Mathematics High School

Terrell wrote that 5 – 4.2 = 8. Which statement about his answer is true? CLEAR CHECK 8 is wrong because a number gets smaller, not larger, when you take 4.2 from it. 8 is right because 50 – 42 = 8. 8 is right because 4.2 + 8 = 5. 8 is wrong because you cannot subtract a decimal from a whole number.

Answers

Answer 1

Answer:

a) is wrong because a number gets smaller, not larger, when you take 4.2 from it

Step-by-step explanation:

Given

[tex]5 - 4.2 = 8[/tex]

Required

Determine which of the options is true

First, we need to solve for 5 - 4.2

[tex]5 - 4.2 = 0.8[/tex]

Compare this answer with Terell's answer (8)

We observe that: [tex]0.8 \neq 8[/tex]

This implies that; Terell is wrong

The two options that support the answer being wrong are (a) & (d)

Analyzing (a):

5 should get smaller when 4.2 is subtracted from it.

This isn't the case in Terell's solution.

Hence, (a) is true

Analyzing (d):

d is wrong because a decimal can be subtracted from a whole number

Hence, (a) answers the question

Related Questions

jack is 2 years older than bob how old was bob when jack was 1

Answers

Answer:

uhhhh not born -1 year

Step-by-step explanation:

jack is 2 years older than bob jack is on so bob would not have been born yet

ILL MARK U BRAINLIEST!!!

Answers

Answer:

i think the anwser is the 2nd one

Step-by-step explanation:

Enlarge the rectangle.

When a figure is enlarged, the scale factor must be ____
Less than 0
Between 0 and 1
Greater than 1

Reduce the rectangle.

When a figure is reduced, the scale factor must be ____
Less than 0
Between 0 and 1
Greater than 1

Answers

Answer:

1: greater than 1

2:between 0 and 1

Step-by-step explanation:

Answer:

1: greater than 1

2:between 0 and 1

Step-by-step explanation:

6. What is the distance between two points
with coordinates at (840) and (20,5)?
A 35.3
C 47
B 37
D 54.1

Answers

Answer:

Step-by-step explanation:

h

Answer:

37

Step-by-step explanation:

share £30 in the ratio 1:2

Answers

Answer:

10:20

Step-by-step explanation:

I dont really know how to explain this but i beileve its 10:20

An office supply store carries an all-in-one printer with a regular price of $240. The printer is on sale at 15% off. The sales tax is 5%. If the customer uses a $20 gift card, how much of the purchase price remains?

Answers

Answer:

I'm pretty sure it's $193.20

In a movie theater 150 feet long, the floor is sloped so there is a difference of 30 feet between the front and back of the theater. What is the angle of elevation to the nearest degree? ​

Answers

Answer:

90

Step-by-step explanation:

Answer:

the angle of elevation is 11.537 degrees

Step-by-step explanation:

Is this table proportional or non-proportional? Explain your reasoning to why this table is proportional or non-proportional.

Answers

Non proportional hope this helps :)

X (0,6) y (-3,15) what are the slope and y intercept

Answers

Answer:

y = -3/9x + 6

Step-by-step explanation:

slope = -3/9x

y-intercept = 6

Find the value of h .

Answers

Answer:

xowowo2o2oeoddoxxocckckcll

NEED HELP ASAP, WILL GIVE BRAINLIEST

Which are the two geometric means between 175 and 1.4?

a.
0.2, 0.04

b.
1.4, 0.0112

c.
35, 7

d.
131.25, 65.625

Answers

Answer:

The answer is C. 35, 7

please answer need help on quiz will give brainliest answer

Answers

Answer:

A. (3,0) min

Step-by-step explanation:

Have a great day!

The cost for a box of cereal is $1.25. The store is selling the box of cereal for 1 point
$2.25. What is the percent of markup? *

Answers

:

Ss

Step-by-step explanation:

There are 160 cal in 4 ounces of ice cream how many calories will be in 6 ounces of ice cream

Answers

Answer:

There will be 240 calories in 6 ounces of ice cream.

Step-by-step explanation:

Well if you take 160 and divide it by 4 you would get 40.

Meaning every ounce is 40 calories. 1 ounce = 40 cal.

40 x 6 = 240 calories.

What is the equation of the graph [tex]y=x^3[/tex] under a vertical stretch by the factor 2 followed by a horizontal translation 3 units to the left and then a vertical translation 4 units down?

a.) [tex]y=2(x+3)^3+4[/tex]
b.) [tex]y=2(x-3)^3+4[/tex]
c.) [tex]y=2(x+3)^3-4[/tex]
d.) [tex]y=2(x-3)^3-4[/tex]

Answers

Answer:

C. y = 2 (x + 3)³ − 4

Step-by-step explanation:

y = x³

Stretch vertically by 2.

y = 2x³

Shift horizontally 3 units to the left.

y = 2 (x + 3)³

Shift vertically 4 units down.

y = 2 (x + 3)³ − 4

a leak is slowly draining water from a pool containing 324 gallons of water. How much water is remaining after 8 hours if it leaks 7 gallons per hour

Answers

268 gallons are remaining. The equation would be y=324-7x, with x being 8. 7(8) is 56, and then you take away 56 from 324, which then gives you 268 gallons remaining

Please answer correctly !!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!

Answers

Answer:

x=13

Step-by-step explanation:

15x-15

15*13=195

195-15=180

Answer:

Step-by-step explanation:

X=13 pls mark brainly

i need help please -2 + 7b - 4b

Answers

Answer:

-2+3b

Step-by-step explanation:

Point A is a representation of which number on the number line?
А
С
D
.
0
2
ОО

Answers

It is -3 brah

It is the 2nd

Answer:

its -3

Step-by-step explanation:

i take the quiz

Question is on picture

Answers

Answer:

4 or 4/1 (both the same thing just with plotting point writing 4/1 is easier for me so I know to go up 4 over 1 :) )

Step-by-step explanation:

Parallel lines have the same slope, so both lines will have the same slope. Use line 1’s points to find the slope with the formula

(y1-y2)/(x1-x2)

(5-1)/(-2-(-3)

4/1=4

The number of radians in a 540-degree angle can be written as aft, where a is a constant, What
is the value of a ?

Answers

Answer:I think Im not sure

But i will try 540 degress can be written as aft

Step-by-step explanation:

Answer: a=3

Step-by-step explanation:

trust

ANSWER CORRECTLY AND YOU WILL GET BRAINLIEST WORTH IT
Write a proportion to find how many points x a student needs to score on a test worth 80 points to get a test score of 80%

Answers

64

80               80

thats how you havw to put it

Answer:

80/100 is 80%

Step-by-step explanation:

Match the vocab word with the definition.

Answers

Answer:

1. = the first one

2. = the third one

3. = the second one

Step-by-step explanation:

Hello world can you help me with math?

Answers

Answer:

Im going to have to say C

Step-by-step explanation:

I hope this helps you out!

Slope Is --3, and (1, 2) is on the line.
The equation of the line is y

Answers

Answer:

y= -3x + 5

Step-by-step explanation:

Use the equation of a line formula:

y- y1 = m(x - x1)

where y1 and x1 are the y and x coordinates from the given point (1,2)

So y1= 2

x1= 1

And where m is the slope, -3

Plug in to get y-2 = -3(x-1)

Simplify and solve for y

y= -3(x-1)+2

y= -3x +3 +2

y = -3x + 5

What is the value of x in the equation ? (image below)

Answers

Answer: 2

Step-by-step explanation:

2.5(6x-4)=10+4(1.5+0.5x) [Work out the brackets]

15x-10=0+6+2x [Solve]

15x-10=16+2x [Convey the terms]

15x-2x=16+10 [Add up the same terms and calculate]

13x=26 [Divide both parts]

x=2

Answer:

x = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

2.5(6x - 4) = 10 + 4(1.5 + 0.5x)

Step 2: Solve for x

Distribute:                                   15x - 10 = 10 + 6 + 2xCombine like terms:                   15x - 10 = 16 + 2xSubtract 2x on both sides:        13x - 10 = 16Add 10 to both sides:                 13x = 26Divide both sides by 13:             x = 2

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    2.5(6(2) - 4) = 10 + 4(1.5 + 0.5(2))Multiply:                               2.5(12 - 4) = 10 + 4(1.5 + 1)Subtract/Add:                      2.5(8) = 10 + 4(2.5)Multiply:                               20 = 10 + 10Add:                                     20 = 20

Here we see that 20 does indeed equal 20.

∴ x = 2 is a solution of the equation.

Please answer correctly !!!!!!!!!!!!!!!! Will
Mark brainliest !!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

Since the lines are parallels and should equal 180 degrees, with the other being 140 degrees, I would think it's 40 degrees to make the 180. I hope  this is right. It's been a while for geometry.

Please help please help please help

Answers

Answer:

b

Step-by-step explanation:

Felix has $50 in a savings account that earns 5% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?

Answers

Answer:

$55.13

Step-by-step explanation:

50 * 1.05 = 52.5

We do this step twice because the interest is for 2 years.

52.5 * 1.05 = 55.125

This rounds up to 55.13, your final answer!

CAN SOMEBODY HELP ME?
I’ll mark brainliest answer because nobody is helping me.

Answers

Answer:

-415

Step-by-step explanation:

its going back 5 every time. -5*86=-430 but you have to take away the 3 spots since you already have them filled. 86-3=83. 83*-5=-415

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