Answer:
1 kg of mushrooms costs £2.7.
Step-by-step explanation:
Step 1: Write equations.
Let a be the cost of apples per kg and m the cost of mushrooms per kg.
First equation: Ibrar buys 3 kg of apples. He also buys 0.4 kg of mushrooms. The total cost is £6.93.
[tex]3a + 0.4m = 6.93[/tex]
Second equation: 1 kg of apples cost £1.95.
[tex]a = 1.95[/tex]
Step 2: Solve the system of equations.
1) [tex]3a + 0.4m = 6.93[/tex]
2) [tex]a = 1.95[/tex]
Substitute a in the first equation with a from second.
[tex]3a + 0.4m = 6.93\\3(1.95) + 0.4m = 6.93[/tex]
Solve for m.
[tex]5.85 + 0.4m = 6.93\\0.4m = 6.93 - 5.85 \\0.4m = 1.08\\m = \frac{1.08}{0.4}\\m = \text{\£}2.7[/tex]
The cost of 1 kg of mushrooms is £2.7.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that Ibrar buys 3kg of apples
Ibrar buys 0.4kg of mushrooms.
The total cost is £6.93
3x+0.4y=6.93...(*)
1kg of apples cost is £1.95
x=1.95
Substitute the value of x in *
3(1.95)+0.4y=6.93
5.85+0.4y=6.93
Subtract 5.85 on both sides
0.4y=6.93-5.85
0.4y=1.08
Divide both sides by 0.4
y=2.7
Hence, the cost of 1 kg of mushrooms is £2.7.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ2
1.55y-(5y-17)/100=0.02
Answer:
Multiply to remove the fraction, then set equal to 0 and solve.
Exact Form: y = − 1/10
Decimal Form: y = − 0.1
Step-by-step explanation:
Answer:
y = -1/10 or -0.1
Step-by-step explanation:
Multiply both sides of the equation by 100.
To find the opposite of 5y−17, find the opposite of each term.
The opposite of −17 is 17.
Combine 155y and −5y to get 150y.
Subtract 17 from both sides.
Subtract 17 from 2 to get −15.
Divide both sides by 150.
Reduce the fraction
to lowest terms by extracting and canceling out 15.
Help me pls which one ahhh ??? Help will make brainlessly
Answer:
C
Step-by-step explanation:
There are nine lines between 0 and 1
The line the red dot is on is 0.9
Which equation correctly demonstrates the distributive property?
A. 7(6c - 4d) = 14cd
B. 30(3a + 2b) = 90a + 60b
C. 16(3j - 4k) = 48j - 4k
D. 4(2f + 5g) = 28fg
Answer:
B.
Step-by-step explanation:
b is the correct answer
Skyler goes to a school which has 1000 students in it.
She asks 40 random students whether they like the new 8.30 am start to the day.
30 of them say 'no' they do not like it.
Use this information to estimate how many students in the whole school
dislike the 8.30 am start.
30
Sampling Populations
View One Minute Version
Overview
Sampling Populations
Answer:
it's estimated that 750 students in the whole school dislike the 8:30am start time.
Step-by-step explanation:
Since 30 of the 40 students said "no", it means 30/40, or 3/4 of the random sample disliked the 8:30am start time. Multiply this by the whole population: 1,000 × (3/4) = 750.
Another way to check this is using 10/40 = .25 and doing 1000x.25 = 250 (the amount of students who liked it). Then subtract from whole population and it's 750.
Simplify 68.5/100 * 30.
Answer:
The answer to the question is 20.55.
Answer:
20.55
Step-by-step explanation:
1 Simplify 68.5/100 to 0.685.
0.685×30
2 Simplify.
20.55
A jar contains 3 blue marbles and 2 red marbles.
A marble is randomly selected from the jar and replaced, and then a second marble is chosen.
The probability that a blue marble was chosen both times is __%.
Answer: 9/25 or 36%
Step-by-step explanation:
The first time it is a probability of 3/5, and the second blue also has a prbability of 3/5. Multiply them together since it is an "and" situation, and you get 9/25. Or, in percentages, it is 60% * 60%, or 0.6 * 0.6, which is 36% or 0.36. Hope this helps!
Answer:
the correct answer is 36%
Step-by-step explanation:
I got it right on Edmentum
Hook me up with a 5 star and a thanks :)
Simplify the algebraic expression
The simplified form of the given algebraic expression will be 13/8 x - 5/6.
How to find the sum of algebraic fractions?Finding the least common multiples of the denominator expressions can help.
Then using the similar method as we use in the sum of fractions would give the sum of algebraic fractions.
For example,
[tex]\dfrac{a}b} + \dfrac{c}{d} = \dfrac{a \times d + c \times b}{bd}[/tex]
We have the given algebraic expression. we need to simplify the expression.
[tex]\dfrac{3}{4}x -\dfrac{1}{3} +\dfrac{7}{8} x-\dfrac{1}{2} \\\\\\\dfrac{3}{4}x +\dfrac{7}{8} x-\dfrac{1}{3} -\dfrac{1}{2} \\\\\\\dfrac{(6+7)}{8} x - \dfrac{(2+3)}{6} \\\\\\\dfrac{13}{8} x - \dfrac{5}{6}[/tex]
Learn more about multiplication here:
https://brainly.com/question/26816519
#SPJ1
31) Given the parent function f(x) = |x|, describe the translation of the function g(x) = 2|x] + 9 from the parent function.
Answer:
the graph is shifted up 9, compressed by a factor of 2
Step-by-step explanation:
General form of an absolute value equation:
f(x)= a|x - h| + k
The variable a tells us how far the graph stretches vertically, and whether the graph opens up or down. The variables h tell us how far the graph shifts horizontally and vertically.
parent function f(x) = |x|,
the translation of the function g(x) = 2|x| + 9 from the parent function.
- the +9 shift the graph up 9
- the 2 compresses the graph
Find the sum of the interior angles of a regular decagon. (10-sided figure)
Answer:
The interior angles add up to 1440 degrees, and the exterior angles add up to 360 degrees.
Step-by-step explanation:
Search "angle of a decagon"
Write the expression using exponents. 95 · 95 · 95 · 95 95
Answer:
95 to the power of 5
Step-by-step explanation:
D is at the top of a tree 8 meters tall. you are on the ground, 10 meters away from the bird. how far are you
the base of the tree?
710 meters
36 meters
6 meters
v6 meters
what is parallel, perpendicular, and intersecting lines?
Find BC. Please help fast I really need this answer for this test !!!
Answer:
16
Step-by-step explanation:
10*2 = 20
8*2 = 16
Multiply.
- 5x(2x²y - 3xy² + 5)
A. - 10x³y + 15x²y² - 25x
B. - 10x³y - 15x²y² - 25x
C. - 10x²y + 15xy² - 25x
D. - 10x²y - 15xy² - 25x
PLEASE HELP!!!
What type of association does the following scatterplot plot represent
A-Positive linear association
B-Negative linear association
C-Positive nonlinear association
D-Negative nonlinear association
Answer:
b
Step-by-step explanation:
...
What word best describes the DEMAND for snow boots in Florida?
A. High in the winter
B. High all year long
C. Low in the fall
D. low all year long
Answer:
D low all year long because it doesn't snow in Florida
Step-by-step explanation:
Answer:
D. Low all year long
Step-by-step explanation:
It rarely snows in Florida, even in northern Florida.
what is the area of 3m circumferense NONSENCE REPORT!
[tex]~~~~~~\text{Circumference}~ = 2 \pi r\\\\\\\implies r = \dfrac{\text{Circumference }}{2\pi}\\\\\\\implies r = \dfrac{3}{2\pi} \\\\\\\text{Now,}\\\\\text{Area} = \pi r^2 \\\\~~~~~~~~=\pi \left( \dfrac{3}{2\pi} \right)^2\\\\\\~~~~~~~~=\pi \cdot \dfrac{9}{4\pi^2}\\\\\\~~~~~~~~=\dfrac{9}{4\pi}\\\\\\~~~~~~~~\approx0.72[/tex]
50 points!!!
A quadratic function has one solution at x=-2-√6
What is the exact value of the other root?
x= ________
Answer:
Step-by-step explanation:
Discussion
The form of this root is a "mirror image" of the root that is given. They come in pairs.
So the exact value of the other root is
x = - 2 + √6
You should be very careful looking at this root. The only difference is the plus sign where the minus sign used to be.
The given root has to be of the form a rational number ± an irrational number.
Later on, when you get into higher math classes, you will find there is another kind of number that this same rule applies to.
ABC Bookstore sells one customer 12 used books and 4 new books for 136. Another customer buys 14 used books for 124. How much is one used book (u), and one new book (n)?
An equation is formed of two equal expressions. The cost of a new book is $7.43, while the cost of an old book is $8.86.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given the cost of 14 used books is $124. Therefore, the cost of a single used book is,
Cost of single used book(u) = 124/14 = $8.86
Also, the cost of 12 used books and 4 new books is $136. Therefore, the equation can be written as,
12u + 4n = 136
12(8.85) + 4n = 136
106.2 + 4n = 136
n = $7.43
Hence, the cost of a new book is $7.43, while the cost of an old book is $8.86.
Learn more about Equation:
https://brainly.com/question/2263981
#SPJ1
My sister and I each brought a bottle of sunblock to the beach. My bottle had 89ml and my sister’s had 147ml. How much more sunblock did my sister have?
Answer:
58 more ml
Step-by-step explanation:
147-89=58 ml.
Please help ?
What association does the scatter plot show?
A - positive nonlinear association
B - positive linear association
C - no association
D - negative nonlinear association
E - negative linear association
Answer:
C - no association
Step-by-step explanation:
The data isn't linked/following a general trend.
Which is the correct order of mass from least to greatest
Nitrogen, Helium, Hydrogen
C,B,A
Let f be the function given by f(x) = x^3 5x for what value in the closed interval [1,3]
If the average rate of change is 18, then the value of the x is √(13/5). Then the correct option is B.
What is the average rate of change?It's an average of how far the functions changed per unit throughout that time period.
Let f be the function given by f(x) = x³ + 5x.
Then the value in the closed interval [1,3] will be
The instantaneous rate of change will be
[tex]f'(x) = 3x ^2 + 5[/tex]
Then the average rate of change will be
[tex]= \dfrac{f(3) - f(1)}{3-1} \\\\= \dfrac{(3^3 + 5\times 3) - (1^3 + 5 \times 1)}{3-1}\\\\= 18[/tex]
Then we have
3x² + 5 = 18
Then the value of x will be
[tex]\begin{aligned} \rm 3x^2 + 5 &= 18\\\\\rm x &= \sqrt{\dfrac{13}{3}} \end{aligned}[/tex]
More about the average rate of change link is given below.
https://brainly.com/question/24062595
#SPJ4
Part b find the total number of pounds of cheese ordered. a. 11 pounds b. 13 pounds c. 15 pounds d. 17 pounds
Answer:
B po I'm sure that's is answer thank you
12x^2+ 16x factor by gcf
Answer:
The factor of 12x^2 + 16 is 4x (3x+4)
In six hours, yokai reads 36 chapters. What is her rate in chapters per hour?
Answer:
6
Step-by-step explanation:
You would divide the total number of hours by the number of hours to come to the final answer of 6
please mark brainliest (:
do all three.. Write the product using exponents.
Answer:
2. [tex]-2^{3}[/tex]
4. [tex]-1.2^{3}[/tex]
6. [tex]-100n^{3}[/tex]
Step-by-step explanation:
hope this helps and is right!! p.s. i really need brainliest :)
3. Which statement is true?
Answer:
C
Step-by-step explanation:
A is wrong because 10 is not prime
B is wrong because still above^^
D is wrong because diagonals of a rhombus are not congruent.
So C is correct
J(2,−1), K(4,−5), L(3, 1) reflection x axis
Answer:
△JKL is not congruent to △J′K′L′ because there is no sequence of rigid motions that maps △JKL to △J′K′L′.
Step-by-step explanation:
If L' were (-3,-4), it would be a reflection of L across the x-axis as J' and K' are with respect to J and K. Unfortunately, because it is not, the side lengths J'L' and K'L' of triangle J'K'L' are different from those of triangle JKL. This ensures the triangles JKL and J'K'L' are not congruent.
- Jackson
describe another way you could slice the pyramid that would result in a different cross section
Answer:
45 degree ange slice
Step-by-step explanation: