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3 years ago

Is 5 a solution to the equation 3x + 1 equals 7

Mathematics

1 answer:

Shkiper50 [21]3 years ago

3 0

Answer:

no. I think its 2

Step-by-step explanation:

3x+1=7

3x=7-1

3x=6

x=2

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Please Answer!!!!

ExtremeBDS [4]

First mug holds the most

Solution:

Given that,

You are choosing between two mugs

The volume of cylinder is given as:

$V = \pi r^2h$

Where,

r is the radius and h is the height

One has a base that is 5.5 inches in diameter and a height of 3 inches

$radius = \frac{diameter}{2}$

Therefore,

$r = \frac{5.5}{2}\\\\r = 2.75$

Also, h = 3 inches

Thus volume of cylinder is given as:

$V = \pi \times 2.75^2 \times 3\\\\V = 3.14 \times 22.6875\\\\V = 71.23875 \approx 71.24$

Thus first mug holds 71.24 cubic inches

The other has a base of 4.5 inches in diameter and a height of 4 inches

$Radius = \frac{4.5}{2}\\\\r = 2.25$

h = 4 inches

Therefore,

$V = 3.14 \times 2.25^2 \times 4\\\\V = 3.14 \times 20.25\\\\V = 63.585$

Thus the second mug holds 63.585 cubic inches

On comparing, volume of both mugs,

Volume of first mug > volume of second mug

First mug holds the most

8 0

4 years ago

The gable end of the roof shown is divided in half by a vertical brace. Find the distance h (in ft) from an eave to the peak. 41

nlexa [21]

Answer:

h = 9 ft

Step-by-step explanation:

Assume the diagram is like the one below.

∆ABD is a right triangle.

We can use Pythagoras' Theorem to find the height h.

$\begin{array}{rcl}h^{2} + 40^{2} & = & 41^{2}\\h^{2} + 1600 & = & 1681\\h^{2} & = & 1681 - 1600\\& = &81\\h& = & \sqrt{81}\\&=& \mathbf{9}\end{array}\\\text{The height of the gable is $\large \boxed{\textbf{9 ft}}$}$

8 0

3 years ago

7800 nm + 95 pm in scientific notation

azamat

$7800 nm+95pm=7800* 10^{-9} +95* 10^{-12}$
$=7800000* x^{-12} +95* 10^{-12} =7800095* 10^{-12} =7.800095* 10^{-6}$

3 0

3 years ago

The sum of three integers is 211. The sum of the first and second integer exceeds the third by 39. The third interference is 23

finlep [7]

Answer:

A= 109 B= 16 C=86

Step-by-step explanation:

Write an equation for each statement:

"The sum of three integers is 211."

a + b + c = 211

"The sum of the first an second integers exceeds the third by 39."

a + b = c + 39

a + b - c = 39

"The third integer is 23 less than the first."

c = a - 23:

Subtract the 2nd equation from the 1st equation

a + b + c = 211

a + b - c = 39

---------------subtraction eliminates a and b, find c

2c = 172

c = 86:

Find a using the 3rd equation

86 = a - 23

86 + 23 = a

a = 109

Find b using the 1st equation

109 + b +86 = 211

b = 211 - 195

b = 16

4 0

4 years ago

30 POINTS HURRY will give brainliest

coldgirl [10]

Answer:

(1,4) IS THE ANSWER. I 100% believe that's the answer

Step-by-step explanation:

I can't explain it. (Next time when you get the same kind of question just look for a clear white paper. Cut it and make sure it's the size as the graph. Then put it on the computer screen then trace the shape that's on the graph and label the points like how they're labeled in your graph. After that, as the paper is one the screen of your computer, place a pencil or a pen on the paper and make sure it's aligned in the center of the graph. Press the pencil or pen a bit hard so the paper won't slide or fall out. After that rotate the paper to the ___degrees that's stated in the question. If the rotation is clockwise go clockwise. If the rotation is counterclockwise go counterclockwise. After that you'll get the answers.)

7 0

3 years ago

Is 5 a solution to the equation 3x + 1 equals 7​

Is 5 a solution to the equation 3x + 1 equals 7