A 4-column table with 4 rows. Column 1 is labeled x. Column 2 is labeled y. Column 3 is labeled x + y = 56. Column 4 is labeled 2 x minus 7 = y. All rows are blank. Using the guess and check technique, find two numbers that satisfy both conditions. The sum of the two numbers is 56. The second number is seven less than two times the first number. What is the value of the first number, x? 19 21 31 35

Answers

Answer 1

Answer:

B. 21

Step-by-step explanation:

I just got it correct on edge 2021.

Also:

12 x 2 = 42

42 - 7 = 35

35 + 21 = 56

Answer 2

Answer:

21

Step-by-step explanation:


Related Questions

Helppppp me thank you

Answers

Answer:

y = 5/6x + 4

Step-by-step explanation:

y = mx + b

b = 4 because when x = 0, y = 4

m  = (y2 -y1) / (x2 - x1)

where two points on the equation are (x1, y1) & (x2, y2)

Let's pick points (6,9) & (-6,-1)

m = (-1 - 9) / (-6 - 6)

m = -10 / -12 = 5/6

Place the numbers in the table to order them from least to greatest.

-14/3 -4 -3.95 -13/3 -4.25

Answers

Answer: i’m kinda late but -14/3 , -13/3 , 4.25 , -4 , -3.95

hope this helped! :)

Answer:

-14/3,-13/3,-4.25,-4,-3.95

Step-by-step explanation:

Given M BC equals 38° and M

Answers

=62 the arcs of the angle are subtracted and divided by 2

Can someone help please?

Answers

Answer:

y = 1.5x + 1

Step-by-step explanation:

Easy question pls anwser

Answers

Answer:

A, C, D

Step-by-step explanation:

Since 15 is a positive integer, it can be represented in positive situations.

15 students add classes to schedule. = 15

15 points are taken away. = -15

15 point are given. = 15

15 dollars has been added to your salary = 15

15 dollars have been taken from your salary = -15

Answer:

a,b,c

Step-by-step explanation:

Anna spent $2.75 at the school store. She bought two erasers and some pencils. How many pencils did she buy? Write and Solve an equation. If needed, use P to represent the number of pencils, and E to represent the number of Erasers. (This is for Multi-step Linear Equations) Pencils: 0.75 each erasers: 0.25 each

Answers

Answer:

1.25 is what she spent so she got 5 pencils

Step-by-step explanation:

SUPER EASY FOR POINTS!!!!solve: x-3=3x-2

Answers

Answer:

Polynomial equation solver

x-3=3x-2

Standard form:

−2x − 1 = 0

Factorization:

−(2x + 1) = 0

Solutions:

x = −1

2

= -0.5

Charles has 9 times as many red marbles as blue marbles.
If he has 288 more red than blue marbles, how many red marbles does
he have?

Answers

Answer:

314 red marbles

Step-by-step explanation:

Red = r, blue = b,

r = 9br = b + 288

Substitute:

9b = b + 2888b = 288b = 288/8b = 26

Red marbles:

r = 288 + 26 = 314

how do you simplify -1/2 (-5/6 + 1/3)?​

Answers

Answer:

answer is 1/4

.... .. . ...... .

:-))

hope it helps you

Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB, AC, BC.

Hint: Use areas of triangles...A=1/2bh

Answers

Answer:

[tex]x = \frac{2(A_T) }{(AB) + (AC) + (BC)} [/tex]

what is the value of k
-3(k+7)- 5k +4 = 23
a.) k=5 b.) k=-1 c.) k=5 d.)k=1

Answers

Answer:12.567

Step-by-step explanation:

Problem #4 My teacher said that for every student who earned an A on the last
quiz, three students earned a B. If four students earned an A, how many earned a
B? Why? Explain.


Answers

Answer:

12

Step-by-step explanation:

We can write the following ratio

1:3 (for every student who gets an A 3 gets a b)

We then can write a new ratio

4:x

We can solve this ratio by multiplying the original ratio by 4

4:12

This means that 12 people earned an B

What are the steps for simplifying an expression with exponents

Answers

Answer:

Step-by-step explanation:

1- Remove any grouping symbol such as brackets and parentheses by multiplying factors.

2- the exponent rule to remove grouping if the terms are containing exponents.

3- Combine the like terms by addition or subtraction.

4- Combine the constants.

Work out the value of angle x.
x
110%
Help:(

Answers

Answer:

40°

Step-by-step explanation:

Angles on a straight line add up to 180

180 - 110 = 70

As it's an isosceles triangle the opposite angles are the same

70 + 70 = 140

180 -140 = 40

Answer:

Step-by-step explanation:

180-110=70

x+70+70=180

x=180-140=40°

3.Mr. Lewis is buying art supplies for his students. For this project, he can spend no more than $50.00.
He has to buy one quart of paint for $8 and then one art kit for each student. The kit costs $3 each.
How many students can do this art project?

Answers

Answer: 14 students

Step-by-step explanation:

50,00-8.00= 42.00       42.00/3.00=14.00

Answer:

Step-by-step explanation:


Erika bought a piece of furniture for $450. If
the sales tax was 6.25%, how much did she
pay in sales tax?

Answers

Answer:

$28.13

Step-by-step explanation:

english: 6.25% of $450

math: (6.25/100) x 450 = 0.0625x450 = 28.125 = 28.13, rounded

4(х – 1) = 3х – 1
what is x

Answers

Answer:

x=3 hope I helped you! :)

I need help I will give brainiest​

Answers

Answer:

The one on top is no solution and the one on bottom is one solution

Answer:

the top one has no solution

Step-by-step explanation:

WILL MARK YOU BRAINLIEST

Answers

Answer:

15) The equation to find the sum of interior angles is

(n - 2).180

which means that a polygons interior angles will always be a multiple of 180 because they are multiplied by it.

What are the 5 positive integers that have a mode of 2 and 4, a median of 4 and a mean of 5

Answers

Answer:

10 i belive

Step-by-step explanation:

Hence, the five positive integers are 2, 2, 4, 4, 13.

What is a mean , median and mode?

Mean- The arithmetic mean of a given data is the sum of all observations divided by the number of observations.

Median-The value of the middlemost observation, obtained after arranging the data in ascending or descending order, is called the median of the data.

Mode-The value which appears most often in the given data i.e. the observation with the highest frequency is called a mode of data.

Step by Step Solution:

According to the question , it can be concluded that the total no. of observations are 5.

So , Let n=5

Let  the integers be a, b, c, d and e

The question says that mode(s) are 2  and 4.

This indicates that 2 and 4 both have occurred more than once , and both have same frequency since both are modes.

Since we have only 5 integers , and 2 and 4 both are modes , so both these numbers have possibility to occur only twice.

Hence , it becomes , a=2 , b=2 , c=4 , and d=4

Hence we can say that out of five required integers ,four of them are 2 and 4.

Further , we are given that mean is 5.

therefore , using formula:

Mean = Sum of Observations / Number of observations(n)

Mean=  (a+b+c+d+e) / 5

5 = (2+2+4+4+e) / 5

5 = (12+e)/5

Multiplying both sides by 5 , we get :

25 = 12+e

e=25-12

Hence , e = 13

So,  the five positive integers are 2, 2, 4, 4, 13.

Learn more about Mean , Mode and Median at:

https://brainly.com/question/12051754

#SPJ2

There are 27 cupcakes. Nine are chocolate, 7 are
vanilla and the rest are strawberry. What is the
ratio of chocolate & strawberry cupcakes to
vanilla & chocolate cupcakes?

Answers

Answer:

9/11 = 7/9

Step-by-step explanation:

9 are chocolate

27 - 16 = 11

7 are vanilla

20:16

Step-by-step explanation:

9 chocolate

7 vanilla

11 strawberry

9+11=20, 9+7=16

can someone help i know you looking

Answers

Answer:

A

Step-by-step explanation:

We know a number is an expression when it is:

1) NOT greater/ less than something else

2) NOT equal/ not equal to something else

The only answer choice that satisfies the above is A.

In 5 minutes, a data entry clerk types 11 14 pages of
data. At this rate, how many pages can she type per
minute?
She can type 2.25

Answers

Answer:

Probs tbh

Step-by-step explanation:

Lol

Can someone plz help me on mixed numbers plz

Answers

Answer:

The answer 3/4

Step-by-step explanation:

Answer:

\frac{3}{4}

[tex]convert \: the \: mixed \: numbers \: into \: a \: fraction frac{9}{4} - \frac{3}{2}

applying the fractions formula for subtraction

(9 \times 2) - (3 \times 4) \\ 4 \times 2 \\ = 18 - 12 \\ 8 \\ = \frac{6}{8} \\ then \: diide \: each \: number \: by \: 2 \: and \: get \\ \: \frac{3}{4}

Please helpppp
Find the value of x. Your answer must be
Exact

Answers

Answer:

x = 8

Step-by-step explanation:

sin (30) = 4/x => solve for x.

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

Use the sine ratio because we have the hypotenuse and side opposite the given angle to work with:

[tex]sineX=\frac{opposite}{hypotenuse}[/tex]

Insert the values:

[tex]sin30=\frac{4}{x}[/tex]

Multiply both sides by x:

[tex]x(sin30)=x(\frac{4}{x} )\\\\x*sin30=4[/tex]

Divide both sides by sin30°:

[tex]\frac{x*sin30}{sin30} =\frac{4}{sin30}\\\\x= \frac{4}{sin30}[/tex]

Insert the value of x into a calculator:

[tex]x=8[/tex]

OR:

The little red square means that angle is 90º, and the other given angle is 30°. Since every triangle has a measure of 180°, the other missing angle is 60°. The given triangle is a 30°-60°-90° triangle with the following rules:

[tex]long.leg=short.leg*\sqrt{3}\\\\hypotenuse=short.leg*2[/tex]

The hypotenuse is represented by the variable x. We are given the value of the short leg, which is 4. Solve for the hypotenuse:

[tex]h=4*2\\\\h=8[/tex]

Therefore, the value of x is 8.

:Done

a train travels 120 km in 2 hours and 30 miniutes. what is the average speed in km/h ?​

Answers

Answer:

120/2.5 = 48

48 km/hr

Step-by-step explanation:

What is the slope of the line through (-9,6)(−9,6)

Answers

Answer:

Well I think It's undefined

Step-by-step explanation:

m =  y2 - y1/x2 - x1

= 6-6/-9-(-9)

= 6-6/-9+9

m = 0/0

Answer:

slope is indeterminate

Step-by-step explanation:

Given (- 9, 6) and (- 9, 6) ← that is a single point

No line is formed by a point , thus the slope is indeterminate

Please answer these for a lot of points don’t scam me or I will report you a lot!

Answers

Answer:

t = total money spent

t = $2.99g + $3.25c

for b just plug in g and c

$2.99(7.9) + $3.25(4)

if you put it into a calculator you get that he spent a total amount of $36.62 for the 7.9 gallons of gas and the 4 cans of oil. (:

Answer:

A=45 + 15 + 30 = 90 B=15 (for both spaces) C= Pencils=3 boxes a crayons=1 erasers per bag=2 D= 12 pencils in a pack and 3 in a supply kit.

Step-by-step explanation:

That's it!

The lowest temperature recorded in Canada was -63 degrees. The highest temperature recorded in Canada was +45 degrees. What is the difference between the temperatures?

Answers

Answer:

108 degrees difference.

Step-by-step explanation:

63+45=108

Answer:

108

Step-by-step explanation:

45--63=108

Hope you have a great day!

How can you determine whether salt water is a solution or a compound?

Answers

Answer:

In the comments

Step-by-step explanation:

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