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2 years ago

Which of the following expressions are equivalent to -3 x 3 x -4/9

2 answers:

6 0

The answer is (A) because if you look closely you can tell that they are the same and I also took a test and got this answe

beks73 [17]2 years ago

3 0

None of the above! It’s always none of the above if it’s an option

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Brad has eight more nickels than quarters. Altogether he has $6.10. how many of each does he have

wlad13 [49]

Brad have 19 quarters and 27 nickels.

Step-by-step explanation:

Given,

Total worth of nickels and quarters = $6.10 = 6.10*100 = 610 cents

One quarter = 25 cents

One nickel = 5 cents

Let,

x represent the number of quarters.

y represent the number of nickels.

According to given statement;

25x+5y=610 Eqn 1

y = x+8 Eqn 2

Putting value of y from Eqn 1 in Eqn 2

$25x+5(x+8)=610\\25x+5x+40=610\\30x=610-40\\30x=570$

Dividing both sides by 30

$\frac{30x}{30}=\frac{570}{30}\\x=19$

Putting x=19 in Eqn 2

$y=19+8\\y=27$

Brad have 19 quarters and 27 nickels.

Keywords: linear equation, subtraction

Learn more about subtraction at:

#LearnwithBrainly

7 0

3 years ago

What is 7539 increased by 3200

ddd [48]

Increased just means +
10739 is the sum

3 0

3 years ago

A linear revenue function is R = 12x. (Assume R is measured in dollars.) what is the slope? What is the revenue received from se

kherson [118]

Answer:

12 ; 12 dollars

Step-by-step explanation:

Data provided in the question:

Revenue function, R = 12x

R is in dollars

Now,

The slope can be found out by differentiating the above revenue function w.r.t 'x'

thus,

$\frac{\textup{dR}}{\textup{dx}}$ = $\frac{\textup{d(12x)}}{\textup{dx}}$

slope = 12

Now, for the second case of selling one more unit i.e x = 1, the revenue can be obtained by substituting x = 1 in revenue function

therefore,

R = 12 × 1 = 12 dollars

6 0

3 years ago

Which expression is equivalent to 63 + 27?

azamat

The answer would be B.

5 0

3 years ago

Equation of y-intercept of 0 with a slope of 1 in slope intercept form

pochemuha

Y=mx+b M equals the slope B equals the y-intercept So Y=1x+0

4 0

3 years ago

Read 2 more answers