Determine whether or not the given value is a solution. 1. -5x + 4 = -1; x = -1 2.4x3 = -7; x = -1 3. 3y -4 = 5; y = // 4.-2y + 7 = 12; y = -1/2 5.3a-6 = 18 - a; a = -3 6. 5(2t - 1) = 2 = t; t = 2 7. ax = b = 0; x = b/a 8. ax + b = 2b; x = b/a​

Answers

Answer 1

#1

[tex]\\ \sf\hookrightarrow -5x+4=-1[/tex]

[tex]\\ \sf\hookrightarrow -5x=-5[/tex]

[tex]\\ \sf\hookrightarrow x=1[/tex]

Incorrect

#2

[tex]\\ \sf\hookrightarrow 4x-3=-7[/tex]

[tex]\\ \sf\hookrightarrow 4x=-4[/tex]

[tex]\\ \sf\hookrightarrow x=-1[/tex]

Correct

#3

[tex]\\ \sf\hookrightarrow 3y-4=5[/tex]

[tex]\\ \sf\hookrightarrow 3y=9[/tex]

[tex]\\ \sf\hookrightarrow y=3[/tex]

Ans not given

#4

[tex]\\ \sf\hookrightarrow -2y+7=12[/tex]

[tex]\\ \sf\hookrightarrow -2y=5[/tex]

[tex]\\ \sf\hookrightarrow y=-5/2[/tex]

Incorrect

#5

[tex]\\ \sf\hookrightarrow 3a-6=18-a[/tex]

[tex]\\ \sf\hookrightarrow 4a=24[/tex]

[tex]\\ \sf\hookrightarrow a=6[/tex]

Incorrect

#6

[tex]\\ \sf\hookrightarrow 5(2t-1)=2[/tex]

[tex]\\ \sf\hookrightarrow 10t=7[/tex]

[tex]\\ \sf\hookrightarrow t=7/10[/tex]

Incorrect

#7

[tex]\\ \sf\hookrightarrow ax-b=0[/tex]

[tex]\\ \sf\hookrightarrow x=\dfrac{b}{a}[/tex]

Correct

Done


Related Questions

Every week Jim runs 8 miles and bikes 12 miles. Write an ordered pair to represent how many miles Jim runs and bikes in 5 weeks. Use the drop-down menus to complete the sentence. Jim runs Choose... miles and bikes Choose... miles in 5 weeks. The ordered pair would be Choose... .

Answers

The ordered pair to represent how many miles Jim runs and bikes in 5 weeks is (3.33, 5)

Writing an ordered pair to represent how many miles Jim runs and bikes in 5 weeks.

From the question, we have the following parameters that can be used in our computation:

Every week Jim runs 8 miles and bikes 12 miles.

This means that we have the ratio

Run : Bike = 8 miles : 12 miles

When he bikes for 5 weeks, we have

Run : 5 weeks = 8 miles : 12 miles

This gives

Run/5 weeks = 8/12

So, we have

Run = 5 weeks * 8/12

Evaluate the products

Run =  3.33 weeks

Hence, the number of weeks is 3.33 and the ordered pair is (3.33, 5)


Read more about ordered pairs at

https://brainly.com/question/31704761

#SPJ1

PLEASE HELPPPPP
Write the equation of the circle in standard form from the given information. Show all work.
Center (0,0)
Diameter = 14

Answers

The answer is x^2 + y^2 = 49

PLEASE HELP
no linkss

Answers

Answer:

-5.2, -4.75, -9/2

Step-by-step explanation:

From least to greatest it is -5.2, -4.75, -9/2

5x + y = 11
3x − y = 9

Answers

Answer:

x = 5/2y = -1.5

Step-by-step explanation:

5x + y = 11

        3x − y = 9

=> 5x + y = 11

           +3x − y = +9

=> 8x = 20

=> x = 20/8

=> x = 5/2

=> 5(5/2) + y = 11

=> 25/2 + y = 11

=> 12.5 + y = 11

=> y = 11 - 12.5

=> y = -1.5

Therefore, the answers are:

x = 5/2y = -1.5

Hoped this helped.

[tex]BrainaicUser1357[/tex]

Suppose that the market price for a bottle of vitamins is $1.61 and that at that price the total market quantity demanded is
255,340,000 bottles. How many firms will there be in this industry?
firm(s)

Answers

Answer:

255,340,000(1.61)= $411097400

Step-by-step explanation:

multiply the total amount of bottles by $1.61, since it costs $1.61 per bottle.

Help help math math math please

Answers

Answer:

-2) -14

0) -8

2) -2

4) 4

Step-by-step explanation:

Plug in each input for x, and solve for y

Answer: 2) -140) -82) -24) 4

Step-by-step explanation:

If Amari had 15 apples and 14 got taken away how many would there be??

Answers

Answer:

15-14=1

Step-by-step explanation:

1 apple left

Answer:

1 apple

Step-by-step explanation:

15-14=1

Hope the helps!

Mario and Luigi are in a race in their new cars. Luigi has a 1000 foot head start and he travels at a speed of 4000

Answers

Answer: why do they have so many cars what are you trying to ask and what does Mario have to do with this?

Step-by-step explanation:

please change your question.

Solve the inequality for x.
9x - 7 < 7x - 25

Answers

Answer:

x<-9

Step-by-step explanation:

subtract the 7x from the right side to bring it over to the left side to get:

2x-7<-25

then add the 7 from the left side to bring it over to the right side to get:

2x<-18 and then divide both sides by 2 to get the final inequality to be:

x<-9

Answer: x < -9Step-by-step explanation:9x - 7 < 7x - 25=> 9x - 7x < 7 - 25=> 2x < -18=> x < -9Conclusion:

Therefore, the solved inequality is x < -9.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

Travis has hired Charlie and Dora to plant flowers. Dora can plant 150 flowers in the same time it takes Charlie to plant 120 flowers, which can be shown using the following relationship where d and c are the respective rates at which Dora and Charlie can plant flowers:

150 over d equals 120 over c

Also, Dora can plant 18 flowers more per day than Charlie.

How many flowers can Charlie plant per day?

Answers

Answer:

  72

Step-by-step explanation:

If the rates d and c are flowers per day, we have ...

  150/d = 120/c

  d -c = 18

__

Multiplying the first equation by cd/30, we have ...

  5c = 4d

Multiplying the second equation by 4 gives ...

  4d -4c = 72

Adding these equations together, we get ...

  5c +4d -4c = 4d +72

Simplifying and subtracting 4d leaves ...

  c = 72

Charlie can plant 72 flowers per day.

comparing freezers

Maria compares two freezers.

Freezer A is 8 feet long, 4 feet wide, and 2 feet high.

Freezer B is 6 feet long, 4 feet wide, and 3 feet high.

correctly complete the statement : Freezer _ has _ more cubic feet than Freezer _ .

Answers

Answer:

Freezer B has 8 more cubic feet than Freezer A.

Step-by-step explanation:

Volume of Freezer A = 8 * 4 * 2 = 64 ft^3.

Volume of Freezer B = 6 * 4 * 3 = 72 ft^3.

72 - 64 = 8 ft^3.

Answer:

Freezer B has 8 more cubic feet than Freezer A.

Step-by-step explanation:

LAST ATTEMPT IM MARKING AS BRAINLIEST!! (Pythagorean theorem )

Answers

Answer:

x = √7km

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

You take a right triangle and find the lengths of the two sides that are vertical and horizontal. Then, using the formula a^2 + b^2 = c^2, find the length of C

(aka: Hypotenuse)

hope this helps!

Which of the following statements about the image below is true?

Answers

Answer:

d. Line UR and Line VW are parallel

Step-by-step explanation:

If they were to continue going straight, they would not touch, making them parallel.

I hope this helps!

Please help
4³−4÷2x5

Answers

Answer:

its 54

Step-by-step explanation:

Answer:

the answer is 6

Step-by-step explanation:

4 to the 3 power is 64

64-4=60

2x5=10

60/10=6

HELP! ( MATH )
WILL GIVE BRAINILEST!

Question:
Graph the solution of the equation.
b – 5 = –8

Answers

Answer:

b = -3 so A is answer

good luck

Answer:

option C is the correct answer

what is 2*6 i need help

Answers

Its 12 for answer

Step-by-step explanation:

2×6=12

solve for x where xe(0,2pi). state exact answers.
b)
[tex] \frac{1}{ \sqrt{3} } \sin(2x) + \cos(x) = 0[/tex]
e)
[tex]3 \cos(x) + \tan(x) = 0[/tex]
Note: for question e, get this equation to a point ready for factoring or to use the quadratic formula, then stop. make sure its in standard form.​

Answers

Answer:

that's the correct answer

This is my question I need the answer to

Answers

ANSWER: 12
Ok done. Thank to me :>

4x+3y=7 what is the coefficients

Answers

co-efficient of x is 4co-efficient of y is 3constant term is -7

nasa pick po yong sagot

#CARRYONLEARNING

loveuall:)

f (x) = 2log
(1/4x-5) +6
Find the Inverse

f-1(x) = 120.52–3 + 20
f-1(x) = 4.30.53–6 +5
f-1(x) = 4.30.52–3 + 20
-6
=
=

Answers

Answer:

6 is the answer for the question

A flagpole has a 10 foot shadow. A soldier standing next to it is 6 foot tall and has a 2 foot shadow. How tall is the flagpole?

Answers

Answer:

30 feet tall flag pole

Step-by-step explanation:

Question
Bill needs to mow his yard which has the dimensions in the shape below. What is the area of yard he needs to mow?
Note: Round your answer to one decimal place.
12 m
5 m
15 m

Answers

Answer:

Step-by-step explanation:

imagine you chop off a right triangle from the left side

now you have a rectangle and a right triangle

the rectangle

height 5

width 12

5 x 12 = 60

triangle

height 5

width 3

3 x 5 = 15

15 / 2 = 7.5

60 + 7.5 = 67.5 m^2

Answer: 67.5 m^2

Step-by-step explanation:

To find out the area of the yard, we split the shape up into a triangle and rectangle. The area of the triangle is,

A = 1 × b × h/2 = 1 × 3 × 5/2 = 7.5 m^2.

And the area of the rectangle is,

A = 12 × 5 = 60 m^2.

We then add the area of the triangle and the area of the rectangle.

A = 7.5 + 60 =67.5 m^2

Rounded to one decimal place, the area of the yard is 67.5 square meters.

Interest = $45.58, time = 1 year, rate = 2.25%. Find the principal. Round to the nearest hundredth place

Answers

Answer:

$2,025.78

Step-by-step explanation:

I = Prt ⇒ P = [tex]\frac{I}{rt}[/tex]

2.25% = 0.0225

P = 45.58 ÷ ( 0.0225 × 1 ) ≈ $2,025.78

What is that answer Share 126 gallons of petrol between Steve and Dave in the ratio 2:5

Answers

5+2=7 parts in the ratio
126÷7=18 gallons per part
s:d
18x2:18x5
36:90

ratio
a. L
b. bozo
d. your life is bad
c. ratio again

Answers

Answer:

d

Step-by-step explanation:

The Answer is d for sure

Bob spends $650 for a gym membership plus $75 for each hour with a personal trainer. Is the description linear or exponential?

Answers

Answer:

y = 75x + 650

So I think it's linear.

Multiply and fill in the blanks
a) 5pq(p2+ q2+pq)
b) -7pr (pq – qr - rq)
c) (4x-3y) (5x-4a)

with explanation pls !

Answers

The solution to the simplification of the algebraic expressions are;

A) 5p³q + 5pq³ + 5p²q

B) 14pqr² - 7p²qr

C) 20x² - 15xy - 16ax + 12ay

A) We have the expression;

5pq(p² + q² + pq)

Multiplying out using the concept of distributive property, we have;

(5pq × p²) + (5pq × q²) + (5pq × pq)

>> 5p³q + 5pq³ + 5p²q

B) We have the expression;

-7pr(pq – qr - rq)

Multiplying out using the concept of distributive property, we have;

-7p²qr + 7pqr² + 7pqr²

>> 14pqr² - 7p²qr

C) (4x - 3y)(5x - 4a)

By quadratic expansion, we have;

(4x * 5x) - (3y * 5x) - (4x * 4a) + (4a * 3y)

>> 20x² - 15xy - 16ax + 12ay

Read more about simplification of algebra at; https://brainly.com/question/4344214

At a dinner, the meal cost $22 and a sales tax of $1.87 was added to the bill.
How much would the sales tax be, in dollars and cents, on a $66 meal?

Answers

The sales tax for a $66 meal would be $5.61.

Increase £26 by 30%
Increase £440 by 19%
Decrease £62 by 20%
Decrease £300 by 48%

Answers

Step-by-step explanation:

standard deviation of $3

Find a 98% confidence interval about the mean (one decimal place).

Is a value of X=48 unusually high or is it normal? Choose correct explanation

A recipe calls for 2 tsp of oatmeal to make 7 protein bars.
How much oatmeal is needed to bake 27 protein bars?

A) 3 1/3 tsp
B) 9 tsp
C) 21 tsp
D) 81 tsp

Answers

Answer:

3 1/3 is the answer im pretty sure

Other Questions
Iron reacts with oxygen and water to create rust and hydrogen gas as shown in the chemical equation. What mass of rust, to the nearest hundredth gram, is produced in this reaction?A) 4.3 gB) 5.8 gC) 16.8 gD) 29.4 g HELP ME NOW PLZ FOR BRAINLIEST Question 1(Multiple Choice Worth 5 points)(MC)Read the excerpt below. Which of the following statements best summarizes the main idea of the excerpt?In 1944 Elion joined the Burroughs Welcome Laboratories (now part of GlaxoSmithKline (a company that makes prescription medicines)). There she was first the assistant and then the colleague of Hitchings, with whom she worked for the next four decades. Elion and Hitchings developed an array (variety) of new drugs that were effective against leukemia, autoimmune disorders, urinary-tract infections, gout, malaria, and viral herpes. A). Elion believed that new drugs could be developed to help people. B). Elion had to work for Hitchings because she was a woman. C). Elion worked hard for more than 40 years to earn money for retirement. D). Elion and her colleagues were responsible for developing important drugs. Without using your calculator, work out 27 -Give your answer as a fraction in its lowest terms.You must show each step of your working. (If someone is online)pls help me to answer this question Which product is negative? According to the article, why was Wiesel's novel "Night" important to the world? Why did the Continental Congress have a difficult time paying back its war debts?A) It needed a better advertising campaign.B) It had no power to tax citizens to help pay back the debt.C) Someone had stolen all the money Congress had in a vault.D) The bank would not release money to Congress. 3/4c-7/12+7/24c+2/3-1/6csimplify the expression WILL GIVE BRAINLIEST plss help. Extra points. Which details belong in an effective summary of Occasioned by General Washington's Arrival in Philadelphia, On His Way to His Residence in Virginia?Select Yes or No for each detail. I need someone to help me whos really good at 7-8th grade math :) HURRY IN TEST!! Which of the following number lines shows the solution to the inequality given below?2x 3 < -9 OR 2x 3 > 3 Pilar used five reusable shopping bags on a recent purchase she made at a grocery store. Each bag decreased the amount she spent by 5 cents. What was the change to the amount Pilar spent at the grocery store by using the reusable bags? A. -10 cents B. 25 cents C. -25 cents D. 10 cents PLS I REALLY NEED HELP If the relative positions of the sun and moon affect the oceans tides, why would it be helpful for sailors and other people who work on the ocean to understand patterns in the Earth-sun- moon system? Please Help The Receiver has to hold all the painful, terrible memories so that what bone in the human body is not connected to another how do you know if your catalytic converter is bad The EnlightenmentWhat is time of this period?What is the big ideas?Who was in that period?If you and answer my question, i'll give you 5 stars and a heart.if your answer not correct, i mean just answer to get score, i'll report you.( You can search it, just because i'm lazy to read it. )Thank you very much! symbolic significance of Indian national flag write a essay on it up to 120 words .... help meee PLEASE HELP!!!!!!!How do the organs in the endocrine system work together?A. Organs produce hormones that change a child's body into an adult.B. Organs filter toxins from blood and urine.C. Organs transport oxygen to different parts of the organism.D. Organs transmit electrical signals throughout the organism's body.