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USPshnik [31]
2 years ago
10

7x-2y-1= The x=3 The y is= 4

Mathematics
1 answer:
Damm [24]2 years ago
7 0

Answer:

=12

Step-by-step explanation:

You just plug in the variables

7x-2y-1

7(3)-2(4)-1

simplify the expression

solve

which will give you 12

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6 0
2 years ago
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If f(x) = 6x-4 what is the value of f(8)
Vinvika [58]

Answer:

f(8) = 44

Step-by-step explanation:

f(x) = 6x-4

Let x = 8

f(8) = 6(8) - 4

Multiply

     = 48 -4

    = 44

8 0
2 years ago
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the price of milk in 2013 was around $3.28 a gallon. This was eight times as much as you would have probably paid for a gallon o
Jlenok [28]

The cost of the milk is \fbox{\$\,0.41{\text{ a gallon}}} in 1950s.

Further explanation:

The price of milk in 2013 was around \$3.28 a gallon.

And it is given that this was eight times as much as one can would have probably paid for a gallon of milk in the 1950s.

It is given that the price of milk in 2013 is \$3.28 a gallon.

Assume the price of milk in 1950 be \$x a gallon.

Now, given that 8 times of x is the price of milk in 2013.

Therefore, 8x is the price of milk in 2013 and also \$3.28 is the price of milk in 2013.

Equating 8x and  \$3.28 equal as both are the price of milk in 2013 as,

\begin{aligned}8x&=3.28\\x&=\frac{{3.28}}{8}\\x&=0.41\\\end{aligned}

Here, x is the price of milk in 1950.

Therefore, the cost of the milk is \fbox{\$\,0.41{\text{ a gallon}}} in 1950s.

Learn more :

1. Problem on the slope-intercept form brainly.com/question/1473992.

2. Problem on the center and radius of an equation brainly.com/question/9510228

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Answer details:

Grade: Middle school

Subject: Mathematics

Chapter: Linear equations in one variable

Keywords: Cost, gallon, milk, linear equation in one variable, polynomials, variables, real numbers, degree of polynomials, equations, expressions, coefficients, zero polynomial, constants, integers, roots of polynomials.

6 0
2 years ago
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Rewrite 8.24 × 10'6 in standard notation.
pshichka [43]
You need to add 6 "0" to the end
8,240,000
5 0
2 years ago
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How many fifths are there in a pound
Art [367]
How many fifths are in a pound?

Well, you have to split it into five parts. 

So 100=1 pound

100÷5=20⇒20%

So you change 20% to a decimal

20%⇒20⇒.20 (divide by 100)

You then multiply

There are 16 ounces in a pound

16×.20=3.2ounces(oz)

There are five fifths in a pound or to be more exact, there are five 3.2oz in a pound
6 0
2 years ago
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