Answer:
x = -1
Step-by-step explanation:
Distribute by multiplying -5x by 2 and 4 by 2, leaving you with -10x+8+4-5=-3, then solve leaving you with x = -1.
If the radius of a circle is cut in half, what is the scale factor needed to adjust the area of the original circle to the smaller circle?
When the radius is halved, your area will be divided by 4. If you think about it, radius is already half of the diameter so your area is already divided by 2, so if you cut the radius is half again, your area will be divided by 4.
A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?
Answer:
5 per hour
Step-by-step explanation:
Answer:
Step-by-step explanation:
120 customers / 8 hours= 15 customers per hour
2. Solve the equation below. please show your work!! :))
2(4p +1) = 2(2p-5)
Answer:
p = -3
Step-by-step explanation:
2(4p + 1) = 2(2p - 5)
8p + 2 = 4p - 10
Subtract 4p from both sides.
8p - 4p = 4p
4p + 2 = -10
4p + 2 - 2 = 10 - 2
4p = -12
4p ÷ 4 = p
-12 ÷ 4 = -3.
Hence, p = -3.
Hope this helped.
Answer:
[tex]p=-3[/tex]
Step-by-step explanation:
--------------------------------------
[tex]2\left(4p+1\right)=2\left(2p-5\right)[/tex]
Expand:- [tex]2\left(4p+1\right)[/tex]
[tex]=8p+2[/tex]
Expand:- [tex]2(2p-5)[/tex]
[tex]=4p-10[/tex]
-------------------------------------
[tex]8p+2=4p-10[/tex]
→ Subtract 2 from both sides:
[tex]8p+2-2=4p-10-2[/tex]
[tex]8p=4p-12[/tex]
→ Subtract 4p from both sides:
[tex]8p-4p=4p-12-4p[/tex]
[tex]4p=-12[/tex]
→ Divide both sides by 4:
[tex]\frac{4p}{4}=\frac{-12}{4}[/tex]
[tex]p=-3[/tex]
--------------------------------------
OAmalOHopeO
A jar contains 18.50 in dimes and quarters. there are 110 coins in the jar. find the number of quarters and dimes in the jar.
Answer:
I believe there would be 50 quarters and 60 dimes
Step-by-step explanation:
Next question? Does anybody know it?
Answer:
0
Step-by-step explanation:
Answer:
the answer is undefined.
Step-by-step explanation:
-9-3
5-5
-12⇒
0⇔ its undefined.don´t forget to brainllest.
(8 - 11) x 1-11 + 7) = ?
A. -54
B. -12
C. 12
D. 54
E. 76
Answer:
its B.
Step-by-step explanation:
hope this helps ~(￣▽￣)~*
Answer:
B. -12
Step-by-step explanation:
(8-11)*l -11 +7 l =
Solve inside the parentheses
8-11 = -3
Solve inside the absolute value signs
-11+7 = -4
Take the absolute value of - 4
l-4l = 4
Multiply -3 and 4
-3*4 = -12
So the answer is B. -12
A sum of 2440 is made up of N100 and N10 notes. There are 6 times as many N100 notes as
there are N10 notes. Find the number of N100 notes.
The number of N 100 notes in the 2440 is 24 notes
What is proportion?A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls. 0.25 are boys (by dividing 1 by 4.
Relating the example with the question , for every 6, N100 notes there is 1, N10 notes . This means the ratio of N100 note to N10 note is 6:1
Therefore for every N600 there will be 10N
following the trend, for every N1200 there will be N20. for every N1800 there will be N30 and for every N2400 there will be N40
The addition of 2400+40= 2440
This means that the sum of N100 is 2400
Therefore the number of N100 is 2400/100= 24 notes
learn more about proportion from
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You paint 13 of a wall in 14 hours. At that rate, how long will it take you to paint one wall?
what is the GCF of 45 and 60?
Answer:
The GCF of 45 and 60 is 15.
Step-by-step explanation:
First let us find the factors of 45 and 60.
[tex]\left[\begin{array}{ccc}&45&\\15&*&3\\5*3&&\end{array}\right][/tex] [tex]\left[\begin{array}{ccc}&60&\\15&*&4\\5*3&&2*2\end{array}\right][/tex]
Based on this, you can tell that they both have the number 3 and the number 15 in their factors.
15 > 3
The GCF of 45 and 60 is 15.
. XYZ has vertices X (–5, 2), Y (0, –4), and Z (3, 3). What are the vertices of the image of X’Y’Z’ under the translation (x, y) → (x + 7, y – 5) ?
Answer:
X' = (2, -3)
Y' = (7, -9)
Z' = (10, -2)
Step-by-step explanation:
to find the translation of each point substitute the x and y with the the numbers
eg; X ( -5,2) the x is 5 and the y is 2
so -5 + 7 = 2 (the x value)
2 - 5 = -3 ( the y value)
Which equation matches the graph?
у
4
2
х
4
12
o
2
4
-21
Answer:21
Step-by-step explanation:
Answer:
BruV
Step-by-step explanation:
what do you mean???
find z and x
please help i’ll mark the first one or whoever right brainliest
1. Determine whether the following numbers could be the sides of a right triangle. Show your work.
a.
7, 25, 19
b.
17, 15, 8
Answer:
B 17,15,8
Step-by-step explanation:
8sqrd+15sqrd=17sqrd
64+225=289
ON A TEST PLZ ANSWER This equation represents what type of function?
y=1/2x^3+ 5x
A linear
B quadratic
C exponential
D cubic
A bus travels 20 km in 30 minutes. What is the average speed of the bus in kilometers per hour?
Answer:
40
Step-by-step explanation:
Answer:
40 kilometers per hour
Step-by-step explanation:
Since it is 20km and 30m, you double both values to get 40km and 60m
Brianna works at an electronics store as a salesperson. Brianna earns a 4% commission on the total dollar amount of all phone sales she makes, and earns a 4% commission on all computer sales. How much money would Brianna earn in commission on a day that she sold $1900 worth of phones and $1600 worth of computers? How much money would Brianna earn in commission on a day that she sold $xx worth of phones and $yy worth of computers?
Answer:
P(x)=0.025x+100
Step-by-step explanation:
The 0.025 is 2.5% as a decimal. Then, the +100 is for the base pay amount Hailey receives.
Answer:
Lacy would earn a commission of $104.
Lacy would earn 0.06x dollars on phones sale and 0.02y dollars on computer sales.
Step-by-step explanation:
Hopefully this helped, if not HMU and I will try my best to get u a better aswer!
Have a great day! :)
And if u need help HMU and I got you, no points needed:)
Andf thanks for the 25 points! :D
Sam used the following method to find the prime factorization of 54:
Answer:
what are the choices
Step-by-step explanation:
A rectangle with an are of 40ft*2 is dilated by a scale factor of 3.What is the area of the image?
Answer:
120
Step-by-step explanation:
Which decimal is equivalent to 311
Answer:
3.11
Step-by-step explanation:
Answer:
0.622
Step-by-step explanation:
Find the unit rate for 1/2 mile in 3/10 hour
Answer:
1 mile for every 0.6 hours
Step-by-step explanation:
0.5 x 2 = 1
3/10 x 2 = 6/10
2 miles = 1.2 hours
Kelly wrote two expressions on the board. If only one of them was an equation,
which of the following must be true?
Answer:
give me a minute i will answer
Step-by-step explanation:
What number should go in the space?
Multiplying by 1.45 is the same as increasing by _____%.
Answer:
you would way nothing
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
The graph of linear function f passes through the point (3, 2) and has a slope of 2. What is the zero of f?
Considering the definition of a line and zero of a linear function, the zero of the linear function that passes through the point (3, 2) and has a slope of 2 is 2.
Linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin and represents the coordinate of the point where the line crosses the y axis.Zeros of a functionThe points where a linear function crosses the axis of the independent term (x) represent the so-called zeros of the function.
That is, zeros of the function are those values of x for which the expression is equal to 0.
Line in this caseIn this case, you know:
The line has a slope of 2.The line passes through the point (3, 2).Substituting the value of the slope m, you get:
y= 2x +b
Replacing the value of the point in the previous expression, the value of the ordinate to the origin b can be obtained:
2= 2×3 + b
2= 6 + b
2-6= b
-4= b
The equation of the line that passes through the point (3, 2) and has a slope of 2 is y= 2x -4.
The zero of the function is calculated as:
0= 2x -4
Solving:
0 + 4= 2x
4= 2x
4÷2= x
2=x
Finally, the zero of the linear function is 2.
Learn more about zero of a linear function:
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marking brainliest to whoever gives me the correct answer and a good explanation
Answer:
C
Step-by-step explanation:
180-130 = 50
50 + 80 + x = 180
80 + x = 180 -50
80 + x = 130
If ∆QRS ≈ ∆XYZ, then RS is congruent to?
A. XY
B. YZ
C. XZ
D. YX
Answer:
yz
Step-by-step explanation:
........
........
answer is YZ
find the range of the function y=7x-1 when the domain is {-1, 0, 1}
Answer:
b
Step-by-step explanation:
f(x) = x(3) - 10x(2) + 28x -24 write a Write a description of the graph that includes all key characteristics below
A recipe uses 2 parts of sugar for every 3 parts of flour. You use 8 cups of sugar. Use the ratio table to find how many cups of flour you use.
QUICK PLEASE
Answer:
12
Step-by-step explanation:
Isaac’s family took a cab to a concert. The bill came to a total of $43.50. The family wants to tip the driver at least 20%. Which tip amounts would be sufficient? Select all that apply.
$7
$8
$9
$10
$11
Answer:
The option d is the correct answer
Michelle bought some pinwheels for a dollar and paid in dimes. How many dimes did she use. Explain
Answer: 10
Step-by-step explanation:
There are ten cents in a dime, you multiply 10 times 10 and that will give you 100. hope this makes sense
