Mathematics High School

1) 15 = 5(x +2 ) 2) 5n + 34 = -2(1-7n)

n=
x=

Ill mark brainliest if yall help me and ill make it 20 points

Answers

Answer 1
1) 15 = 5(x + 2)
15 = 5x + 10
15 - 10 = 5x + 10 - 10
5 = 5x
5/5 = 5x/5
1 = x

2) 5n + 34 = -21(1-7n)
5n + 34 = -21 + 147n
5n + 34 = -21 + 147n
5n - 147n + 34 = -21 + 147n - 147n
-142n + 34 = -21
-142n + 34 - 34 = -21 - 34
-142n = -55
-142n/-142 = -55/-142
n = 55/142

Related Questions

*EXTRA PTS* answer these pls :)

Answers

Answer:

3)x=7,y=-2

Step-by-step explanation:

Answer:

3, (7, -2)

4, no solution

Step-by-step explanation:

Please help!!!
Which quadrant is -3,-3 located on a coordinate plane?
Quadrant 1
Quadrant 2
Quadrant 3
Quadrant 4

Answers

Answer:

Quadrant 3

Step-by-step explanation:

Helpppp plssssss: ))))

Answers

Answer:

C

Step-by-step explanation:

Since its a filled in circle it also includes people that are 48 inches tall to ride.

A) are un număr de 6 vârfuri, 9 muchii, 5 feţe. b) bazele prismei sunt ......................................................................... c) muchiile laterale sunt .......................................... Pe planele bazelor. 2) Pentru o prismă triunghiulară regulată cu latura bazei de 6 cm şi înălţimea de 43cm: a) suma lungimilor tuturor muchiilor este de .................. Cm; b) aria bazei este de ......... Cm2; c) aria laterală este de ......... Cm2; d) aria totală este de ......... Cm2; e) volumul este de ......... Cm3.

Answers

Answer:

A

Step-by-step explanation:

There is a total of 45 playoff games over c days. Write the expression of the number of playoff games happening each day.

Answers

Answer:

[tex]\frac{45}{c}[/tex]

Step-by-step explanation:

Playoff games played = 45

Number of days taken for the playoff games = c days

Number of playoff games played in one day = [tex]\frac{\text{Number of games played}}{\text{Total number of days}}[/tex]

= [tex]\frac{45}{c}[/tex]

Therefore, expression for the number of playoff games played in a day = [tex]\frac{45}{c}[/tex]

Julio runs 4 miles each time that he goes running. If he goes running 7 times a week, how many miles does he run total in one week?

Answers

Answer:

He runs 28 Miles every week!

Step-by-step explanation:

(The week is 7 days long)

1st DAY = 4M

2nd DAY = 4M

3rd DAY = 4M

4th DAY = 4M

5th DAY = 4M

6th DAY = 4M

7th DAY = 4M

(The M next to the 4 means miles you don't have to include it in your answer on your homework!)

4 + 4 + 4 + 4 + 4 + 4 + 4 = 28

OR

4 x 7 = 28

~ LadyBrain

20 points for correct answer

Answers

Answer:

0.167 is rational

2/6 is rational and the other two is irrational

:)

Step-by-step explanation:

Some parents will drive 17 children to summer camp. Each parent can fit 4 children in a car.
What is the fewest number of parents needed to drive all the children?

Answers

Answer:

5

Step-by-step explanation:

Find a polynomial f(x) of degree 3 with real coefficients and the following zeros. -2,- 2+i. ​

Answers

Answer:

f(x) = x^3 + 2x^2 + x + 2

Step-by-step explanation:

If -2 + i is a zero, then -2 - i must also be a zero.

These zeros are -2, -2 + i and -2 - i, and the corresponding factors of the polynomail f(x) are (x + 2), (x + 2 - i) and (x + 2 + i).

(x + 2 - i) and (x + 2 + i) multiplied together becomes x^2 + 1.

Multiplying this result by the 3rd and last factor, (x + 2), we get

(x^2 + 1)(x + 2) = x^3 + 2x^2 + x + 2

Check, using synthetic division.  What are the factors of x^3 + 2x^2 + x + 2?

-2   /   1    2    1    2  

              -2   -2   -2

     -----------------------

         1      0    -1    0                  Since the remainder is zero, we know that

                                                    (x + 2) is a factor and -2 is a root.

When calculating total wall length, do you include the lengths of windows and doors? Or exclude them?

Answers

You calculate wall-length like this.

Measure the length of each wall including doors and windows. Find the total square feet of the wall(s) by multiplying ceiling height by total wall length. Subtract areas that will not be covered.

4. MN has an equation of 2x - y = 3. Which of the following is the equation of a line
perpendicular to MN and passes through the point (4,3)?
A.
1
y = --X-5
2
C, y = -x-
2
B.
y = -2x-5
D. y = -x + 5
2

Answers

I think the answer is C

Which list of numbers is ordered from greatest to least?
A. –2 1/5, 2 1/4, 2.23, –2
B. 2 1/4, 2.23, –2, –2 1/5
C. –2, –2 1/5, 2 1/4, 2.23
D. –2 1/5, –2, 2.23, 2 1/4

Answers

Answer: B

Step-by-step explanation:

2 1/4 in decimal form: 2.25

-2 1/5 in decimal form: 2.20

B converted into decimals: 2.25, 2.23, -2, -2.20

find the slope and y intercept form equation from the table ​

Answers

Answer:

y=x+5 or y=1x+5

Step-by-step explanation:

i hope this helps :)

A car uses 1 liter of gas every 12 kilometers. How many meters can the car travel on 3 liters of gas? 36 meters 3,600 meters 360 meters 36,000 meters​

Answers

Answer:

36,000 meters. 12km= 12,000m multiply by 3l of gas.

Step-by-step explanation:

The car will travel 36000 meters using 3 liters of gas as per linear equation.

What is a linear equation?

"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, 'A' is a coefficient and 'B' is constant".

Given, a car uses 1 liter of gas every 12 kilometers.

Therefore, using 3 liters of gas, the car will go

= 3 × 36 kilometers

= 36 kilometers

= 36000 meters

With 3 liters of gas, the car will travel 36000 meters.

Learn more about a linear equation here: https://brainly.com/question/18840245

#SPJ2

Ava has $400 on her credit card. She bought a laptop for $315, and decided to spend the rest on shirts. The unit price of shirts which are on sale is $5. Part A: Enter an inequality which represents the maximum number of shirts, s, Ava can buy. Part B: What is the maximum number of shirts Ava can buy?​

Answers

Answer:

A is 805i tink and B is for sure 17

Step-by-step explanation:

loolllllllll i neeeddd helpppp asapppppppp

Answers

The median is 4 and the range is 5 the average should be 4.5

The median is where the middle is so if you count on either side until you get to the middle you have the median. The average is all the numbers added up divided by the number of numbers ( you might want to check me incase I typed it in wrong on my calculator. The range is just the highest- the lowest:)
Hope this helps

I need help solve this problem please

Answers

Answer:

X=5

15x=75

Step-by-step explanation:

help plsssssss !!!!!!

Answers

Answer:

936

Step-by-step explanation:

What is the length of the arc by a central angle of 85 degrees and a radius of 8cm to the nearest tenth of a cm?

Answers

9514 1404 393

Answer:

  11.9 cm

Step-by-step explanation:

Arc length is given by ...

  s = rθ . . . . . . θ is the central angle in radians

Your central angle is 85°, so is (85/180)π radians = 17/36π radians.

Then the arc length is ...

  s = (8 cm)(17/36π) ≈ 11.9 cm

The length of the 85° arc is about 11.9 cm.

Kevin plants 11 packages of vegetable seeds in a community garden. Each package costs ​$1.64 with tax. What is the total cost of the​ seeds?
PLEASE HELP FAST!!

Answers

$18.04

Easy math. Just multiply 11 by $1.64

A18.04 all you have to do is multiply the 2 numbers

Can someone answer this soon please

Answers

Answer:

the last one i think

Step-by-step explanation:

Two parallel lines are cut by a transversal. What is the measure of 26?
A. 180°
B. 90°
C. 123°
D. 57°

Answers

your answer will be option D.
Step-by-step explanation:
123 + x = 180
x = 180 -123
x = 57

Answer:

57

Step-by-step explanation:

1+2=180

123+2=180

2=180-123

2=57

2=6=57 ( because 2 and 6 are 2 isotopic angles)

In Phoenix, Arizona, the average temperature is 85 degrees Fahrenheit or higher during 25% of the year. During about how many weeks of the year is the average temperature below 85 degrees Fahrenheit?

Answers

Answer: 39 weeks

Step-by-step explanation:

Given

The average temperature is [tex]85^{\circ}F[/tex] or higher

A year has 52 weeks

It is given 25% of the time-temperature is above [tex]85^{\circ}F[/tex]

So, in the remaining 75% of the weeks, the average temperature is less than [tex]85^{\circ}F[/tex]

No of weeks can be determined by

[tex]\Rightarrow 75\%\ \text{of}\ 52\\\\\Rightarrow \dfrac{75}{100}\times 52=39\ \text{weeks}[/tex]

10, 16, 18, 20, 20, 21, 24, 25,
Q2 (median):
Q1:
Q3:
Interquartile Range (IQR): Q3-Q1 -

Answers

Answer:

Q1 --> 17

Q2 --> 20

Q3 --> 22.5

Interquartile

Range IQR 5.5

Step-by-step explanation:

Step 1

We rearrange the given data set

10, 16, 18, 20, 20, 21, 24, 25

Q2 (median):

Q1:

Q3:

Interquartile Range (IQR): Q3-Q1 -

Write the number in 2 equivalent forms as a​ fraction, decimal, or percent.
0.75

What is the equivalent​ fraction?

Answers

Answer:

=0.75

=3/4

=75%

Step-by-step explanation:

0.75 is 75% as a percentage,

And 3/4 as a fraction.

Write 3.1415×106 in standard notation

Answers

Answer:

332.999

Step-by-step explanation:

juice wrld

What is a correct name for the angle shown? R S T O LE O ZS O LEITE O LEFT​

Answers

Answer:

RTS.

Step-by-step explanation:

This is an obtuse angle.

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:

A

Step-by-step explanation:

PLEASE HELP. I will mark branliest

Answers

Answer:

28

Step-by-step explanation:

1-point free throw 2-point field goal he made 35 shots he scored 62 points how many of each shot does he make in 1 minute write the two equations for the problem

Answers

Answer:

x + y = 35  equation 1

x + 2y = 62  equation 2

He made 8 1 point free throw

He made 27 2 point field goal

Step-by-step explanation:

let x = 1 point free throw

y = 2 point field goal

two equations can be derived from the question

x + y = 35  equation 1

x + 2y = 62  equation 2

Subtract equation 1 from 2

y = 27

Substitute for x in equation 1

x = 35 - 27 = 8

He made 8 1 point free throw

He made 27 2 point field goal

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