help please and show working
Answer:
27/4 or 6 3/4
Step-by-step explanation:
Change all mixed numbers into improper fractions
2 1/9 = 19/9
6 1/4 = 25/4
19/9 ÷ 2/3 - 25/4 x 2/5
dividing fractions you can multiply and use reciprocal of the fraction (means you switch the top and bottom numbers)
19/9 x 3/2 - 25/4 x 2/5
you can reduce the top and bottom numbers to make them smaller by dividing. find a common number to divide them by, you can cross out the numbers and just put the new equation below
19/3 x 1/2 - 5/4 x 2/1
multiply across the fractions first PEMDAS, then subtract
19/6 - 10/4 (multiply by 2 and 3 respectively to get both bottom numbers the same, multiply by the same number on top)
57/12 - 30/12 = 27/12
1/5 x 1/3 + 2/5 x 2/3
1/15 + 4/15 = 5/15 or 1/3
27/12 / 1/3
you can multiply the fractions and flip the top and bottom numbers of 1/3
27/12 x 3/1
reduce 12 and 3
27/4 x 1/1 = 27/4 or 6 3/4
Factorise the link expression 5(x- 2) - y(2-x)
Step-by-step explanation:
5(x- 2) - y(2-x)
5(x- 2) - -y(x-2)
5(x- 2) + y(x-2)
=(5+y) (x-2)
Use the quadratic formula to find the solutions to the quadratic equation
below.
3x^2-5x+4=0
Answer: x
=
5
±
i
√
23
6
Explanation:
y
=
3
x
2
−
5
x
+
4
=
0
Use the improved quadratic formula.
D
=
d
2
=
b
2
−
4
a
c
=
25
−
48
=
−
23
=
23
i
2
-->
d
=
±
i
√
23
There are no real roots. There are 2 complex roots:
x
=
−
b
2
a
±
d
2
a
=
5
6
±
i
√
23
6
=
5
±
i
√
23
6
Step-by-step explanation:
Answer:
X= (5 ± i√23)/6
PLEASE SOMEOME HELP ME MY HW IS DUE TMR ITS 8TH GRADE ALGEBRA 1 LINEAR FUNCTIONS
PLEASE IM BEGGING ANYOME HELP ME
lol here again
what is 7.5% of 30 rounded to the nearest tenth (as a decimal)
Answer:
2.3
Step-by-step explanation:
A cartoon of staples has 50 packages. The carton contains 25,000 staples in all. Each package has an equal number of staples. How many staples are in each package? Explain how to use a basic fact to find the answer.
The largest virus known to man is the Megavirus, which measures 0.00000044 meters across Express this number in scientific notation.
Answer:
4.4x10⁻⁷
Step-by-step explanation:
Decimal moves 7 places to the right so the exponent if negative.
If £2000 is placed into a bank account that pays 3% compound interest per year, how much will be in the account after 2 years?
Answer:
we gotta find compound amount here..
CA=compound amount
P=principal
R=rate of interest
T=time
copy the picture and put a dot on where i put it
Answer:
Step-by-step explanation:
I Hope This Help
Answer:
hERE
Step-by-step explanation:
which of the following number is the greatest number? a)23,675 b)66,072 c)25,976 d)91,731
Answer:
D. 91,731
Step-by-step explanation:
91,731 would be the greatest number since it has the largest number in the ten-thousands place.
The price of an item yesterday was $130. Today, the price rose to $299. Find the percentage increase.
Answer:
130%
Step-by-step explanation:
Use the formula for percent change: difference = % * original price
To find the difference, you have to do 299 - 130, which is 169.
The original price is $130 because this is the price before it rose to $299.
Now, you have the equation 169 = % * 130.
We don’t know the percentage right? No, so we have to find the percentage by dividing 169 by 130, which gives you 1.3. Lastly turn 1.3 into a percentage by multiplying 1.3 by 100, and 1.3 as a percentage is 130%. So therefore, the percent increase is 130%.
130%
Step-by-step explanation:
Yesterday = $130.
Today = $299 .
((final price - initial price)/(initial price)) × 100%
= (($299 - $130)/$130) × 100%
= ($169/$130) × 100%
= $1,3 × 100%
= 1,3 × 100%
= 130%
if x:y = 2:5, find the value of (x + y) : (2x-3y)
Answer:
(x + y) : (2x-3y) = - 7/11
Step-by-step explanation:
The ratio is denoting:
x = 2
y = 5
Substitute your values into the equation's variables (x and y). Then solve.
(x + y) : (2x-3y)
(2 + 5 ) : [2(2) - 3(5) }
7 : [4-15]
7: -11
ratios can be turned into fractions.
7: -11 is the same thing as - 7/11
Write Your Own Problem
Answer:
Step-by-step explanation:
You could find the mean, median or range of the numbers?
Katie memorized 40 multiplication facts last week. This week she memorized 56 multiplication facts. What is her percent of increase for memorizing multiplication facts this week? o 22.4 % O 71.4 % O 40% O 140%
The percent of increase in Katie's memorization of multiplication facts this week is 40%. Option C
To calculate the percent of increase for Katie's memorization of multiplication facts this week, we need to find the difference between the number of facts she memorized last week and this week, and then express that difference as a percentage of the original value.
Number of multiplication facts memorized last week: 40
Number of multiplication facts memorized this week: 56
To find the difference in the number of facts, we subtract the number memorized last week from the number memorized this week:
56 - 40 = 16
The difference is 16.
To calculate the percent of increase, we divide the difference by the original value and multiply by 100:
(16 / 40) * 100 = 40
The percent of increase in Katie's memorization of multiplication facts this week is 40%.
Therefore, the correct answer is C) 40%.
For more such questions on percent visit:
https://brainly.com/question/24877689
#SPJ8
What is 20x8 divided by 3-5
Answer:
-80
Step-by-step explanation:
→ Complete the multiplication
20 × 8 = 160
→ Complete the take away
3 - 5 = -2
→ Divide the two answers from each other
160 ÷ -2 = -80
5
an
The distance between two cities on a map is 3.5 centimeters. The map uses a scale in which 1
centimeter represents 20 kilometers. What is the actual distance between these two cities in
kilometers? hi
Answer:
(0,2),(1,6),(−2,−6) are solutions
Solve the rational equation quantity 4 times x minus 1 end quantity divided by 12 equals eleven twelfths.
Answers:
x=2.5
x=2.7
x=3
x=4
Answer:
x=3 or C
Step-by-step explanation:
I just did the math and got it correct on my FLVS quiz
pls answer this...thank you
Answer:
I can't answer this I cant read that sloppy handwriting
Please help immediately
Show your work
Answer:
a + 7
Step-by-step explanation:
x^2 + 2x - 8. on [5,a]
(f(a)-f(5))/( a - 5 )
(( a^2 + 2a - 8 ) - 27 ) / a - 5
( a^2 + 2a - 35 ) / a - 5
(a - 5)(a + 7) / a - 5
a + 7
What is the midpoint of a line with endpoints (6,5) and (14,7), (Your answer
should be an ordered pair)
Answer:
Midpoint = (10,6)
Step-by-step explanation:
Using Coordinates: X(6,5) and Y(14,7)
Using the midpoint formula: M = (X1 +Y1)/2, (X2 + Y2)/2
Midpoint of XY = (6 + 14) / 2, (5 + 7) / 2
Midpoint of XY = (20) / 2, (12) / 2
Therefore the midpoint of XY is (10,6)
Identify the zeros of the function allgebraically
F(x)=x+2
Answer:
x = -2
Step-by-step explanation:
Equate x+2 with 0
x+2 = 0
x = -2
Feel free to mark this as brainliest! :D
The Hulk just flew into the Boston airport to visit some family, but due to car problems, they are
unable to pick him up. He only has $20 on him. He needs to call a cab that costs $1.75 initially and
$.65 per mile. How far will he be able to go? If his family lives 25 miles away, will the cab be able to
get him to his family?
Answer:
Yes, he will be able to afford 25 miles
Step-by-step explanation:
20.00 - 1.75 = 18.25
He will have $18.25 after the initial payment.
18.25 / 0.65 = 28~
He will be able to go 28 miles with the 18 dollars he has left.
Please help me answer this question. Brainiest to the correct answer with a formal and clear explanation. More questions in 2 mins.
Answer:
101 degrees
Step-by-step explanation
Image result for step of how to find a missing angle
For the exact angle, measure the horizontal run of the roof and its vertical rise. Divide the horizontal measurement by the vertical measurement, which gives you the tangent of the angle you want. Use a trigonometry table to find the angle.
Help please help me please
Answer:
Step-by-step explanation:
is y = 3x^2 + 2 a linear
Answer: no
Step-by-step explanation:
an example of a linear equation is x + 1. linear means a straight line. In a linear, the highest exponent on the x opponent is 1. in the equation 3x^2 + 2, the highest exponent on the x opponent is 2 which means this is a quadratic not a linear.
please answer for question 8 and A and B
I factory produced 90 pairs of designer jeans And inspector Randomly choose his 6 pairs of jeans And discovers that 1 of the Pairs of jeans Pairs of jeans Is defective.
A. What is this experimental probability that a pair of jeans inspected will be defective.
B. How many of the 90 pairs of jeans would you expect to be defective.
I need help PLEASE!
For a function f, we are given that f(8) = 1 and f'(8) = 2.
What's the equation of the tangent line to the graph of f at x = 8?
Answer:
Step-by-step explanation: y
'
(
x
)
=
1
f
'
(
f
−
1
(
x
)
)
y
'
(
−
8
)
=
1
f
'
(
f
−
1
(
−
8
)
)
y
'
(
−
8
)
=
1
f
'
(
2
)
y
'
(
−
8
)
=
1
−
3
(
2
)
2
−
1
y
'
(
−
8
)
=
1
−
12
−
1
y
'
(
−
8
)
=
−
1
13
Can someone pls help me out
Answer:
option a. similar;AA similarity; triangle plm
8n - 7 = -5(-3n - 7)
Solve Multi-Step equation.
Please explain how you i can understand too!
Answer:
n=-6
Step-by-step explanation:
8n-7=-5(-3n-7)
Multiply -5 to -3n and -7
8n-7= 15n+35
Bring 8n to the other side by subracting it from 15n
-7=7n+35
Subtract 35 from both sides
-42=7n
Divide both sides by 7
n=-6
A group of 5 friends is shering 2 pounds of trail mix .Write a division problem and a fraction to represent this situation
Answer:
Division problem - 2/5
Fraction - 2/5
Step-by-step explanation:
The answer is the same because in mathematical situations, division and fraction is considered same.