11.8 = -2 but not -21.655
% of
4400 can someone plz answer this question
Answer:
2420
Step-by-step explanation:
convert 55% to a decimal
55 / 100 = 0.55
0.55 x 4400 = 2420
z=-8+5i
find the angle Ф that z makes in the complex plane
NEED ANSWER ASAP!!!!!!!!!!
Find the slope from the following points:
(-9,3) (0,-7)
10/9
-10/9
-4/9
4/-9
Answer: -10/9
Step-by-step explanation:
Slope = (y2 - y1) / (x2 - x1)
= (-7 - 3) / (0 - (-9))
= (-7 - 3) / (0 + 9)
= -10 / 9
Carl has 16 rubber balls to share with his 2 brothers and 1 sister. if carl and his brothers and sister each get the same number rubber balls how many rubber balls will each them get?
Answer:
Each sibling Gets 4 rubber balls
Step-by-step explanation:
add up all the people
1+2+1 = 4
and since you need to split 16 evenly to 4 people just divide
16 divided by 4 = 4
Answer:4
Step-by-step explanation:
16÷4
How many x-intercepts does the parabola with the following
equation have?
y= -x^2-6x-17
Step-by-step explanation y= -x^2-6x-17
y+-(x+3)2_8
(2^-4)^-3 what is the answer to this math problem i really need help
Step-by-step explanation:
[tex] = { ({2}^{ - 4}) }^{ - 3} [/tex]
[tex] = {2}^{ - 4 \times ( - 3)} [/tex]
[tex] = {2}^{12} [/tex]
[tex] { ({2}^{ - 4}) }^{ - 3} = {2}^{12} [/tex]
Pls help me on number 12
Help me I need help!
Answer:
56°÷
Step-by-step explanation:
The sum of the central angles in a circle is 360°. That means unmarked angle RUS is ...
360° -111° -137° = 112°
Inscribed angle RTS is half the measure of central angle RUS, so ...
∠RTS = 112°/2 = 56°
Which of the following is the graph of the equation y=−x?
Answer:
The first image
Step-by-step explanation:
y=mx+b
The variable b represents the y-intercept, since there is no b in this equation, we know that the y intercept in 0.
The variable "mx" is represented in this equation as -(1)x. "mx" is slope.
What should be done first to evaluate the expression?
5 - 3 × (4 - 2)2 ÷ 5
(A) Subtract 2 from 4
(B) Subtract 3 from 5
(C) Multiply by 3
(D) Divide by 5
Answer:
A
Step-by-step explanation:
becuase you follow PEMDAS
what is 10% of $12.00
YES I WILL BE GIVING A BRAINLIST HURRY IM TIMED
Answer: they dont have the same numbers
Step-by-step explanation:
Answer:
Function A is 2
Function B is 5
Difference is -3
Step-by-step explanation:
The y intercept is the rate of change or the value of zero
Enter a linear equation that models the situation.
A drugstore sells pens for $1.50 each and notebooks for $4 each. The owner would like to sell $45 of these items each day. Use p for the number of pens and n for the number of notebooks.
A linear equation that models the situation is = 45.
Does anyone know how to solve this?
Formula: a^2+b^2= c^2
Answer:
x=45
Step-by-step explanation:
A = 2(x+1)^2
B=4x^2
C=5x-2^2
2x+2^2 = 4x+4
4x^2 = 16x
C= 5x-2^2 = 25x-4
4x+4+16x+25x-4=
20x+25x = 45x
4-4 = 0
It is very long and took brainpower not even sure if right but tried
A scale model of a rectangular living room is 6 3/4 inches by 5 1/2 inches. If 1 inch represents 3 feet of the actual room, find the area of the actual room.
The actual area of the room after unit conversion will be equal to 334 1/8 feet².
What is area?An object's area is how much space it takes up in two dimensions. It is the measurement of the number of unit squares that completely encompass the surface of a compact figure. The squared unit, which is frequently expressed as inches, square feet, etc., is the accepted unit of area.
As per the data mentioned in the question,
Let the length of the room, l = 6 3/4 inches = 27/4 inches
1 inch = 3 feet
27/4 inch = 81/4 feet
Let the width of the room, w = 5 1/2 inches = 11/2 inches
1 inch = 3 feet
11/2 inches = 33/2 feet
Now, use the formula of the area of the rectangle,
A = wl
A = 33/2 × 81/4
A = 2672/8 feet²
Or, it can be written in mixed fraction form as 334 1/8 feet².
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The triangle below is isosceles. Find the length of side xx to the nearest tenth.
Answer:
x = 2
Step-by-step explanation:
Since this is an isosceles triangle the unmarked side is also √2
Since this is also a right triangle use the pythagorean theorem to find x.
x² = (√2)² + (√2)²
x² = 2 + 2
x² = 4
x = 2
The value of x is 2.
What is Pythagoras theorem?The relationship between the three sides of a right-angled triangle is explained by the Pythagoras theorem, commonly known as the Pythagorean theorem. The Pythagoras theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.
Given:
H= x, P= √2, B= √2
Now, using Pythagoras theorem
H² = P² + B²
x² = (√2)² + (√2)²
x² = 2 + 2
x² = 4
x = 2
Hence, the value of x is 2.
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help asap help asap for brainlist
part A and Part B
Answer:
part A:
32.10
part B:
156 miles
Step-by-step explanation:
For A BRAINLST PLEASE HELP ASAP
Step-by-step explanation:
listen in class.
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