Evaluate each expression.
x = 2
y = 4
z = 8

1. xy
10
2. x + z
8
3. z - y
4
4. x + y + z
14

Answers

Answer 1
1. 2*4 = 8
2. 2+8 = 10
3. 8-4 = -4
4. 2+4 = 6+8 = 14
Answer 2

Answer:

1=8

2=10

3=4

4=14

Step-by-step explanation:


Related Questions

Which transformation of f(x) will produce the same graph as g(x)?

f(x) = 3x
g(x) = f(x) + 3

A.
h(x) = f(x) + 1
B.
h(x) = 2f(x)
C.
h(x) = f(x + 1)
D.
h(x) = f(x − 1)

Answers

Answer:

C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Type the answer in standard form below.
What is the value
of the 7
in the number
7,682,912?

Answers

Answer:

its 7 million

Step-by-step explanation:

What is the measure of A

Answers

Answer:

the answer is 3

Step-by-step explanation: the third one is the answer

4.5ml=.........L
help meeeeee​

Answers

0.0045 L

1000 ml in a L

So divide 4.5 by 1000

You get 0.0045

Solve the equation for y

1/4y - 2x = 5

1. y = 8x + 20
2. y = 2x + 5
3. y = (1/2)x + 5/4
4. y = -8x + 20

Answers

Answer:

y = 8x +20

Step-by-step explanation:

The value of y for the given expression is y = 8x + 20. The correct option is A.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given expression is 1/4y - 2x = 5. The value of y for the expression is solved as below:-

1/4y - 2x = 5

( 1 / 4 )y = 2x + 5

y = 4 ( 2x + 5 )

y = 8x + 20

Therefore, the value of y for the given expression is y = 8x + 20. The correct option is A.

To know more about an expression follow

https://brainly.com/question/723406

#SPJ2

Juan earns $625 per week. He is married and claims 3 withholding allowances. He pays $90 each week for childcare. If he participates in his employer's cafeteria plan and has the childcare expenses deducted from his wages before taxes, how much will he save in federal income and FICA tax each paycheck?

Answers

Answer:

help needed

Step-by-step explanation:

.

3a) (4 NF B.4.b. 4.NBTA1, 4.0AA.1) 28 is 7 times what number? Write your answer as a number. If a fraction is necessary, use the "/" key as the fraction symbol. Your​

Answers

Answer:

4

Step-by-step explanation:

28/7=4

A triangle has one angle that measures 56∘ and one angle that measures 63∘. The measure of the triangle's third angle is _____ degrees.

Answers

Answer:

61 degrees

Step-by-step explanation:

Let's do this

So we know all the angles measure in a triangle will be 180 degrees

We have 56 and 63

To find the third, let's add and subtract

56+63=119

Now let's subtract from 180

So 180-119=61

The third angle measures 61 degrees

Now let's add them up and see if they total 180 degrees

So 56+63+61=180

Yay, we found the answer!

The answer is 61 degrees.

Write an equation of the line shown. Then use the equation to find the value of 2 when y = 185

Answers

Answer:

[tex] y = 15x + 20 [/tex]

x = 11, when y = 185

Step-by-step explanation:

Given:

(0, 20);

(2, 50)

Required:

Equation of the line;

Value of x, when y = 185

SOLUTION:

Equation of the line can be written using the slope-intercept formula, given as, [tex] y = mx + b [/tex].

m = slope = [tex] \frac{y_2 - y_1}{x_2 - x_1} =\frac{50 - 20}{2 - 0} = \frac{30}{2} = 15 [/tex]

b = y-intercept = the pointt at which the line cuts the y-axis = 20

Plug in the value into the formula to get the equation:

[tex] y = mx + b [/tex]

[tex] y = 15x + 20 [/tex]

Use this equation to solve for x, when y = 185

[tex] y = 15x + 20 [/tex]

[tex] 185 = 15x + 20 [/tex] (substitution)

[tex] 185 - 20 = 15x + 20 - 20 [/tex]

[tex] 165 = 15x [/tex]

[tex] \frac{165}{15} = \frac{15x}{15} [/tex]

[tex] 11 = x [/tex]

x = 11, when y = 185

The formula K=59(F−32)+273.15 converts temperatures from Fahrenheit F to Kelvin K.

a. Solve the formula for F.

F= ​

Answers

Answer:

9/5 (K-273.15) + 32=F

Step-by-step explanation:

K=5 /9(F−32)+273.15

Subtract 273.15 from each side

K-273.15=5/9(F−32)+273.15-273.15

K-273.15=5/9(F−32)

Multiply by 9/5 on each side

9/5 (K-273.15)= 9/5 *5/9(F−32)

9/5 (K-273.15)=(F−32)

Add 32 to each side

9/5 (K-273.15) + 32=F−32 +32

9/5 (K-273.15) + 32=F

Answer:

f=1/59k+27.370339

Step-by-step explanation:

k=59(f−32)+273.15

Step 1: Flip the equation.

59f−1614.85=k

Step 2: Add 1614.85 to both sides.

59f−1614.85+1614.85=k+1614.85

59f=k+1614.85

Step 3: Divide both sides by 59.

59f/59=k+1614.85/59

f=1/59k+27.370339

A person standing on moving walkway travels 90 feet in 30 seconds . What equation represents this relationship? How many feet will the person travel in 10 seconds?

y=kx

Answers

Answer: y=3x;30 feet

Step-by-step explanation:

A tank measures 1.8m x 0.5m x 0.5 m what is the surface area including the top

Answers

Answer:

4.1

Step-by-step explanation:

1.8 x 0.5 = 0.9

0.5 x 0.5 = 0.25

2(0.9 + 0.9 + 0.25) = 2(1.8 + 0.25) = 2(2.05)

2 x 2.05 = 4.1

Therefore the answer is 4.1

I hope that was helpful!

Answer:

Hope it helps.....plz mark as brainliest

Step-by-step explanation:

SA = 2(hl+hw+lw)

 

It doesn't matter which specifically is the height or width or length in this case.

1.8 x 0.5 = 0.9

1.8 x 0.5 = 0.9

0.5 x 0.5 = 0.25

2(0.9 + 0.9 + 0.25) = 2(1.8 + 0.25) = 2(2.05)

2 x 2.05 = 4.1, which is the surface area.

There are 15 students in my first period class. If 6 of the students in the class are boys, what percent of the students are boys?

A. 60%
B. 25%
C. 40%
D. 30%​

Answers

Answer:

C

Step-by-step explanation:

If you were to multiply 15 by 40% it would equal 6.

Answer : 40%

No. of students in 1st class= 15

No. of boys = 6

Percentage of boys = 6/15 ×100

= 2/3×100

= 40%

If this answer helps you plz mark as brainlist..TQ..

Please answer this correctly without making mistakes

Answers

Both are correct

I accidentally got rid of the other things so I now have to type 20 characters so i can actually answer it

ew gross i hate IXL....

Question 1 Triangle ABC is a right triangle. The lengths of the legs are 60 centimeters and 80 centimeters. What is the length, in centimeters of the hypotenuse?
HELP HURRY!!​

Answers

Do you have a picture?

The high school has 35 teachers and 630 students. What is the ratio of teachers to students?
A: 18:1
B: 1:18
C: 630:35
D: 35:630

Answers

Answer:

The ratio of teachers to students is B) 1:18

Step-by-step explanation:

Simply divide the number of teachers to the number of students

630/35 = 18

Therefore the ratio between teachers to students is 1:18, meaning that there is 1 teacher designated for every 18 students.

Graph the line using a point and a slope. Write the equation of each line.
c
a line that contains point (0, −3) and perpendicular to another line whose slope is 2.

Answers

Answer:

Graph attached.

Step-by-step explanation:

Line (i) contains  point (0, -3)It's perpendicular to line (ii) whose slope is 2

The product of slope of line (i) and slope of line (ii) should be equal to -1 (product of slopes of two perpendicular lines = -1)

i.e

Slope of line (i) × 2 = -1

Slope of line (i) = [tex]-\frac{1}{2}[/tex]

To find the equation of line (i), we need another point (x,y) on the line.

Slope (m) = change in y ÷ change in x = [tex]\frac{y - -3}{x - 0} = -\frac{1}{2}[/tex]

y = [tex]-\frac{1}{2} x[/tex] - 3

*The graph of this line is attached here below.

if 3/2p = 15 what is p

Answers

Answer:

p= 1/10

Step-by-step explanation:

i looked it up

what is 40 times 16 ​

Answers

Answer:

640

Step-by-step explanation:

Answer:

the answer is 640 you're welcome

Find x. Give reasons to justify your solution.
b

Lines
AB
and
CD
are straight lines.

Answers

Answer:

x = 28

Step-by-step explanation:

If AB and CD are the straight lines, sum all the angles formed at a point lying on this line will be 180°.

m∠COE + m∠EOF + m∠FOB + m∠BOD = 180° [Angles at a point O on line AB]

3x + x + (x + 12) + m∠BOD = 180°

m∠BOD = 180° - (5x + 12)

Similarly, m∠AOD + m∠AOC = 180°

152° + m∠AOC = 180°

m∠AOC = 28°

Since, ∠AOC and ∠BOD are the vertical angles,

m∠AOC = m∠BOD

180° - (5x + 12)° = 28°

5x + 12 = 180 - 28

5x = 140

x = 28

A lake is 35 miles across. Find the width of the lake on the map.

Answers

Answer:

5 cm or 5 miles

Step-by-step explanation:

Because 1 cm = 7 miles so that mean divide it by 35 which you would get 5

When Alyssa was ten years old, she was twice as old as her horse midnight. If midnight died when he was twenty four years old, how old was Alyssa when Midnight died?

Answers

Let Alyssa's horse's age be x .

Then :-

Alyssa's age = 2x

Age of her horse when it died = 24

Alyssa's age when her horse died =

[tex]2x \\ = 2 \times x \\ = 2 \times 24 \\ = 48 \: years[/tex]

∴ Alyssa was 48 years old when her horse Midnight died .

Answer:

29

Step-by-step explanation:

Alyssa was twice the age of midnight so 10 ÷2 =5(age gap)

Midnight died at 24 so Alyssa was 29 that time because

24+5(age gap) =29

Hope this helps

Which expression is equivalent to (18x + 9k) + (2x + 6k)?
16 x + 3 k
20 x + 15 k
20 x + 16 k
36 x + 54 k

Answers

Answer:

B. 20x + 15

Step-by-step explanation:

Get rid of the parenthesis and combine like terms: 18x + 2x and 9k + 6k

You get: 20x + 15.

Answer:

b

Step-by-step explanation:

the person above me should have brainliest

whats 2×1..... ............. . .......​

Answers

Answer:

2

Step-by-step explanation:

Answer:

2x1 is 2

Step-by-step explanation:

The graphs below show some data from a coffee shop menu. One of the graphs shows cost (in dollar) vs. drink volume (in ounces), and one of the graphs shows calories vs. drink volume (in ounces.)
a. Which graph is which? Given them the correct titles.
Graph A: _______vs volume......... Graph B:_______vs volume

b. Which quantities appear to be in a proportional relationship?
1. cost vs volume or
2. calories vs volume
For the proportional relationship, find the constant of proportionality.
a. 0.21 per ounce,
b. 12 calories per ounce,
c. 0.38$ per ounce, or
d. 15 calories per ounce

Answers

Answer:

a. Graph A: Cost vs Volume

Graph B: Calories vs Volume

b. Graph B (Calories vs Volume)

c. k = 15

Step-by-step explanation:

a. It is not possible for a volume of 10 oz of drink to be sold for $150. It doesn't make common sense. Also, calorie level of 150 in 10 oz of drink seem plausible.

It makes more sense if 10 oz of the drink cost $3.75. Therefore, the graphs should be titled as follows:

Graph A: Cost vs Volume

Graph B: Calories vs Volume

b. The quantities in Graph B (Calories vs Volume) appear to be in a proportional relationship. We know this because if we try drawing a line to connect the points on the graph, it will give us a straight line. A straight line connotes proportionality.

Also the ratio of the quantities of the two known points given are the same. I.e. [tex] \frac{150}{10} = \frac{360}{24} = 15 [/tex]

Therefore the quantities compared in Graph B shows a proportional relationship.

c. Constant of proportionality = [tex] \frac{150}{10} = \frac{360}{24} = 15 [/tex]

The brewsters are saving for their daughters college days. The would like to be able to withdraw $800

Answers

Answer:

Very nice

Step-by-step explanation:

is there a question? or more information on it?

is 7/28 and 12/34 proportional

Answers

Answer:

no it is notttttttttttttt

Answer:

No

Step-by-step explanation:

Find the volume of a box that is 2 in x 4 in x 3 inch

Answers

Answer:

24in

Step-by-step explanation:

2*3*4= 24

Write an augmented matrix for the system. Then state the dimensions. x+8y−7z=12 5x+9y+5z=15 6z−3y−8x=1

Answers

Answer: Write an augmented matrix for the system. Then state the dimensions. x+8y−7z=12 5x+9y+5z=15 6z−3y−8x=1

Step-by-step explanation: x+8y-7z=12 5x+9y+5z=15 6z-3y-8x=1. - 18028782.

How many addition signs should be put between digits of the number 987654321 and where should we put them to get a total of 99?

Answers

Answer:

6 +s

Step-by-step explanation:

9+8+7+6+5+43+21 = 99

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