Someone please help I don't understand this

Answer:

EEEEEEEEEEEE

Step-by-step explanation:

Answer:

yasssssssssss♡´･ᴗ･`♡. (^.^)

A system of equations in​ slope-intercept form can be solved by,

D. Graphing and substitution are appropriate to use if the answer involves integer values. If the answer involves values that are not​ integers, the substitution would be more efficient because an exact answer can be obtained. It can be difficult to read graphs if the intersection point does not have integer values so this would be an inefficient method to solve with.

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given, a system of equations in​ slope-intercept form y₁ = m₁x₁ + b₁ and

y₂ = m₂x₂ + b₂.

We can use both substitution and graphing depending on the numerical values of the variables.

If the solution involves integer numbers, graphing and substitution are the proper methods to utilize. Substitution would be more effective since an accurate solution may be reached if the solution involves values that are not integers. If the intersection point doesn't have integer values, it can be challenging to understand graphs, so using this approach to solve would be ineffective.

learn more about lines and slopes here :

https://brainly.com/question/3605446

#SPJ2

Answer:

120/100 a = 80/100 b

12/10 a = 8/10 b

10 (12/10) a = 10 (8/10) b

12a= 8b

3a= 2b

a+b in terms of a

b = 3/2×a

a+ 3/2×a = 5/2×a

a+b in terms of b

a = 2/3×b

b + 2/3.b = 5/3×b

Answer:

67.4%

Step-by-step explanation:

246/365*100

Answer:

105.84 cm²

129 ft²

Step-by-step explanation:

please mark me as brainliest

Answer:20

Step-by-step explanation: I'm good at math and i know the answers

Answer:

$4

Step-by-step explanation:

Because with no distance traveled, the fixed amount charged would be $4. For every mile traveled, there is an additional $5. So your correct answer is $4.

Answer:

it wil be 96

Step-by-step explanation:

85 88 and 97 are all numbers that contributet to the exponentialalty ogf this number 96

Answer:

the answer is 96

Step-by-step explanation:

Answer:

C is the answer

Step-by-step explanation:

1. distribute (multiply) -6 to 4

2. than -r

3. answer would be -24 - 6 = 30

-6r shouldn't be positive. It should stay negative

Answer:

Sarah’s neighbor offers to pay her $5 for every shark tooth she finds on the beach. After collecting only three shark’s teeth, Sarah decides to share the opportunity with her friend John. Sarah can find shark teeth twice as fast as John, but she can earn even more money with his help.

Sarah can use the expression 5(2j + 3 + j) to represent the amount of money they can earn.

Part 1: Writing Expressions

Q1. Write an expression that looks like Sarah’s expression: 5(2j + 3 + j). Replace the coefficients so that your expression is not equivalent. You may use any number that you choose to replace the coefficients. Be sure to leave the variables the same. For example, 8(3j + 7 + 3j) looks like Sarah’s expression but is not equivalent.

25(10j + 18 + 5j)

Your expression is good.

Q2. Translate the new algebraic expression you created in Question 1 to a verbal expression.  

Skuttle offered to pay his sister Izzy $25 for every four leaf clover she finds in the woods. Izzy finds 18 clovers but decides to get Roxy’s help. Izzy finds clovers twice as fast as Roxy but they will over all make more money together.

Your verbal expression is good. It refrects your chosen equation.

Part 2: Writing Equivalent Expressions

Q3. Use your knowledge of the mathematical properties to create two equivalent algebraic expressions for the algebraic expression you created in Question 1. Explain how you arrived at the equivalent expressions by showing all your steps and stating which properties you used.

Using commutative property of addition, the expression in question 1 can be rewritten as follows:

25(10j + 18 + 5j) = 25(10j + 5j + 18)

Using distributive property of multiplication over addition, the expression in question 1 can also be rewritten as follows:

25(10j + 18 + 5j) = 250j + 450 + 125j

Q 4. Use substitution to prove your algebraic expressions are equivalent. You may substitute any number for the variables you choose. Show all your work for complete credit.

Now we can subsitute, say 7 for j.

For the first expression, we have:

25(10j + 5j + 18) = 25(10(7) + 5(7) + 18)

= 25(70 + 35 + 18) = 25(123) = 3,075.

For the second expression, we have:

250j + 450 + 125j = 250(7) + 450 + 125(7) = 1,750 + 450 + 875 = 3,075.

Thus, we can see that both expressions are equivalent.

Part 3: Finish the Story

Q5. Write a few sentences to end Sarah’s story. How many shark teeth did she find? How many shark teeth did John find? How much money did they earn?

Sarah found 3 + 7 = 10 shark teeth.

John found 10 / 2 = 5 shark teeth.

The total money they earned is $5 x 15 = $75.

Step-by-step explanation:

Answer:

Step-by-step explanatioihhin:

Answer:

16 5/12 years old

Step-by-step explanation:

Just add them all together. You need to find the LCD for them to do that.

Hope this helps!

Answer:

67 degrees or 113 degrees.

Step-by-step explanation:

The other angle is 67 degrees because a complementary angle adds up to 90 degrees. It could also be 113 because that is 23 degrees more than a complementary angle.

Answer: p=0

Step-by-step explanation: Hope this help :D

Let's solve your equation step-by-step.

−1=p−1

Step 1: Flip the equation.

p−1=−1

Step 2: Add 1 to both sides.

p−1+1=−1+1

p=0

Answer:

If I did the math right p = 0 so -1 = 0 - 1

Step-by-step explanation:

The only way to get -1 by subtracting a number by 1 you would need 0.

0 - 1 = -1

Hope I helped!!!

Answer:

1: about 12min 2:yes 3: 55 4: 5

Step-by-step explanation: why do you ask

Answer:

a statistical question is one that we can answer using data

example: How much do 5 gorillas weigh at the zoo called wilderness?

Answer:

"How much do the animals at Fancy Farm weigh?"

Step-by-step explanation:

Answer:

13k

or

13 x k

Step-by-step explanation:

Answer: 1. 32x37.21 =1192

2. 120

3. 12

4. 24

Step-by-step explanation:

Answer:

x = -6/ -7/ -8/ -9/ -10/ -11...... every number less -5

Step-by-step explanation:

Answer:

A distance of 3,000 meters is approximately 1.86 miles or 3 kilometers.

Step-by-step explanation:

hope it HELPPS

Answer:

1.86 miles or 3 kilometers.

Answer:

[tex]155.43 in^3[/tex]

Step-by-step explanation:

base*hight

[tex]=> \pi r^2 = 3^2*\pi =9*3.14=28.26[/tex]

[tex]=> B*H=28.26*5.5=155.43\\[/tex]

Answer:

false

Step-by-step explanation:

Answer:

Gcf or Lcf, you didint state on question

Answer:

To help Its sales, the company should focus on producing Large

T-shirts. Approximately 80% of T-shirts the company

makes should be medium and large T-shirts to match the market preference. If the total number of T-shirts sold in a month is 45,000, 3,300

of these will likely be size small.

Step-by-step explanation:

In the survey, Large t-shirts are most frequently bought so they should be the primary focus if the company is trying to make more money.

To find the percentage of shirts that the medium and large shirts make up, first you find the total amount of shirts (11+37+83+19=150), then you will find how many mediuma and large shirts (37+83=120). Percentage is (120/150)*100=80%

To find the number of small shirts you can set up a proportion.

[tex]\frac{11}{150} =\frac{x}{45,000}[/tex], then cross multiply

150x=11*45,000

150x=495,000

x=3,300

Answer:

rectangle triangle trapezium

Step-by-step explanation:

rectangle =length×width(12×7=84)

triangle=1/2base×height(1/2×8×7=28)

trapezium=1/2sum of parallel lines ×height(1/2×(6+2)×7=28)

area of the rectangle subtract area of two trapeziums. (84-{28×2}=28)

Answer:

6 miles

Step-by-step explanation:

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