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babunello [35]
2 years ago
7

Which statements about mass are true?

Mathematics
1 answer:
viva [34]2 years ago
5 0

Answer:

1=false 2=false 3=true 4=true 5=false 6=false

Step-by-step explanation:

You might be interested in
Which is the last operation performed when evaluating (8-2x)+4
jek_recluse [69]
Short Answer: Combine like terms
Remark

Just from what I see here, remove the brackets first and combine like terms second.

Discussion
8 - 2x + 4     The like therms are 8 and 4 First step
12 - 2x          That's the answer. Don't go any further. 2nd and last step



3 0
3 years ago
Do the math please. i need it nowwwwww
denis-greek [22]

Using algebraic expressions, the value of x in the diagram given is calculated as: x = 4

<h3>What is an Algebraic Equation?</h3>

An algebraic equation is an equation that has an unknown variable (i.e. x) and digits, which can be used to solve a problem.

Algebraic expression for Mat A is: 4x + 3

Algebraic expression for Mat B is: 2x + 11

We would have the following algebraic equation:

4x + 3 = 2x = 11

Solve for the value of x

4x - 2x = 11 - 3

2x = 8

x = 8/2

x = 4

Learn more about algebraic equations on:

brainly.com/question/2164351

#SPJ1

6 0
2 years ago
Chad washes windows after school to make some extra money. He charges $5.50 to wash each window. If the customer provides the su
Fynjy0 [20]
The second option. The 5.5w part shows that its $5.50 times each window. The -3.25 is because he deducted 3.25 from the total. And then you have the price that he got on the other side. 

Here's the work to find the windows in case you want it:
5.5w-3.25=35.25
5.5w=38.50
w=7
He washed 7 windows
3 0
3 years ago
Read 2 more answers
Karen earns $54.60 for working 6 hours. If the amount she earns varies directly with the
Andrei [34K]

Given:

Karen earns $54.60 for working 6 hours.

Amount she earns varies directly with the  number of hours she works.

She need to work to earn an  additional $260.

To find:

Number of hours she need to work to earn an  additional $260.

Solution:

Let the amount of earnings be A and number of hours be t.

According to question,

A\propto t

A=kt     ...(i)

where, k is constant of proportionality.

Karen earns $54.60 for working 6 hours.

54.60=k(6)

Divide both sides by 6.

\dfrac{54.60}{6}=k

9.1=k

Put k=9.1 in (i).

A=9.1t

Substitute A=260 in the above equation.

260=9.1t

Divide both sides by 9.1.

\dfrac{260}{9.1}=t

28.5714=t

t\approx 29

Therefore, she need to work extra about 29 hours to earn an  additional $260.

3 0
3 years ago
Help ASAP I’ll mark you as brainlister PLEASE!!’
Alex17521 [72]

Answer:

A = 76.8 yd²

Step-by-step explanation:

The area (A) of a regular polygon is calculated as

A = \frac{1}{2} pa ( p is the perimeter and a the apothem )

Here p = 8 × 4 = 32 yd and a = 4.8 yd , then

A = \frac{1}{2} × 32 × 4.8 = 16 × 4.8 = 76.8 yd²

8 0
3 years ago
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