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2 years ago

I need some help pls thx

Mathematics

1 answer:

Tresset [83]2 years ago

8 0

Answer:

Graph A represents a function

Step-by-step explanation:

in a function every input will have its own specific output.

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Noah is buying a pair of jeans and using a coupon for 10%off. The total price is $56.70 which includes $2.70 in sales tax. Noah’

lora16 [44]

Answer:

See below.

Step-by-step explanation:

So, we know that Noah's purchase can be modeled by the equation:

$x-0.1x+2.70=56.70$

Part 1)

The solution to the equation will be the value of x.

In this case, x will represent the original price of the jeans.

We know that Noah has a coupon for 10% off the original price of the jeans.

So, 0.1x will represent how much of the original price Noah gets a a discount on.

Therefore, (x - 0.1x) represents the total cost of the jeans after the coupon.

So, x is our original price of the jeans.

Part 2)

To verify that 70 is not a solution, we can simply substitute 70 for x and check whether or not the equation is true. So:

$(70)-0.1(70)+2.7\stackrel{?}{=}56.70$

Multiply:

$70-7+2.7\stackrel{?}{=}56.7$

Subtract:

$63+2.7\stackrel{?}{=}56.7$

Add:

$65.7\neq56.7$

However, we can verify that 60 is the solution by substituting. So, substitute 60 for every x:

$(60)-0.1(60)+2.7\stackrel{?}{=}5.7$

Multiply:

$60-6+2.7\stackrel{?}{=}56.7$

Subtract:

$54+2.7\stackrel{?}{=}56.7$

Add:

$56.7\stackrel{\checkmark}{=}56.7$

So, 60 is indeed the solution and is the value of x.

So, this means that $60 was the original price of the jeans.

8 0

3 years ago

Read 2 more answers

What is the value of x ?

statuscvo [17]

Here, Sin Ф = P / H
Sin 31 = x / 430
0.515 = x /430
x = 430 * 0.515
x = 221.45

In short, Your Answer would be 221.45

Hope this helps!

8 0

2 years ago

5. Write an equation of the line that passes through (4,−1) and is parallel to the line y=3x+7.

k0ka [10]

Answer:

y =3x-1

Step-by-step explanation:

Parallel lines have the same slope, but different y intercepts :)

7 0

3 years ago

The probability that a professional baseball player will get a hit is 1/3. Calculate the exact probability that he will get at l

Evgesh-ka [11]

It is given here that there is 1/3 probability of professional baseball player will get a hit. Hence if at least three hits are gained out of 5 attempts, the calculation goes: 5C3* (1/3)^3*(2/3)^2 + 5C4* (1/3)^4*(2/3)^1 +5C5 *(1/3)^5*(2/3)^0 equal to 0.21.

3 0

3 years ago

HELP!!!!!!!!!!!!GIVING BRAINLIEST!!!!!!!!!!!!!!!

notsponge [240]

Answer:

# of terms: 2

inConstant(s): might be wrong but i think its 5

Coefficient(s): might be y itself but i dont know

Highest degree: 5

I did what I could but this number is not factorable with rational numbers

8 0

2 years ago

Read 2 more answers