MATHEMATICS HIGH SCHOOL

What's the answer to this math problem 3x +2/5=7

Answers

Answer 1
Answer: We have:

3x+2/5=7

3x+2/5=35/5

3x=33/5

x=11/5

Thus, the answer is that x=11/5.

Related Questions

Write 5.2 as the quotient of two integers A...11/3B...21/5C...26/5D...51/10
Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(2x) in the interval [0, 2π]. so far I found f'(x)=2cos(2x)+2 cos(2x)=-1
if a right circular cone has a volume of 15 cubic ft and a radius of 3 ft, what is the height of the cone?
How much milk is in a can 8cm by 12cm<br />
When the sum of a number plus 3 is squared, it is 9 more than the sum of the number plus 2 when squared.

A movie rental store charges a membership fee of $10.00 plus $1.50 per movie rented. What is a possible domain that shows the cost to a member of renting movies?A. The domain is all integers.

B. The domain is all even integers.

C. The domain is all integers 0 or greater.

D. The domain is all integers 10 or greater.

Answers

The domain is all integers 10 or greater. This is because the working equation for the statement is movie renting = 10 + 1.5 x(movie renting). With that equation there is a minimum of 10.

You guys can help me plz idc if you explain

Answers

Y=Mx+b is the answer for 15 I think

An ice cream cone is filled with vanilla and chocolate ice cream at a ratio of 2:1. If the diameter of the cone is 2 inches and the height is 6 inches, what is the volume of vanilla ice cream in the cone? (round to nearest tenth)

Answers

volume of cone=(1/3)hpir^2

d/2=r
d=2
d/2=2/2=1=r
h=6

V=(1/3)6pi1^2
V=2pi in^3 is volume

ratio of 2:1

2+1=3
2pi=3 units
divide both sides by 3
2/3pi=1 unit

vanila=2 units
times 2/3pi by 2
4/3pi
aprox pi=3.141592
 4.188
round
4.2 in^3 of vanilla
An ice cream cone is filled with vanilla and chocolate ice cream at a ratio of 2:1. If the diameter of the cone is 2 inches and the height is 6 inches, what is the volume of vanilla ice cream in the cone? (round to nearest tenth) 
----
Total volume = pi*r^2*h = pi*1^2*6 = 6pi in^2
---------------------
Equation:
2x + x = 6pi

3x = 6pi
x = 2pi (chocolate volume)
2x = 4pi (vanilla volume)

A regular pentagon has a perimeter of 60 feet. How long is each side?5 feet
6 feet
10 feet
12 feet

Answers

Since all sides are equal in a pentagon, and there are 5 sides; 60/5 is equal is 12 so each side is 12 feet.
the answer is D 12 feet

You are visiting a Redwood tree forest and want to verify the height of one of the trees. You measure its shadow along the ground and use trig to calculate the height.The shadow measures 500 feet and you calculate the angle of elevation to be 35 degrees, This forms a right triangle.
a. What is the measure of the other acute angle?
b. What is the height of the tree?
c. You are standing at the end of the tree's shadow and want to take a picture of the tree but your camera can only focus at distance less than 500 feet. When you hold the camera to take the picture it is 5 feet above the ground. What is the distance from the end of the shadow to the top of the tree?
d. Can you take a clear picture of the top of the tree from where you are standing?
e. How many total tiles will be needed to complete the job?

Answers

Answer:

Step-by-step explanation:

given that You are visiting a Redwood tree forest and want to verify the height of one of the trees. You measure its shadow along the ground and use trig to calculate the height.

the  shadow measures 500 feet and you calculate the angle of elevation to be 35 degrees, This forms a right triangle.

a) Other acute angle is 90-35 = 55 degrees

b) Height of the tree = 500 tan 35 =350.104 feet

c) Here height would be reduced to 350.104 - 5 = 345.104 feet.

Hence distance adjusted= 354.104 cot 35=492.8596 feet.

d) Yes because this is less than 500 feet.

e) height of 5 feet itself is sufficient here

There are 2,100 bacteria in a circular petri dish. The dish has a radius of 40 millimeters. What is the approximate population density? Area of a circle =3.14r2

Answers

Answer: 0.42 bacteria/mm^2

Step-by-step explanation: Population density is population / area. First we solve for the area of the circle. A = pi•r^2. r = 40 mm. pi • 1600 = 5024mm^2. Divide the 2100 bacteria by 5024 and you get population density. 2,100/5024 = 0.42 (rounded to two decimal places)
Other Questions
Solve "P x 87 + 67 x 87 + (33 - P) x 87 = ?"
Simplify 7(B + 3) + 2B
Your video membership cost $14 per month for 10 video rentals. Each additional video rental is $2. Write in equation into variables that represent the cost of your video rentals.
-4p+(-6p) combine like terms to create an equivalent expression