MATHEMATICS HIGH SCHOOL

X = -3 + 5y - 6 for y

Answers

Answer 1

Answer:

Answer:

y = 1/5x + 9/5.

Step-by-step explanation:

x = -3 + 5y - 6

5y - 3 - 6 = x

5y - 9 = x

5y = x + 9

y = 1/5x + 9/5.

Hope this helps!

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PLEASE HELP I WILL GIVE EXTRA POINTS AND BRAINALIST to the first person
The lcm of a set of numbers is equal to one of the numbers in the set.

Please help to answer ASAP

Answers

The biker wants to sell a bike for $600 post mark up. You are trying to figure out the retail price as the store owner so that after the 55% mark up, the sale price is $600.

So to do so, take 600÷1.55 = $387.10.

a fast food restaurant sells small soft drinks for .99, medium soft drinks for $1.09, and large drinks for $1.29. during the lunch time rush, mark sold 65 drinks for a total of $ 70.55. the number of small and large drinks combined were 5 fewer than the number of medium drinks. how many drinks of each size were sold

Answers

Answer: small soft drinks= 21

Medium soft drinks = 35

Large drinks = 9

Step-by-step explanation:

The ratio of the radii of two circles is 3:7. What is the ratio of their circumferences? A. 1:1 B. 3:7 C. 3:14π D. 6π:7 E. 9:49

Answers

Hey there!!

The ratio radius is given as 3:7

... Let's take the first circle's radius as 3 and the radius of the second's circle as 7.

The formula for the circumference as 2π(radius)

The circumference of the first circle as 2π(3)

... 6π

The circumference of the second circle as 2π(7)

... 14π

Ratio = 6π:14π

... 3:7

Hence, the answer would be option (B)

Hope my answer helps!

Final answer:

The ratio of the circumferences of two circles is the same as the ratio of their radii. In this case, where the ratio of the radii is 3:7, the ratio of their circumferences will also be 3:7.

Explanation:

The ratio of the circumferences of two circles is equal to the ratio of their radii assuming all measurements are in the same units. This relationship is due to the formula for the circumference of a circle, C=2πr, where C is the circumference and r is the radius. Seeing this formula, we can ascertain that if we increase the radius, we increase the circumference by the same factor. Therefore, if the ratio of the radii of two circles is 3:7, the ratio of their circumferences will thereon also be 3:7.

Learn more about Circumference ratio here:

brainly.com/question/35438080

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Twice the sum of a number and three

Answers

the answer will be 2(x+3)

∠C and ∠D are vertical angles with m∠C=−2x+90 and m∠D=x−30.

What is m∠D
?

Answers

As they are vertical angles, their magnitude will be equal.
-2x+90 = x-30
2x+x = 90+30
3x = 120
x = 120/3
x = 40

Now, m∠D = x-30 = 40-30 = 10

So, Your Final Answer would be 10 degrees.

Hope this helps!

Vertical angle are equal:
m∠C = m∠D
−2x+90 = x−30
Add 2x to both sides:
90 = 3x - 30
Add 30 to both side:
120 = 3x
Divide both sides by 3:
x = 40
Plugging in:
m∠D=x−30 = 40-30 = 10

The answer is m∠D = 10

If you divided 48 objects into sets of 7, how many sets of 7 could you make, and how many are left over?