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3 years ago

5

The school secretary orders a new printer and pays $310.30 after tax. The tax rate is 7%. What was the original price of the pri

nter?

1 answer:

Gwar [14]3 years ago

6 0

Answer:

$288.58

Step-by-step explanation:

310.30/100=3.10

3.10*7=21.72

310.30-21.72=288.58

Therefore the answer is $288.58

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Solve for x.<br> X +5<br> 4x + 15<br> x = [?]

Darina [25.2K]

Answer:

The answer is 70x

Step-by-step explanation:

simplify step-by-step.

x+54x+15x

Combine Like Terms:

=x+54x+15x

=(x+54x+15x)

=70x

Answer:

=70x

8 0

3 years ago

On a coordinate grid , carries house is located 3 blocks to the right and 4 blocks up from (0,0). mikes house is located 2 block

stiv31 [10]

Carries house (3,4)
mikes house (1,2)

8 0

3 years ago

22. What is an equation of the parabola with vertex at the origin and focus (−4, 0)?

miv72 [106K]

The correct answer for the question shown above is the second option (Option b), and the option cwhich is:

b) x = -1/16y^2
c) y=-1/16x^2

The explanation is shown below:

The focus of a parabola is (h,k+1/4a), then, you have:

h,k= (0,0)
1/4a=1/4(-1/16)

Then, you obtain:

1/4a=-4

Therefore, the focus of the equation of the parabola x = -1/16y^2 and the parabola y=-1/16x^2 <span>is F(0-4)
</span>
So, as you can see, the correct answer is the options mentioned before, the option b and the option c.

7 0

3 years ago

In the arithmetic sequence, -12, -17, -22, -27... which term has a value of -68?

RSB [31]

Answer:

-68 is not a term in the given sequence

Step-by-step explanation:

The given sequence is -12, -17, -22, -27...

There is a common difference of d=-17--12=-5

The explicit rule for this sequence is $f(n)=-12-5(n-1)$

Or $f(n)=-5n-7$

To find the term that has a value of -68 we equate the explicit formula and solve for n.

$-68=-5n-7$

$\implies -68+7=-5n$

$\implies -61=-5n$

$n=\frac{61}{5} =12.2$

The position should be a natural number.

Since n is a decimal, it tells us that -68 is not a term in the given sequence

7 0

4 years ago

You are standing next to a really big circular lake. You want to measure the diameter of the lake, but you don't

blagie [28]

The diameter is about 1,275.4 because D=C/pi so 4007\pi=1275.4

8 0

3 years ago