-
Solve the system of equations – 2z – 2y = -24 and 3z – 2y = -33 by
combining the equations.
-
( 2z -2y =-24)
– 32 -2y =-33)
-
-
-22 -2y = -24
-32 -2y -33
0 - 0 Y=
You must answer all questions above in order to submit.
P

Answers

Answer 1

Answer:

z = -1.8, y = 10.2

Step-by-step explanation:

- 2z -2y = -24 (EQ 1)

3z - 2y = -33 (EQ 2)

Change one of the equations to it's opposite (Turning a negative number to a positive/or the other way around)

Let's target the equation that can leave us with the simplest question to solve

-2z + -2y = -24

-3z + 2y = 33

-5z = 9

(Dividing and switching the negative sign over)

z = -1.8

Plug in Z to solve for y.

-2(-1.8) - 2y = -24

3.6 - 2y = -24

-2y = -20.4

y = 10.4


Related Questions

Write an equation of the line with the given slope and y-intercept:
m = negative 5, b = 4
a.
y = negative 5 x + 4
b.
y = 5 x + 4
c.
y = negative 5 x minus 4
d.
y = 5 x minus 4

Answers

Answer:

y = negative 5 x + 4

Step-by-step explanation:

Hope it helps you in your learning process

There is a circle inscribed in an equilateral triangle, and there is another equilateral triangle inscribed in the circle. The ratio of the area of the larger triangle to the smaller triangle is:

Answers

Answer:

Assuming that the circle bissects the triangles equal sides at their midpoints, the ratio of the larger to smaller triangle should be close to 1/3

A solid box with height 20cm, width 10cm and length 80cm needs to be painted.
The paint costs £0.16 per cm2.
How much will it cost to paint the outside of the box?

Answers

Answer: is 832cm

Step-by-step explanation:

Question 16 of 25
What is the inverse of the function below?
fx) = x - 4
O A. f-1(x) = x- 4
O B. f- (x) =-X+4
O c. f-1(x) = x+4
O D. f-1(x) = -x- 4

Answers

C
First you -4 from x so you have to do the opposite which is to add 4

The inverse of the function is f ( x )⁻¹ = x + 4

What is a function rule?

The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

Given data ,

Let the function be represented as f ( x )

Now , the value of f ( x ) is

f ( x ) = x - 4   be equation (1)

On simplifying , we get

The inverse of the function is given by replacing x with y

So , the value of the function is

y = x - 4

x = y + 4

On interchanging , we get

f ( x )⁻¹ = x + 4

Hence , the inverse is f ( x )⁻¹ = x + 4

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A 30% discount is given on the cost of a $420 laptop. How much is the discount

Answers

Answer: $126

Step-by-step explanation: 30/100 × 420/1

When Ryan runs the 400 meter dash, his finishing times are normally distributed with a mean of 75 seconds and a standard deviation of 0.5 seconds. Using the empirical rule, determine the interval of times that represents the middle 68% of his finishing times in the 400 meter race.

Answers

The interval of times which represents the middle 68% of Ryan's finishing times in the 400 meter race, using the empirical rule, is 74.5 seconds to 75.5 seconds.

What is empirical rule?

According to the empirical rule, also known as 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95% and 99.7% of the values lies within one, two or three standard deviations of the mean of the distribution.

[tex]P(\mu - \sigma < X < \mu + \sigma) = 68\%\\P(\mu - 2\sigma < X < \mu + 2\sigma) = 95\%\\P(\mu - 3\sigma < X < \mu + 3\sigma) = 99.7\%[/tex]

Here we had  where mean of distribution of X is [tex]\mu[/tex]  and standard deviation from mean of distribution of X is [tex]\sigma[/tex].

When Ryan runs the 400 meter dash, his finishing times are normally distributed with a mean of 75 seconds and a standard deviation of 0.5 seconds.

The interval of times that represents the middle 68% of his finishing times in the 400 meter race is,

[tex]P(75 - 0.5 < X < 75 + 0.5) = 68\%\\P(74.5 < X < 75.5) = 68\%[/tex]

Thus. the interval of times which represents the middle 68% of Ryan's finishing times in the 400 meter race, using the empirical rule, is 74.5 seconds to 75.5 seconds.

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if the point (-1,-5) is reflected across the x - axis, what is the new location of the point

Answers

Answer: ( -1, 5 )

Step-by-step explanation: Reflection across the x axis only flips the sign of the y axis

The tax rate is 6.8% what is the tax on $9.95

Answers

Answer:

$10.60

Step-by-step explanation:

6.8% = .068

.068 x 9.95

0.64675

since this is money

$.65

$9.95 + $.65

$10.60

What is the area of the figure?

A figure can be broken into a rectangle and triangle. The rectangle has a base of 5 feet and height of one-third feet. The triangle has a base of 3 and two-thirds feet and height of 2 feet.
5One-third ft2
6 and two-thirds ft2
7 ft2
9 ft2

Answers

Answer:

Given a figure that is broken into a rectangle and triangle.

The dimensions of the rectangle are:

Base : 5 ft

Height : 1/3 ft

The dimensions of the triangle are :

Base : 3 upon 2/3 ft

Height : 2 ft

The area of the figure calculated below :-

Area of rectangle + Area of triangle

Area of rectangle + Area of triangleLB + 1/2BH

(5×1/3) + (1/3+3upon2/3×2)

The result is simplified below :-

5/3+11/3

5+11/3

16/3 ft

51/3 ft square.

The area of the figure is 5 and one third square feet.

Answer:

5 1/3

Step-by-step explanation:

State translation,reflection or rotation

(x, y) ——-> (x + 9, y + 2)

Answers

Answer:

Translation

Step-by-step explanation:

Translation as the x and y are both being moved over the plane.

after jill received her paycheck, she put $150.00 into a saving account. she spent $12.49 on a CD, $29.89 on a pair of jeans and $12.95 on dinner. She had $44.67 left. How much was Jill’s paycheck

Answers

Answer:

Jill had $250 in her paycheck

Step-by-step explanation:

150+12.49+28.89+12.95

+44.67=249 technically not 250 but its the closest answer.

camila is 4 years younger then her brother when camila was 7 how old was her brother

Answers

Answer:

He was 11

Step-by-step explanation:

if Camila was 4 years younger than her brother and she was seven. That means he is 4 years older than her. so 7+4=11

help brainless if right

Answers

Answer:

The boat is 26 mi far from dock .

Step-by-step explanation:

By using PGT

+ =

=> 10² + 24² = c²

=> 100 + 576 = c²

=> 676 = c²

=> √676 = c

=> 26 = c

Answer:

26 miles

Step-by-step explanation:

We can use Pythagorean's Theorem for right triangles which states that:

[tex]a^2+b^2=c^2[/tex]

The values 'a' and 'b' are the shorter sides of the triangle, while the value 'c' is the longest side of the triangle. We are given the two shorter sides 'a' and 'b', so let's now find 'c':

[tex](24mi)^2+(10mi)^2=c^2[/tex]

[tex]576mi^2+100mi^2=c^2[/tex]

[tex]c^2=676mi^2[/tex]

[tex]c=\sqrt{676mi^2}[/tex]

[tex]c=26mi[/tex]

24 There are 4 students running for president in the school election. The likelihood of
each student winning has been estimated by surveying a random sample of
students. The results of the survey are shown below.
Jocelyn
1
5
Melvin 1596
Sharon
3
10
Jayden 0.35
Which student is most likely to win?
A Jocelyn
B Melvin
C Sharon
D Jayden

Answers

Answer:

D

Step-by-step explanation:

1/5 = 20%

3/10 = 30%

15%<35%

30%<35%

20%<35%

in a linear equation, how many times will a line cross the x-axis and y-axis?
(a) 4
(b) 2
(c) 1
(d) 3​

Answers

Answer:

1 time they will only cross 1 time

Answer:

one, in a linear equation a line will only cross the x-axis and y-axis once.

Two equations are given below: m 4n = 8 m = n − 2 what is the solution to the set of equations in the form (m, n)? (4, 6) (2, 4) (0, 2) (6, 8)

Answers

System of equations are equations that is more than one and have two or more unknowns. The solution to the given system of equation is expressed as (0, 2)

System of equations

System of equations are equations that is more than one and have two or more unknowns.

Given the simultaneous equation

m + 4n = 8

m = n - 2

Substitute equation 2 into 1 to have:

n - 2 + 4n = 8

5n - 2  = 8

5n = 10

n = 2

Recall that m = n - 2

m = 2 - 2

m = 0

Hence the solution to the given system of equation is expressed as (0, 2)

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7. Claire has a $60 gift card. She uses the
whole value of the card to buy 4 copies
of the same book to give as gifts. How
much does each book cost?

Answers

Answer:

$15

Step-by-step explanation:

60/4 = 15

16. How much did your classmates typically spend on music downloads last year? statistical or not statistical​

Answers

Answer:

This would be a statistical question.

Step-by-step explanation:

PleASE HELP FAST
no links

Answers

Answer:

y=40/183x

Step-by-step explanation:

y = Rise/Run multiplied plus y intercept by x or Y= mx + b

There is no b

m = 40/183

Y = 40/183x

Simplify the radical

Answers

Answer:

4 ^3√7m^2

Step-by-step explanation:

^3√64×7m^2

^3√4^3×7m^3

^3√4^3 3^√7m^2

= 4^3√7m^2

Answer:

[tex] \boxed{ \tt = 4 \sqrt[3]{7m {}^{2} } }[/tex]

Step-by-step explanation:

Given,

[tex] \sqrt[3]{448m {}^{2} } [/tex]

Solution:

Rewrite 448 m^2:

[tex] = \sqrt{4 {}^{3 } \times 7 \: m {}^{2} } [/tex]

Bring terms out from the radical and write it as;

[tex] \tt = 4 \sqrt[3]{7m {}^{2} } [/tex]

[tex] \rule{225pt}{2pt}[/tex]

Anthony is planning a trip, using
a map with a scale of 1 cm to
15 miles. If the destination is
15 cm away on the map, how far
away, in miles, is the destination?

[?] miles

Answers

Answer:

225 miles

Step-by-step explanation:

(15)(15)=225

Hope this helps

Which is the smallest number that when rounded off to the nearest hundred thousand equals 500
million?

Answers

Answer: 499,900,000 rounding this to nearest hundred thousand gives us 500 million. Lowest number possible as there are no digits after the 9 in the hundred thousand place.

Change the subject of the equation v = u + at to a.

Answers

Answer ↓

Calculations ↓

In order to make a the subject of this equation , we need to get a by itself .

The current equation is :

v = u + at

Subtract u on both sides :

v-u=at

Now, divide by t on both sides :

v-u/t=a

So the formula looks like ↓

[tex]\boxed{\\\begin{minipage}{3cm}Equation \\ a=$\displaystyle\frac{v-u}{t} $ \\ \end{minipage}}[/tex]

hope helpful ~

help me please
help me please​

Answers

Answer:

1 second

Step-by-step explanation:

[tex]s=-5\\u=0\\v=\\a=-10\\t=t[/tex]

[tex]\begin{aligned}\textsf{Using} \quad s & =ut+\dfrac12at^2\\ \implies -5 & =(0)t+\dfrac12(-10)t^2\\ -5 & = -5t^2\\ t^2& = 1\\ t & = \pm\sqrt{1}\\ t & = 1\: \sf s\end{aligned}[/tex]

Im so confused… PLEASE HELP.. also sorry its so dark but its 6,6

Answers

Answer:

what is it asking?

Step-by-step explanation:

if its how many cubes it needs for it to fill up its 9

I hope this is right good luck

Natasha and Rodrigo are in a class of 30 students that selects 4 leaders. How many ways are there to select the 4 leaders so that either Natasha and Rodrigo are both selected or Natasha and Rodrigo are both not selected

Answers

There are 20853 ways are there to select the 4 leaders so that either Natasha and Rodrigo are both selected or Natasha and Rodrigo are both not selected.

What is combination?

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items.  

The number of the possible ways will be calculated by:

[tex]=2 ^{28}C_2+^{28}C_4[/tex]

[tex]=\dfrac{28\times 27}{2}+\dfrac{28\times 27\times 26\times 25}{4\times 3\times 2}[/tex]

[tex]=756+28853[/tex]

[tex]=21231[/tex]

Hence there are 20853 ways are there to select the 4 leaders so that either Natasha and Rodrigo are both selected or Natasha and Rodrigo are both not selected.

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What is the to this Question please let me now
4^4=

Answers

Answer:

4^4=4*4*4*16*16=256

Step-by-step explanation:

Answer:

4^4 =16

Step-by-step explanation:

4^4 = 4 · 4

they are both the same thing

4 + 4+4+4 = 16

help me add the location for each point of a b and c

Answers

A = -4

B = -1

C = 3

hope this helped!

Can someone please give me the (Answers) to this? ... please ...

I need help….

Answers

Answer ↓

please view the calculations section of this ans

Calculations ↓

The easiest way to determine the sine, cosine, and tangent of a number is to utilize the calculator, which we are asked to do.

cos (89) = 0.017

sin (17) = 0.29

tan (35) = 0.700

hope helpful ~

Find all real numbers x such that 3x - 4 < 5 and -8x - 19 < 21

Answers

Answer:

the numbers are -5 and 3

Step-by-step explanation:

First of all, the question is asking you to find the values of x from the given inequalities.

-8x -19<21 and 3x - 4 < 5

group all liked terms, in other words, make x and its coefficient stand alone.

-8x < 21 + 19 and 3x < 5 + 4

-19 became +19 because it crossed the sign <, also -4 became +4 because it crossed the sign <.

so we get

-8x < 40 and 3x < 9

we divide each "x" by its coefficient

[tex] \frac{ - 8x}{ - 8} < \frac{40}{ - 8} \: and \: \frac{3x}{3} < \frac{9}{3} [/tex]

then we get

x < -5 and x < 3

but x is positive so it's greater than -5 so we get

x > -5 and x < 3

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