Mathematics High School

1 – 2x + 3y for when X = – 2 and y = – 5

Answers

Answer 1

Answer:

-12

Step-by-step explanation:

1-2x+3y

1-2(-2)+ 3(-5)

1-4-9

= -12

Related Questions

kayla and Jane helped Mr.John fit kids in the auditorium. There was 603 kids,and each row can fit 31 kids. How many rows do they need to use?

Answers

Answer:

Around 19 rows

Step-by-step explanation:603/31= 19.40 so I'm not too sure

Find the equation of this line.

Answers

y=2x+1
Hope this helps!

Answers ASAP THANKS!!!

Answers

the answer would be x<3/2

What is the equation for Having your boss pay you 10,000 a day for 3 full weeks

Answers

Answer:

210,000 units

Step-by-step explanation:

Let d represent each day

Let p represent amount paid

p = 10000x

If paid for 3 full weeks.

3 weeks is 3x7 =21 days so:

p = 10000x

p = 10000(21)

p = 210000 units

Answer:

210,000

Step-by-step explanation:

10,000x(3x7)

10,000x21=210,000

There are 24 hours in a day. James sleeps 8 hours each night what fraction of the day does James sleep?

Answers

Answer:

1/3 of the day

Step-by-step explanation:

8/24 simplifies to 1/3

8/24 (hours slept by james) = 1/3 (simplified)

[tex]\sf -10-11x+24=3x[/tex]

Answers

Answer:

- 14x + 14

Step-by-step explanation:

- 10 - 11x + 24 - 3x ← collect like terms

= (- 11x - 3x) + (- 10 + 24)

= - 14x + 14

Find the quotient of 1/6 and 2/9

Answers

Answer:

3/4 or 0.75

Step-by-step explanation:

When dividing- quotient- fractions, remember keep, change, flip

Keep- keep the first fraction

Change- change the division sign into a multiplication sign

Flip- flip the second fraction

So your problem really is:

[tex]\frac{1}{6} *\frac{9}{2}[/tex]

Which is: 9/12 or 3/4

The answer is 3/4
You multiply by the reciprocal Then reduce the numbers then you multiply

ft What is the area of one square?

Answers

Answer:

area= length×width

since it is a cube or in this case, a square all sides are the same. meaning all sides are 2ft. now you must multiply 2ft×2ft= 4ft inside. the area is 4ft

Answer:

If a square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches.

Step-by-step explanation:

If this is wrong I'm sorry

On average, a squirrel lives to be 6.5 years old. The lifespan of a squirrel may
vary by as much as 1.5 years. What is the range of ages that a squirrel lives?

Answers

Answer:

5-8

Step-by-step explanation:

6.5-1.5 = 5

6.5+1.5= 8

where is the √ 125 on a number line

Answers

Answer:

im 11 and

Step-by-step explanation:

i just need points i have -32

Luciano can type 190 words in 5 minutes. Which of the following ratios are in a proportional relationship with Luciano's typing speed?

Select all that apply.

38/1

74/2

230/45

290/105

570/15

950/25

Answers

Answer:

38/1570/15950/25

Step-by-step explanation:

The given rate, in words per minute, is ...

(190 words)/(5 min) = 38 words/min

The offered ratios are ...

38/1 = 38 . . . . proportional

74/2 = 37 . . . . NOT proportional

230/45 ≈ 5.11 . . . NOT proportional

290/105 ≈ 2.76 . . . NOT proportional

570/15 = 38 . . . . proportional

950/25 = 38 . . . . proportional

need help asap :( i don’t understand it, it’s confusing lol

Answers

Answer:

At the end of the 4th round

x=4

Step-by-step explanation:

Put in a value for x for both equations

3(4) + 50 = 62

4(2)^4 = 64

62<64

So in round 4, Zavion will have more points

What is the greatest common factor of 31 and 45?

Answers

The Answer is 15,good look!

Greatest Common Factor of 31 and 45 is :

(i) 1

Evaluate the function.
f(t)=-2t - 1; Find f(-9)

Answers

Answer:

Step-by-step explanation:

substitute t = - 9 into f(t) , that is

f(- 9) = - 2(- 9) - 1 = 18 - 1 = 17

You need to buy new soil for your garden. Find the area of the garden. Use the dimensions shown in the picture.

A triangle with side lengths 16.75 meters, 11.5 meters, and 19 meters. The height of the triangle is 10 meters.
CLEAR CHECK

95 square meters

190 square meters

47.25 square meters

57.25 square meters

Answers

Answer:

95 square meters

Step-by-step explanation:

I am answering this question assuming 19 is the base because it is the longest side on the triangle. (there is no picture provided)

The formula for area of triangle is base * height * 1/2

So 19 * 10 *1/2 is 95.

2. The wholesale price of the skirt is $12 and the retail price is $24.
How much is the markup?
nah
So ein
What percent of the wholesale price is the markup?

Answers

With the sale price being $12 and the retail price being 24, it is a 12 dollar markup or 50% considerably.

PLEASE HELP ME I WILL GIVE A BRAINLIST

Answers

First, we can get rid of d(x) simply by looking at it because we can tell it's linear (it's a straight line). If we look at the table, we can see a(x) is also linear because it has a steady rate of growth. b(x) and c(x) both represent exponential growth. The curved shape of b(x) shows us this is exponential growth, and the exponent in c(x) tells us it's also exponential.

Hope this helps!

Answer: b(x) and c(x)

Step-by-step explanation:

Due in 1 min please help!!!!!
;)

Answers

(7^1/5)^5
=(7^5/5)
=(7^1)
=7 therefore C

Leon has to drive 36 miles to work. If he can average a speed of 48 miles per hour, about how long does it take him to get to work each day? (Hint: Use the formula d = rt.)

1. a quarter of an hour
2. three-fourths of an hour
3. half an hour
4. more than an hour

Answers

Answer:

i think the answer is 45 mins sorry if im wrong

Help help help help math math

Answers

Answer:

formula:

pie x radius squared

3 x 15^2 = 675 ft^2

Help: Justify why one relation is a function and why the other is not. Relation 1:
(1,2) (2,4) (3,6) (4,8)

Relation 2: (1, 3), (4, 2), (7, 1), (4,

Answers

Relation 1 is a function because we don't have any repeated x values. Each input goes to exactly one output.

On the other hand, relation 2 is not a function because x = 4 repeats itself. The input x = 4 leads to more than one output.

Solve by factoring : x^2-5x-36=0
Part III: The sum of your two factors must be -5. Which of your factor pairs
above could produce this sum? (2 points)

Answers

Answer:

-9 and +4 are the factors

Step-by-step explanation:

-9 times +4 is -36 and if you add +4 to -9, you get -5.

After this your function will look like this:

[tex]x^2-9x+4x-36[/tex]

and then:

[tex]x(x-9)+4(x-9)[/tex]

so the answer is:

[tex](x-9)(x+4)[/tex]

the correct answer is x= 9 and -4 :) hope this helps

Simplify this expression
[tex]\frac{(a^8a^6)}{a^2} ^\frac{1}{7}[/tex]

Answers

Answer:

Step-by-step explanation: The simplification calculator allows you to take a simple or complex expression and simplify and reduce the expression to it's simplest form.

Using the numbers 5. 8. and 24, create a problem using no more than four operations (addition,
subtraction, multiplication, division, square, square root, cube, cube root) where the solution
will be an irrational number. Explain why the result of your operations is an irrational number

Answers

sqrt(24 - 5 - 8) = sqrt(11), which is irrational as 11 isnt a square number

estimate the area please.

Answers

Answer: You need to count how many squares are shaded (at least half of it), therefore the area is 32 square units.

It is 32 have a great day

Find the hypotenus of the following triangles.

Answers

Answer:

a 17, b 10, c 15, d 20

Step-by-step explanation:

a^2+b^2=c^2

64+225 = 289

a = 17

36+64 = 100

b = 10

81+144 = 225

c = 15

256+144 = 20

Hope that helps

Tien works in a music store and earns 10.4% commission on each sale. If Tien sells a guitar and earns $142.25, what is the price of the guitar? Round your answer to the nearest cent.
$1,367.79
$14.79
$13.68
$1,492.79

Answers

14.79 because you convert 10.4% to a decimal which is .104 and then multiply that by 142.25 to get 17.794 which rounds up to 14.79

Find the area of the circle. Round your answer to the nearest tenth. Use 3.14 or 22 for it mm area: about mm

Answers

Answer:

3.1

Step-by-step explanation:

To round a number to the nearest tenth , look at the next place value to the right (the hundredths). If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the tenths place, and then remove all the digits to the right.

Write the equation of the line graphed below in the form y = mx + b

Answers

Answer:

y= -1/4x + 2

Step-by-step explanation:

so basicly find the slope first which is "m"

to do that do rise/run or do y2-y1/x2-x1

rise over un in this case is -1/4

slope is negative so its -1/4 = m

that find y intercept which is "b"

in this case its 2

then put it in formula

y=mx+b

y= -1/4x + 2

Tom’s weekly salary increased from $240 to $300. What was the percent change?

Answers

Answer: 25%

Step-by-step explanation:

Answer:

25% increase

Step-by-step explanation:

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