Tell which equation you would choose to solve for one of the variables. Explain.
x + 4y = 30
x – 2y=0

Answers

Answer 1

Answer:

step below

Step-by-step explanation:

x + 4y = 30

x – 2y=0

x= 2y

2y + 4y = 30

6y = 30

y = 5

x = 10


Related Questions

a six sided cube is rolled. find the probability of P (4) as a decimal

Answers

Answer:

.66

Step-by-step explanation:

PLEASE HELP!! Will mark brainliest, find the measure of

Answers

Answer:

[tex]m\angle BYP=42^\circ[/tex]

Step-by-step explanation:

Lines and angles

The figure shows three lines forming two angles BYP and PYH whose measures add up to 90° because it's marked as a right angle.

[tex]m\angle BYP+m\angle PYH=90^\circ[/tex]

We are given the acute angles as a function of m. thus:

5m + 98 + 2m + 48 = 90

Simplifying:

5m + 146 = 90

5m = -56

m = -56/5 = -11.2

m = -11.2°

To find the measure of angle BYP, substitute m in

5m + 98 = 5*(-11.2) + 98 = 42°

[tex]m\angle BYP=42^\circ[/tex]

1.9t-5 simplify using commutative property

Pls help lolll

Answers

Answer:

There is nothing to be further simplified. It is how you wrote it. Let me know if it was a mistake I'll edit my answer.

Step-by-step explanation:

3(-4x + 8)=.................​

Answers

Answer:

-144 or 2 5

Step-by-step explanation:

Answer:

144

Step-by-step explanation:

Given that R= 7x + 7y
Find r when y = 2 and R=8

find x
Give your answer as a fraction in its simplest form.​

Answers

Answer:

Step-by-step explanation:

564/5

Bo, Ryan and Zachary went for a walk. They walked 1/4 miles from school to Bocas House. Then they walked 4/6 miles From Paul’s house to the park. What is the total distance with the boys walked?

Answers

Answer:

Total distance walked by boys = [tex]\frac{11}{12}[/tex] miles

Step-by-step explanation:

Given that:

Distance walked from school to Bocas house = 1/4 miles

Distance walked from Paul's house to the park = 4/6 miles

Total distance walked = [tex]\frac{1}{4}+\frac{4}{6}[/tex]

Total distance walked = [tex]\frac{3+8}{12}[/tex]

Total distance walked = [tex]\frac{11}{12}[/tex] miles

Hence,

Total distance walked by boys = [tex]\frac{11}{12}[/tex] miles

Compare these data sets. The equation of the trend line is listed below each data set.

2 tables. For table 1, column 1 is labeled H R and column 2 is labeled W. The regression equation is y = 0.39 x + 20.23. For table 2, column 1 is labeled R and column 2 is labeled W. The regression equation is y = 0.15 x minus 23.2.

Which statements are true about these data sets? Check all that apply.
Both sets have negative correlation.
Both sets have positive correlation.
There is no correlation between the sets.
The Runs set has a greater rate of change than the Home Runs set.
The Home Runs set has a greater rate of change than the Runs set.

Answers

Answer:

b and e

Step-by-step explanation:

Answer:

2 and 5 or B and E

Step-by-step explanation:

on edge

A manager of a clothing store always orders 2 small T-shirts and 3 large T-shirts for
every 4 medium T-shirts. The manager plans to order 24 medium T-shirts. How
many small T-shirts and large T-shirts should the manager order? Show your work.

Answers

Answer:

12 small, 18 large

Step-by-step explanation:

x - small

y - large

z- medium

4z=2x=3y then she orders 24

24/4=6 times more than usually, so we should *6 for every x and z

24z=6*2x=6*3y

12 - x - small tshirt

18 - y - large

Find the missing angle measures
Please help

Answers

Answer:

angle N is 64 and the bottom one is 52

Step-by-step explanation:

M and N are the same angke and they add up to 128 and all angles in a triangle add up to 180 meaning the bottom angle is 52

Answer:

N = 64 if there is another letter it would be 52

Step-by-step explanation:

I hope this helps <3

4+4=?

help I don't know​

Answers

Answer:

The answer is 8.

Step-by-step explanation:

thank you for the points :)

r(x)=-4/5x+7
what is x?

Answers

Your Welcome x= gfdghjiijjbfr

Somebody pls help me with this

Answers

It will take 40 seconds to get to the other side

HELP ME ASAP PLEASE TIMED

Answers

Answer:

All real values of x such that x != 5

Step-by-step explanation:

x cannot equal 5 because it will cause a division by 0 error

Math whizzes assemble! this is a tough one, this is a question on my study guide its a screenshot, any help would be appreciated.

Answers

Answer:

y = 49

x = 15

Step-by-step explanation:

The angle is 90 degrees and on one side of the bisector is 41 so to find y all you have to do is 90 - 41 = 49

(7x + 13) + (2x - 9) + 41 = 180

add like terms -     9x + 45 = 180

subtract -               9x = 135

Divide -                    x = 15

The diameter of a circle measures 32 mm. What is the circumference of the circle? Use 3.14 for , and do not round your answer. Be sure to include the correct unit in your answer.​

Answers

Answer:

100.48 ft

Step-by-step explanation:

f(x) = x + 8; translation 5 units down

Answers

Answer:

Please check the graph diagram attached.

From the diagram,

The red line represents the parent function f(x) = x + 8The blue line represents the translated function f(x) = x + 3

It is clear the parent function f(x) = x+8 has been translated down 5 units.

Step-by-step explanation:

The rule to determine the translating down 'b' units:

f(x) – b

It means if we have to translate a function f(x) 'b' units down, all we need is to subtract the 'b' units from the function output.

Given the function

f(x) = x + 8

In order to translate 5 units down, all we need is to subtract 5 units from the function.

i.e.

f(x) = x + 8 - 5

f(x) = x+3

Thus, we conclude that f(x) = x+3 is the translated function.

Please check the graph diagram attached.

From the diagram,

The red line represents the parent function f(x) = x + 8The blue line represents the translated function f(x) = x + 3

It is clear the parent function f(x) = x+8 has been translated down 5 units.

In one class, there are 2 of every 8 students in the class chewing
gum. If there are 32 students in the class, how many students are
chewing gum?

Answers

Answer:

8

Step-by-step explanation:

Answer:

8 people are chewing gum

Step-by-step explanation:

32/8=4, meaning there are 4 sets of 8 students.

If 2 students are chewing gum for every 8, and there are 32 students, that would mean that multiplying 4 by 2 to get 8 total kids chewing gum.

You could also say that 6*4=24, and 32-24=8 if you want to double check.

Hope this helps :)

whats is y= 2x-7 graphed

Answers

Answer:

Step-by-step explanation:

Start with a point at -7 on the y axis, and move up 2 right one repeatedly and keep making points. Then, connect them and you'll have your line.

Slope: 2
y-intercept: (0, -7)

Can somebody please help with this? (Slope)

Answers

Answer:

the slope is m= 5/31 :)

A carpenter is building a rectangular shed with a fixed perimeter of 54 ft. What are the dimensions of the largest shed that can be built? What is its area?

Answers

Answer:

the Largest shed dimension is 13.5 ft by 13.5 ft

Largest Area is 182.25 ft²

Step-by-step explanation:

Given that;

Perimeter = 54 ft

P = 2( L + B ) = 54ft

L + B = 54/2

L + B = 27 ft

B = 27 - L ------------Let this be equation 1

Area A = L × B

from equ 1, B = 27 - L

Area A = L × ( 27 - L)

A = 27L - L²

for Maxima or Minima

dA/dL = 0

27 - 2L = 0

27 = 2L

L = 13.5 ft

Now, d²A/dL² = -2 < 0

That is, area is maximum at L = 13.5 using second derivative test

B = 27 - L

we substitute vale of L

B = 27 - 13.5 = 13.5 ft

Therefore the Largest shed dimension = 13.5 ft by 13.5 ft

Largest Area = 13.5 × 13.5 = 182.25 ft²

PLEASE ANSWER THIS ASAP, I WILL BE GIVING YOU A THANKS!

Answers

Answer:

A

Step-by-step explanation:

When I did the two questions on the white board, only equation one had infinite solutions. Equation 2 have no solutions.

A is the correct answer because for equation 1 you get 0=0 and equation b you get 0=-21 :)

Is (9w x 0) -12 and 9w -12 equivalent

Answers

Answer:

no its not

Step-by-step explanation:

You would have to multiply 9w times -12 and 0 times -12 which does not equal the equation

(50pts)Solve for x:

a

7.125
b

6
c

8
d

4.125

Answers

Answer:

b. 6

Step-by-step explanation:

[tex](16x + 9) \degree = 105 \degree \\(corresponding \: \angle s) \\ \\16x + 9 = 105 \\ \\ 16x = 105 - 9 \\ \\ 16x = 96 \\ \\ x = \frac{96}{16} \\ \\ x = 6[/tex]

The correct answer is 6

At the bowling alley, there are 25 people bowling. There is a 60% increase in bowlers the next night. How many people are bowling on the second night?

Answers

Answer:

There would be 40 people bowling on the second night.

Step-by-step explanation:

25 x .60 = 15

60% of 25 is 15.

25 + 15 = 40

Answer:

40

Step-by-step explanation:

if 50% is 100 what is 25%, 75%, and 100%​

Answers

Step-by-step explanation:

25%=50

75%=150

100%=200

hope it helps

mark me brainliest

I need answer asap (10 points)

Answers

I believe it is same side interior

Answer:

Same side exterior angles

Step-by-step explanation:

Angle 3 and Angle 6 are same side exterior angles.

Is Sue´s answer correct? if not, why?

Answers

She distributed corrected.
She simplified correctly.
The solution is indeed none

Solution: Sue is correct

If cot 0= 4/3, find csc 0

Answers

Answer:

5/3

Step-by-step explanation:

Trigonometric ratio

Cot θ = Adjacent side/Opposite side

It is given that,

Cot θ  = 4/3

Adjacent side = 4

Opposite side = 3

Csc θ = Hypotenuse/Opposite side

To find the Hypotenuse

Hypotenuse² = Opposite side² + Adjacent side ² = 3²+ 4²

Hypotenuse = √(3²+ 4²) = 5

To find Csc θ

Csc θ = Hypotenuse/Opposite side = 5/3

Answer:

Option D

Step-by-step explanation:

6. Andrea deposits $350 dollars in her
checking account on Tuesday. On
Wednesday she withdraws $100. On
Thursday she deposits $75. Which of the
following shows the change in Andrea's
account from Tuesday to Thursday?


Help

Answers

The change would start off as a negative and end as a positive she would end up with $425

3 1/2 x 1 1/3
Please explain how to get the answer

Answers

Answer: 77/3 or 25.67

Step-by-step explanation:

3 1/2 * 11/3

3 * 2+1=7

7/3 * 11/3

7 * 11= 77

3 stays the same

77/3 or 25.67

Answer:

4 2/3

Step-by-step explanation:

You need to turn the fractions into improper fractions

To do that you multiply the whole number by the denominator and add the numerator, doing that will give you your new numerator, but the denominator stays the same

3 1/2. 3×2 = 6. 6+1=7 3 1/2 = 7/2

1 1/3. 1×3 = 3. 3+1 = 4. 1 1/3 = 4/3

Then multiply both numerator by each other and do the same for the denominators

7×4 = 28

2×3 = 6

28/6

Then simply it

28/6 = 4 2/3

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