Answer:
£800
Step-by-step explanation:
Use the percentage formula: NV = m x OV
NV is New Value;
m is Multiplier;
and OV is Old Value.
£640 in the New value, so now we have to convert 20% to a multiplier and find out the Old value.
Make OV the subject of the formula: OV = NV / m
So 20% decrease would mean: 100 - 20 = 80 * 100 = 0.80
Divide 640 (NV) by 0.80 (m) and it will give you:
£800
And it would make sense that the OV is higher, and it matches the statement -> as the NV is the decrease.
PLEASE HELP URGENT!!!!
Answer:
A
Step-by-step explanation:
When two lines cross, the angles opposite of each other are always equal.
Example:
4=21=3You can even check this by adding all of the angles together to equal 360.
what is 64 thousandths in decimal form
The answer is .00064, because if you were to make in Thousand form it would look like this ➡️ 64,000. See the 3 Zeros? that is what makes it a thousand. now wht woul happen if we switched that around? well it would look like this ➡️ .00064. as you can see, there are 3 zeros, like in the last example. so your answer is ''.00064''
Which measurements below will not create a right triangle? *
3 inches, 4, inches, 5 inches
5 inches, 6 inches, 7 inches
6 inches, 8 inches, 10 inches
5 inches, 12 inches, 13 inches
Which method for solving a system of equations starts by solving one equation for one variable?
Select one:
A. Substitution Method
B. Elimination Method
Answer: A: substitution method
Step-by-step explanation:
The substitution method is one way of solving systems of equations. To use the substitution method, use one equation to find an expression for one of the variables in terms of the other variable. Then substitute that expression in place of that variable in the second equation.
1 5/6 ÷ 3/5 x 2/11 = ?
please help! will give brainliest! also, please show all work, thanks!
Answer:
75/99
Step-by-step explanation:
Work out the percentage change to 2decimal when a price of 11 is decreased by 8
Answer:
To get the percentage change, we need to compare the new price to the old price.
Step-by-step explanation:
[tex] \frac{11 - 8}{11} \times 100\% = 27.27\%[/tex]
this is due in a bit and im having a bit of trouble, any solutions?
Answer:
I believe that those triangles are not similar
Step-by-step explanation:
5 is 1.666 of 3
20/3=6.667
1.666 does not equal 6.667
if I did that correctly, they are not similar
Hope this helps!
What is the greatest common factor (GCF) of 24 and 36?
4
12
2
6
the greatest common factor of 24 and 36 is 12
Answer:
12
Step-by-step explanation:
What happens to the equation when y = x becomes y = -x?
pleaseeee help.
4863/55
Is 700,000 L or
70 KL bigger
Answer:
there the same
Step-by-step explanation:
PLZ HELP WITH THIS QUESTION !!!!!!!!!
Answer:
I believe the answer is B
Step-by-step explanation:
y = -5x+6
Given x = 5
Y=?
Answer: y =-19
Step-by-step explanation:
A store purchases baseball hats from two different manufacturers in 3 different colors, summarized
below. One hat is chosen at random. Give your answer as a decimal out to at least 4 places.
Black Blue Red Total
Manufacturer A 23 21 29 73
Manufacturer B 27 17 10 54
Total 50 38 39 127
х
a) Find the probability that the hat was was Black or was from Manufacturer A. 0.3150
O 0.78740157480315
b) Find P(Red).
c) Find P(Manufacturer B and Red),
d) Find P(Manufacturer B or Red).
Answer:
See below
Step-by-step explanation:
a)
P(A or Black) = (73 + 27)/127 = 100/127 = 0.7874015748
b)
P(Red) = red/total = 39/127 = 0.30708661417
c)
P(Manufacturer B and Red) = (B and red)/total = 10/ 127 = 0.0787401575
d)
P(Manufacturer B or Red) = (B or red)/total = (54 + 29)/127 = 0.65354330708
How do you write 8.97 x 102 in standard form?
Answer:
914.94
Step-by-step explanation:
(4/5)^2+ 2/5 ÷ 1/2( these are fractions and the 2 is a exponent) hurry up please
Answer:
Step-by-step explanation:
What are the solutions of each equation?
a. x2 + 4 = 4
b. x2 + 16 = 0
c. x2 − 49 = 0
Answer:
a. x=0
b x=-8
c x=49/2
Step-by-step explanation:
a. x2+4=4
subtract 4 from both sides
x2=0
multiply
2x=0
divide by 2
x=0
b x2 + 16 = 0
multiply
2x+16=0
subtract both sides by 16
2x=-16
divide by 2
x=-8
c x2 − 49 = 0
multiply
2x-49=0
add 49 to both sides
2x=49
divide both sides by 2
x=49/2
Answer:
a. X= 0
b. X= undefined or X=4i
c. X= + or - 7
Step-by-step explanation:
a. x² + 4 = 4
when 4 goes to the other side by negative sign it will cancel the other 4. at they equal in magnitude and opposite in sign.
then x² = 0 , where √x²=√0 , finally x=0
b. x² + 16 = 0
16 goes to other side by negative sign too
x² = -16 , where √x²=√-16 , finally x= undefined
due to the negative sign under thr square root.
at √-1 = i then x can be 4i
c. x² - 49 = 0
-49 go to the other side by positive sign
x² = 49 , where √x² = √49 , finally x= + or - 7
where negative sign is neglected at even power
example:
(-7)²=(7)²
Please help me out with this one
Answer:
-2
Step-by-step explanation:
Rise/run
write an equation of a line parallel to the line y=-2x+8 and passes through the point (-1,-3)
Answer: y=–2x–5
Step-by-step explanation:
The equation of a straight line:
y=mx+c
m must be the same for the two lines to be parallel.
y=mx+c
y=–2x+8 → m=–2
For a new equation:
x=–1, y=–3, m=–2, c=?
y=mx+c → –3=–2×(–1)+c
–3=2+c
c=–5
So:
y=–2x–5
PLZ ANSWER QUICK IT WILL HELP A LOT!
Answer:
A
Step-by-step explanation:
A
Which two expressions are equivalent?
X + (
86)
(X + 8). 6
12
B 8.4 + X
8. X + 4
с
9(5 + x)
9.5+9 • X
D 6. X+2
6. (x+2)
Answer:
you should take a picture of the problem and upload that, it is very difficult to understand your question in this format. sorry!
Answer:
Step-by-step explanation:
D
help please.. quickly
How many kilograms of chocolate will each person get if 4 people share 1-3 of kilograms of chocolate equally
Answer:83 grams of chocolate.
Step-by-step explanation:
Answer:
1/12
Step-by-step explanation:
4 ÷ 1/3=
All we need to do here is multiply the whole number by the numerator and make that number the new numerator. The old numerator then becomes the new denominator. Let's write this down visually:4*3/1=12/1
so flip it and you get 1/12
*PLEASE HELP ME ASAP* Sydnis room is 32 ft by 40 ft. She needs to make a scale drawing of her room that is 8 in. by 10 inc. What is the scale she needs to use?
1 inch = 8ft
1 inch = 4 ft
1 inch = 2 ft
1 inch = 1 ft
PLZ help me do this work i don't get its hard :(
Find the zeros of the function. f(x) = x^2 + 3x + 2
Answer:
This function returns a zero value when x is equal to negative one or negative two.
Step-by-step explanation:
We can solve this by factoring the function:
f(x) = x² + 3x + 2
= x(x + 1) + 2(x + 1)
= (x + 1)(x + 2)
So function equals zero when x = -1 or -2
How would you write the equation of a line that passes through (2, 3) and (3, 1)
Answer:
y= -2x + 7
Step-by-step explanation:
I did the math and the slope was -2 and the y-intercept was 7
What is the largest integer that makes 4t - 42 - 18t > -14 true?
Answer:
[tex]t < - 2 \\ t = - 3[/tex]
Step-by-step explanation:
[tex]4t - 42 - 18t > - 14[/tex]
[tex]4t - 18t > - 14 + 42[/tex]
[tex] - 14t > 28[/tex]
[tex] \frac{ - 14t}{ - 14} < \frac{28}{ - 14} [/tex]
[tex]t < - 2[/tex]
[tex]if \: \: \: \: \: t = - 3[/tex]
[tex]4t - 42 - 18t { > }^{?} - 14[/tex]
[tex]4 \times - 3 - 42 - 18 \times - 3 { > }^{?} - 14[/tex]
[tex] - 12.6 > - 14[/tex]
{(4,7),(2,5),(6,0),(4,_)} If this is a relation
is a function, then what number must
fill in the blank?
Answer:
Ans: The number will be six (6)
Which expression is equivalent to 3 the 5th power?
Answer:
The expression equivalent to 3 to the 5th power is 3^5.
The number 3 raised to the 5th power is represented through the expression 3 ^ 5, which means that the number 3 is multiplied by itself 5 times (3x3x3x3x3), which results in the number 243, which is can be corroborated by the following calculations:
3x3 = 9
9x3 = 27
27x3 = 81
81x3 = 243
The solution is: The expression equivalent to 3 to the 5th power is 3^5.
Here, we have,
The number 3 raised to the 5th power is represented through the expression 3 ^ 5,
which means that the number 3 is multiplied by itself 5 times (3x3x3x3x3),
which results in the number 243,
which is can be corroborated by the following calculations:
3x3 = 9
9x3 = 27
27x3 = 81
81x3 = 243
Hence, The solution is: The expression equivalent to 3 to the 5th power is 3^5.
To learn more on Expression click:
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