Graphing, substitution, and elimination are the three techniques used to solve systems of equations.
What is meant by linear equation ?There is only one way to know the unknown variable X. As a result, d has a value of 1. To find an equation, we must know the variable(s) that are missing as well as any associated known variable(s).
A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept. Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.
The first-degree equations are linear equations. This is the formula for a straight line. Ax+by+c = 0, where a and b are both zeros, is the conventional form of a linear equation.Anything connected to a line is said to be linear.
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in shop a crunchy peanut butter costs $325 for 250g
in shop b crunchy peanut butter costs $408 for 340g
which shop gives better value for money. explain your answer
Answer:
shop b
Step-by-step explanation:
We can find for example how much 100 grams of peanut butter cost in each shop using a proportion
shop A 100 : 250 = x : 325
x = (325 * 100) / 250 = $130
shop B 100 : 340 = x : 408
x = (408 * 100)/ 340 = $120
We discovered that shop B is cheaper
Chelsea is covering the outside of an old toy box with decorative paper. The box measures 6 inches by 14 inches by 3 inches.
How many square inches of paper is needed to cover the box?
Answer:
She will be needing 300 square inches of paper
length=14inches
breadth=3inches
height=6inches
TSA= 2(lb+lh+bh)
=2(14×3+14×6+3×6)
=2(42+84+24)
=2×150
=300 square inches
Answer:
69,420
Step-by-step explanation:
69,420 sq ft of decorative paper
The doctor wrote a prescription for 3,110 milliliters of medicine. How many liters of medicine did she prescribe? (1 liter = 1,000 milliliters)
Answer:
3.11 liters
Step-by-step explanation:
converting mL to L requires dividing by 1000, or moving the decimal point 3 places to the left
A large tank holds 5 x 10^7 gallons of oil. How much oil can be stored in 27 tanks?
Write your answer in scientific notation.
Answer:
i dunno do the math
Step-by-step explanation:
find the slope of the lines graphed below
Answer:
use formula
slope m =(y2-y1)/(x2-x1)
Step-by-step explanation:
for first one
(x1,y1)=(2,1)
(x2,y2)=(0,-3)
now
slope m =(y2-y1)/(x2-x1)=(-3-1)/(0-2)=-4/-2=2
try other thank you hope it helps
Add fractions with unlike denominators
Answer:
29/12
Step-by-step explanation:
[tex]\frac{7}{4} +\frac{2}{3}[/tex]
7 * 3 / 4 *3 = 21/12
2 * 4 / 3 * 4 = 8/12
[tex]\frac{21}{12} +\frac{8}{12}= \frac{29}{12}[/tex]
Hope this helps!
Answer:
29/12 or 2 and 5/2 as a mixed number
Step-by-step explanation:
To complete the square for x2 + 8x = -7
you will need to add what number to both sides?
A. -4
B. 12
C. 64
D. 16
Helppp please i need help!!! I was having trouble
Chase has been playing a game where he can create towns and help his empire expand. Each town he has allows him to create 1.13 times as
many villagers. The game gave Chase 4 villagers to start with. Help Chase expand his empire by solving for how many villagers he can create
with 17 towns. Then explain to Chase how to create an equation to predict the number of villagers for any number of towns. Show your work
and use complete sentences. (10 points)
Answer:
about 23 villagers
Step-by-step explanation:
17 x 1.13 =19.21 + 4 =23.21
chase would have to use the equation
(n x 1.13)+4
with n being the number of towns
Osvoldo has a goal of getting at least 30, percent of his grams of carbohydrates each day from whole grains. Today, he ate 220 grams of carbohydrates, and 55 grams were from whole grains.
Answer:
No
He ate only 25% from whole grains
He ate 5% less grams from his goal
Step-by-step explanation:
Osvoldo has a goal of getting at least 30, percent of his grams of carbohydrates each day from whole grains. Today, he ate 220 grams of carbohydrates, and 55 grams were from whole grains.
Did Osvoldo meet his goal? Why? , Osvoldo ate grams of whole grains than his goal.
Percent of whole grains ate = grams of whole grain / total carbohydrates) x 100
(55/220) x 100 = 25%
This is less than his goal of 30% by (30% - 25%) 5%
Answer:
No, Osvoldo 11 grams of whole grains less than his goal.
Step-by-step explanation:
30% x 220
30% = 30/100 = 30 ÷ 100
30 ÷ 100 = 0.3
0.3 x 220 = 66
66 - 51 = 11
I saw 8 sunflowers, 7 roses, and 2 lavender when I was walking outside.I collected them and decided to arrange them. How many different arrangements can I create?
Answer:
8 with a remander of 1
Step-by-step explanation:
Midory had 0.0085 pounds of chocolate. What is this equation written in scientific notation?
Answer in scientific notation: 8.3x10^-3
what is this value? giving thanks and marking brainliest :)
Answer:
x = 23 degress
Step-by-step explanation:
(x + 2) + 65 = 90
x + 2 = 25
x = 23 degress
I need help on this plz and thank you
Answer:
c.
Step-by-step explanation:
because probability is normally in fraction or decimal
8y =120 find the solution to the equation
Answer:
15
Step-by-step explanation:
Answer:
y=15
Step-by-step explanation:
8y=120/8
y=15
Find the measure of the exterior <1.
A. 35°
B. 95°
C. 85
D. 120°
Answer: the answer is c for me I took the test
Step-by-step explanation:
Took the test
I need help please help me
Answer:
1: 11/14 2: 1 5/12 3: 1 1/20 4: 7/10 5: 3/4 6: 1 2/9 7: 1 8: 1/8 9: 3/5 10: 23/24
Which of the following describes theoretical probability?
Answer:
Roll of a Die
Step-by-step explanation:
Evaluate the power: (−3)^4
A. 81
B. -81
C. 243
D. -331
Answer:
The answer is 81.
Step-by-step explanation:
Since the power of 4 is even, the result will be positive.
[tex] {3}^{4} [/tex]
Simplify.
[tex]81[/tex]
hence, the answer is Option A) 81.
What is equivalent to 9?
A:2^3
B:3^-2
C:2^-3
D:3^2
Dana takes a sheet of paper and cuts from one corner to the opposite corner, making two triangles. If the piece of paper is 8 inches long and 5 inches wide, how long is the diagonal cut that Dana made? If necessary, round to the nearest tenth.
Answer:
9.4 inches
Step-by-step explanation:
The triangle formed is aright angled triangle with the right angle between the length and width of the paper cut hence the diagonal represents the hypotenuse side.
Recall that Pythagoras theorem states that
a^2 + b^2 = c^2 where c is the hypotenuse side and a, b are the opposite and adjacent sides
Hence
8^2 + 5^2 = c^2
c^2 = 64 + 25
= 89
Finding the roots of both sides
c = 9.433981132
To the nearest tenth
c = 9.4 inches
what are the values of a, b, and c in the quadratic equation -2x² + 4x - 3 =0?
Answer:
x=1
Step-by-step explanation:
I believe that's the answer sorry if I'm wrong
Given the exponential decay function
y = 39, 752 * (0.925) ^ t which represents the population of a town after t years, what is the rate of decay written as a percentage?
A. 0.073
B. 0.925
C. 7.5
D. 92.5
Steve flipped a coin 10 times and recorded his results in this chart.
Part A: What is the THEORETICAL probability of the coin landing heads up?
Answer:
Step-by-step explanation:
actual over theoretical times 100 equals ur percentage
HELP ASAP!!!!!!!!! what is the measure of angle x?
Step-by-step explanation:
x + 149° = 180° {Being linear pair }
x = 180° - 149°
x = 31°
Hope it will help :)❤
Answer:
180-149 = 31
that's right
The circumference of a circle is 46.472 millimeters. What is the circle's radius?
Answer:
r≈7.4
Step-by-step explanation:
C=2πr
Solving forr
r=C
2π=46.47
2·π≈7.39625
Hope this helps! Happy friday!
How does the graph of the function g(x) = 2^x- 3 differ from the graph of f(x) = 2^x?
A. It is moved up 3 unit.
B. It is moved down 3 unit.
c. It is moved right 3 unit
D. It is moved left 3 unit.
The New Horizons satellite is currently travelling at a speed of 35,000 mph (miles per hour). How many miles
can it travel in one day?
Simplify the expression. Write your answer as a power.
6^7•6^10 divided by 6^4•6^3
Answer:
[tex] {6}^{10} [/tex]
Step-by-step explanation:
[tex] \frac{6^7•6^{10}}{6^4•6^3} \\ \\ = \frac{6^7•6^{10}}{ {6}^{4 + 3} } \\ \\ = \frac{ \cancel{6^7}•6^{10}}{ \cancel{6^7}} \\ \\ = {6}^{10} [/tex]
The triangular pyramid has identical equilateral triangles as its faces. Find the surface area of the pyramid.
Answer: B: 140.4
Step-by-step explanation: