Answer:
16
Step-by-step explanation:
Select the expression equivalent to 4(– 7) + 8.
Answer:
-20
Step-by-step explanation:
According to order of operations, multiplication comes before addition.
4(– 7) + 8 =
-28 + 8 =
-20
An expression equivalent to 4(– 7) + 8 would be:
8 + 4(-7)
This is true because of the commutative property which states that a+b=b+a
Answer:
-20
Step-by-step explanation:
It is very simple!
4x-7= -28
-28+8=20
solve for x 1/5(x-4)=-2
the answer is:
x = -6
Cameron is 5 ft tall and casts a 12 ft shadow. At the same time of day, a nearby
building casts a 78 ft shadow. How tall is the building? Hint: Make a sketch and label all
measurements first.
Answer:
the building would be 32.5 feet tall.
Step-by-step explanation:
Which of the following statements are correct?
Select all that apply.
Triangle ABC is congruent to triangle DEF.
Triangle DEF is congruent to triangle GHI.
Triangle ABC is congruent to triangle GHI.
All three triangles are congruent.
Answer:B. Triangle DEF is congruent to triangle GHI.
Step-by-step explanation:
took instruction assignment on edge2021
Answer: B. or option 2. Triangle DEF is congruent to triangle GHI.
Step-by-step explanation:
The answer was correct on Edge 2022 instruction assignment. Trust me I got it right the proof is down below. Best of luck. :)
A Chrome book is on sale for 30 % off the original price plus
10% sales tax. If the Chrome book originally price is $360.
What is the final sale price that you will pay for the Chrome
book?
Answer:
288
Step-by-step explanation:
because 20 percent off is 252 and adding the sales tax which is 36 so you get 288
A circle has a radius of 4 in. What is the circumference of the circle? it is not 25.13 inches.
Answer:
Radius: 1.128 Area: 4
Hope this helps :)
Jamie drank 4 times as much juice as Brodie. Jamie drank 280 milliliters of juice.How much did Brodie drink ?
Answer:
Brodie drank 70 milliliters
Step-by-step explanation:
280 divided by 4 equals 70
To check: 70 x 4 = 280
Hence, the Brodie drink [tex]280[/tex] milliliters.
What is the simplification?
Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
Here given that,
Jamie drank four times as much juice as Brodie. Jamie drank [tex]280[/tex]milliliters of juice.
So,
[tex]\frac{280}{4}=70[/tex] millilitres
And, Jamie drank four times as much juice as Brodie
[tex]70[/tex] x [tex]4[/tex] = [tex]280[/tex]
Hence, the Brodie drink [tex]280[/tex] milliliters.
To know more about the simplification
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Simplify the expression. - 2.6f + 0.45 - 16 - 8 - 2.6f + 0.45 - 16 - 8 =
I need it for an assignment an it's due today can anyone help me please?
Answer:
-5.2f - 47.1
Step-by-step explanation:
It's easiest if you put all the like terms and numbers together and solve from there.
-2.6f - 2.6f + 0.45 + 0.45 - 16 - 16 - 8 -8
-5.2f + 0.9 - 32 - 16
-5.2f - 47.1
What single percentage change is equivalent to a 18% increase followed by a 13% decrease?
Given:
18% increase followed by a 13% decrease.
To find:
The single percentage equivalent to a 18% increase followed by a 13% decrease.
Solution:
Let a number be 100.
If it is increased by 18% then the number becomes
[tex]Number=100+\dfrac{18}{100}\times 100[/tex]
[tex]=100+18[/tex]
[tex]=118[/tex]
Then, it is decreased by 13%.
[tex]Number=118-\dfrac{13}{100}\times 118[/tex]
[tex]=118-15.34[/tex]
[tex]=102.66[/tex]
New number is 102.66.
Now, the percentage change is
[tex]\%\text{ Change}=\dfrac{\text{New number - Initial number}}{\text{Initial number}}\times 100[/tex]
[tex]\%\text{ Change}=\dfrac{102.66-100}{100}\times 100[/tex]
[tex]\%\text{ Change}=\dfrac{2.66}{100}\times 100[/tex]
[tex]\%\text{ Change}=2.66\%[/tex]
Therefore, the Single percentage change is 2.66%.
Plz, help I have no clue how to solve this.
Answer: Create equations. Top length=Bottom length
Left side = right side.
Combine like terms and rewrite the equations.
Use the new equations to create a system of equations to solve for x and y.
Once you have x and y, you can substitute those in the expressions for the lengths of the parallelogram.
You should end up with top and bottom lengths of 10. The sides are 9.
Step-by-step explanation:
3x-5 = 18 -2y . Rewrite as 3x + 2y = 23
x+4 = 21 -3y Rewrite as x + 3y = 17
The system of equations is
3x + 2y = 23 and x + 3y = 17 . To solve by substitution, multiply the second equation by -3 It becomes -3x-9y= -51 Add the equations so the x terms cancel. Solve for y
3x + 2y = 23
-3x - 9y = -51
0 -7y = - 28 Divide both sides by -7. y = 4
Substitute 4 for y, solve for x
x + 3(4) = 17
x + 12 = 17 . Subtract 12 from both sides x = 5
Substitute the values of x and y in the expressions
Top: 3x-5 is 3(5) -5 becomes 10
Bottom: 18 -2y is 18 - 2(4) becomes 10
Left: x +4 is (5) + 4 becomes 9
Right: 21 - 3y is 12 -3(4) becomes 9
John rode 2 kilometers on his bike. His sister Sally rode 6,000 meters on her bike. How many more kilometers did Sally ride?
Answer:
I don't understand, please write again
Answer:
Sally rode 4 kilometers more than her brother.
Step-by-step explanation:
1,000 meters = 1 kilometer
So if you convert Sally's meters into kilometers, you get 6 kilometers. John rode 2 kilometers so you do 6 kilometers - 2 kilometers = 4 kilometers.
Now you got your answer!
Hope this helped.
If the cost of 4 pears and 2 peaches equals $1.00 and the cost of 2 pears and 3 peaches equals $0.70 how much does each pear and each peach cost
Answer:
20 p per pear 10p per peach
Step-by-step explanation:
Hope this helps
Answer:
1 pear costs 20 cents. 1 peach costs 10 cents.
Step-by-step explanation:
x represents pears
y represents peaches
4x + 2y = 1
2x + 3y = 0.7
multiply the second equation by -2 to elimate the x variable
(2x +3y = 0.7) -2 = -4x - 6y = -1.4
add the new equation to the first original one:
4x + 2y = 1
-4x - 6y = -1.4
-4y = -0.4. divide both sides by -4, y = 0.10
plug in y = 10, solve algebraically and get x = 0.20
Lastly, check your work:
4(0.20) + 2(0.10) = 1
2(0.20) + 3(0.10) = 0.7
PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLEASE!! JUST THE TRAINFLE ONE
Answer:
yes
Step-by-step explanation:
we know because the triangle have the same angles
Answer:
no/yes
Step-by-step explanation:
Pls help me on this question ! 10 pts for you:)
2x (x + 4) -12x
if x=-3
Answer:
x=-3
Step-by-step explanation:
2x (x + 4) -12x
2×-3(-3+4)-12×-3
-6(1)+36
30
Which graph shows a function that is increasing at a constant rate?
The graph showing a function increasing at a constant rate is graph B.
How to determine a increasing or decreasing function in an interval?In order to check the rate of rise of a function in an interval find the value of its derivative at all the points of that interval. If the values of derivatives are increasing then the function is increasing else it is decreasing.
The graphs A and B are given in the problem can be analysed one by one as follows,
Graph A,
In the interval [-∞,0], the slope of the function is decreasing.
And, in the interval [0,∞], the slope is increasing.
Thus, it is not increasing at a constant rate.
Graph B,
The function has the same slope in both the intervals [-∞,0] and [0,∞], which is positive.
It implies that the function is increasing at a constant rate.
Hence, the function shown in graph B is is increasing at a constant rate.
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Does this table represent a function? Why or why not?
х
у
2
1
3
4
4
4
5
2
5
5
A. No, because two of the y-values are the same.
B. No, because one x-value corresponds to two different y-values.
C. Yes, because there is the same number of x-values as y-values.
D. Yes, because every x-value corresponds to exactly one y-value.
Answer: the answer is B
Step-by-step explanation:
Change 8.75% to a decimal.
Answer: 0.0875
Step-by-step explanation: you divide the number by 100
Write by what rule you know the triangles are congruent, or write CNBD for "Cannot be determined." Segments and angles are congruent only if marked congruent.
Answer:
SAS triangle congruence postulate
once again... drop the answer or ill drop ur ip :)
Answer:
-11x = -48 +15
x = (-48+15) / (-11)
x = -33 / -11
x= 3
hope that help
Step-by-step explanation:
4e88s45etds8sistzerse8rse85t8ss
Choose the linear inequality that describes the graph. The gray area represents the shaded region.
4x – 6y ≥ 10
4x + 6y ≤ 10
4x + 6y ≥ –10
4x + 6y ≥ 10
please help !
Answer:
4x+6y<=10
Step-by-step explanation:
The linear inequality that describes the graph is 4x+ 6y ≤ 10.
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
As, The bold straight line passes through the points (1,1) and (-2, 3).
so, equation of line will be
(y- 1) = (3-1)/ (-2-1) (x-1)
y-1 = 2 / (-3) (x-1)
-3y + 3 = 2x - 2
-3y -2x = -5
If we multiply by 2 both side we get
-6y - 4x = -10
4x+ 6y= 10
So, the required inequality for gray area is 4x+ 6y ≤ 10.
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Jeanie likes mixing leftover salad dressings together to make new dressings. She
combined 0.55 L of a 90% vinegar salad dressing with 0.45 L of another dressing to
make 1 L of salad dressing that is 60% vinegar. What percent of the second salad
dressing was vinegar?
Answer:
23%
im supposed to add more to this so i can submit this so here you go
PLS IM SO CONFUSLEZZZD
2+2
Manny begins the summer with $200
Answer:
1200
Step-by-step explanation:
Find the 101th term in the arithmetic sequence -3,-5,-7,-9,-11
What is the answer –0.32 = g − 1.42
Answer:
g= -1.74
Hope this helped :)
Put these numbers in order from least to greatest.
21, -21/40, -3/8, 21 3/40, 21 3/8
Answer:
-21/40, -3/8, 21, 21 3/8, 21 3/40,
Step-by-step explanation:
what is 5020 divide 110
Answer:
45.6363636 or 45.6
Step-by-step explanation:
Answer:
answer:it is 45.636
i don’t understand.
online school is hard
Answer:
4. [tex]6\sqrt{3}[/tex]
6. [tex]\frac{2\sqrt{6} }{3}[/tex]
8. 23.78
If x= 5 and y = 2, work out the value of a) 3x + y
b) 2x2
c) (x - y)2
Answer:
17, 50, 9
Step-by-step explanation:
Hello
We already know the values of x and y, 5 and 2.
All we have to do to figure out a, b, and c, is to plug in those known values.
a) 3x + y
Let's plug in x and y as 5 and 2
3(5) + 2
15 + 2
17
b) 2x^2
2(5)^2
2(25)
50
c) (x - y)^2
(5 - 2)^2
3^2
9
Answer:
A) 3(5)+2= 17
B) 2(5)2= 50
C) (5-2)2= 9
Step-by-step explanation:
