The sum of three times a number and seven is equal to the difference of the number and fifteen. Find the number. Round your answer to the nearest integer, if necessary.

Answers

Answer 1

Answer:

2

Step-by-step explanation:

Let the number be x

3x + 7=15-x

4x = 8

x=2


Related Questions

Question is in the photo.

Answers

2^-1(5)^3(7)^4/2^6(5)^-3(7)^3= (5)^6(7)/2^7

Workout the picture below

Answers

Answer:

4 times

Step-by-step explanation:

Area of circle A

[tex]\pi \times {r}^{2} = area \: of \: a \: circle \\ \pi = 3.14 \\ 3.14 \times {8}^{2} \\ 3.14 \times 64 = 200.96 \: {cm}^{2} [/tex]

Area of circle B

[tex]\pi\times 4 (because \: radius \: is \: the \: half \: of \: diameter) \\ 3.14 \times 4 square = 50.24\: {cm}^{2} [/tex]

How many times larger is the area of circle A than circle B

[tex]200.96 \div 50.24 = 4[/tex]

therefore circle A is 4 times larger than circle B in accordance with its area

The perimeter of a triangle is 17x−5 units. One side is 3x+5 units and another is 8x−3 units. How many units long is the third side?

Answers

Answer:

17x−5 =85       3x+5 =15      8x-3= -24 here you can use this to find your awnser

Step-by-step explanation:

What is Prefix? ︎︎ ︎︎ ︎︎ ︎︎​

Answers

a word, letter, or number placed before another.

simplify the following surd expressions a) 9√3 - 4√3 + √5 + 2√5 b) 10√2 + 4√7 - 6√2

Answers

A) 5√3 + 3√5
B) 4√2 + 4√7

Answer:

[tex]a)\:5\sqrt{3}+3\sqrt{5}[/tex]

[tex]b)-6\sqrt{2}+4\sqrt{7}[/tex]

Step-by-step explanation:

[tex]a)\:9\sqrt{3}-4\sqrt{3}+\sqrt{5}+2\sqrt{5}[/tex]

We need to combine like terms:

[tex]9\sqrt{3}-4\sqrt{3}[/tex]

[tex]=5\sqrt{3}[/tex]

[tex]\sqrt{5}+2\sqrt{5}[/tex]

[tex]=3\sqrt{5}[/tex]

[tex]5\sqrt{3}+3\sqrt{5}[/tex]

__________________

Combine like terms:

[tex]b)\:0\times \sqrt{2}+4\sqrt{7}-6\sqrt{2}[/tex]

[tex]0\cdot \sqrt{2}-6\sqrt{2}[/tex]

[tex]=-6\sqrt{2}[/tex]

[tex]-6\sqrt{2}+4\sqrt{7}[/tex]

____________________

Hmm anyone can solve this is cool, (and will earn a peppermint)


Bill tax: $56
Your Money: $16

(What’s the decrease of money you paid for your tax)

Answers

Prob $56-16=40, so $40 was lost so

the answer is 40..

(Sorry if it’s wrong

solve the inequality. 1/2x > 7​

Answers

Answer:

x>14

Step-by-step explanation:

Answer:

[tex] \frac{1}{2} x > 7[/tex]

[tex]x > 7 \div \frac{1}{2} [/tex]

[tex]x > 7 \times 2[/tex]

[tex]x > 14[/tex]

Solve for x please and thank you

Answers

Answer:

x = 3

Step-by-step explanation:

40+ 46x + 2 = 180 degrees

46x = 180 - 42

x = 3

Answer:

46x+2°+40°=180° (adj angles on a str line)

46x+42°=180°

46x=180°-42°

=138°

x=138÷46

=3

5/3y=-(x-5) the slope intercept

Answers

Answer:

y = - [tex]\frac{3}{5}[/tex] x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

[tex]\frac{5}{3}[/tex] y = - (x - 5) ← distribute parenthesis

[tex]\frac{5}{3}[/tex] y = - x + 5 ( multiply through by 3 to clear the fraction )

5y = - 3x + 15 ( divide terms by 5 )

y = - [tex]\frac{3}{5}[/tex] x + 3 ← in slope- intercept form

Rational numbers that are not intergers

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Answer:

This includes numbers that are not whole numbers (+ or -). For example, 6.79, 20,193.917017, 4/25, etc.

find the y intercept
y = 3/4x - 4

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It is 8+783 to the 2 power
the y-intercept is the point on the graph where it crosses the y-axis, and has coordinates (0, b). It is also the value of y when x = 0.

To find the y-intercept, set x = 0:

y = -3/4(0) - 4

y = 0 - 4

y = -4.

Therefore, the y-intercept is (0, -4), or -4.

How many cups of water are needed for 12 cups of flour?

Answers

2 CUPS OF WATER FOR 3 CUPS OF FLOUR

SO 1 CUP = 1.5 water

SO MULTIPLY AND FIND THE ANSWER

PLEASE HELP RN, I need a lot of help on this very hard math homework

Answers

Answer:

[tex]6^{2}[/tex]

Step-by-step explanation:

Use power rules.

[tex]\frac{6^{7} }{6^{5} }[/tex]

[tex]6^{7-5}[/tex]

[tex]6^{2}[/tex]

Another way of solving in which the 6s on the numerator cancel with the 6s on the denominator:

[tex]\frac{6*6*6*6*6*6*6}{6*6*6*6*6}[/tex]

[tex]\frac{6*6}{1}[/tex]

6*6

[tex]6^{2}[/tex]

Find the length of the third side. If necessary, write in simplest radical form.

Answers

Answer: [tex]3\sqrt{3[/tex]

Step-by-step explanation: use pythagorean theorem to solve this. which is a^2 + b^2 = c^2

lets say b=3 and c=6. plug this into the equation.  (6)^2 - (3)^2 + = 36 - 9 which is 27 = c^2. to get c from c^2, square root the c^2 value

the square root of 27 is [tex]3\sqrt{3[/tex] in simplest radical form

Which of the following is true?

Answers

Answer: C

Step-by-step explanation: I hope its right mark me brainliest plss

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct choice is :

FG is an altitude of Triangle EFH

The slope of the line is 0. It passes through the point (-3,4). Identify two other points on the line. Justify you answer

Answers

Answer:

Two other points: (2, 4) (6, 4)

Step-by-step explanation:

A line with a slope = 0 is a horizontal line [with a y-intercept of (0, b)], given by the linear equation, y = 4.  This means that the y-coordinate will always equal to 4, regardless of its corresponding x-coordinate. Basically, we could choose any x-coordinate to pair with the y-coordinate of 4.

I chose the ordered pairs, (2, 4) and (6, 4).

Attached is a screenshot of the graphed linear equation, y = 4.        

Need help ASAP! Directions in picture;)

Answers

Answer:

x=94/5

Step-by-step explanation:

10x-8=180

10x=188

x=188/180

x=94/5

How many liters of a 50% acid solution must be mixed with a 30% acid solution to get 180 L of a 40% acid solution?
____ liters of a 50% acid solution must be used.

Answers

Answer: 90

Step-by-step explanation:

Please help me with this from 1 to 10

Answers

Answer:

2. makes

3. had wanted

4. are deciding, get

5. are going

6. ate

7. will be traveling

8. are

9. asked

10. lose

Answer:

2. Wanted

3. Wants

4. Decides and Get

5. Went

6. Ate

7. Are Traveling

8. Are

9. Asks

10. Lost

Step-by-step explanation: What grade are you in??

to what power must you raise the expression 7^1/2 to get 7 as the result?

Answers

Answer:

2

Step-by-step explanation:

(7^1/2)^2=7^(1/2*2)=7

5. Three of the vertices of rectangle ABCD are given. Find the coordinates
of point D. Find the value of the variable.
A(3,6), B(6, 7), C(6,3), D(x, y)

Answers

The answer is (7,6)
The answer is (7,6)

⚠️⚠️Please help⚠️⚠️ Pip and Ali share S785 in the ratio Pip:Ali = 4:1.

Work out Pip's share.

Answers

Answer:   $628

==========================================================

Work Shown:

x = Ali's share

4x = Pip's share, because it is four times bigger due to the ratio 4:1

x+4x = 5x = total amount of money = 785

5x = 785

x = 785/5

x = 157 dollars is Ali's share

4x = 4*157 = 628 dollars is Pip's share

Note that 157+628 = 785 to help confirm the answer.

Solve the proportion. If necessary, round to the nearest hundredth.

Answers

Answer:

......the right answer is 12

Find the distance between (-6,-1) and (4,-5)

Answers

2,889 mi

Distance from South Atlantic Ocean to Gulf of Guinea

Given: 5n - 42 = 12n; Prove: n = -6
Statements and reasons

Answers

Answer:

yes n is -6

Step-by-step explanation:

b/c 5(-6)-42=12(-6)

-30-42=-72

-72=-72

115 - 12
4
-21 + 9
2) Simplify:
1-2811
A. -24
3
B.
4
C.
3
4
1
D. 2
4

Answers

Answer:

by my calculator I got 2.25

What is the value of 7r + 6(r + 2s) when r = 4 and s = 2?

Answers

Answer:

76

Step-by-step explanation:

7(4)+6(4+2(2)

28+6(8)

28+48 it gives 76

HELP, PLEASE HELP ME

Answers

8x=10
8(1)=8
8(1.5)=12
8(1.25)=10
X=1.25
The scale factor is 1.25 or 5/4

solve this table
will give brainliest​

Answers

Answer:

For linear function, top to bottom, it's:

f(x)

b

a

x

For mathematical meaning, top to bottom, it's:

output value of an equation

y-intercept

slope or common difference

input value of an equation

Step-by-step explanation:

Convert the following.
15, 000 m² =________hectare
2.5 hectares =_______m²​

Answers

Answer:

15,000 m²= 1.5 hectares

2.5 hectares= 25, 000 m²

Step-by-step explanation:

Sana makatulong

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