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Blizzard [7]
2 years ago
9

A contractor is buying doors for a new office building. If two doors are

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
6 0

Answer:

562 $ for nine doors

Step-by-step explanation:

You might be interested in
7.5x10^5-2.9x10^4=? having trouble
alexira [117]
721,000 should be the answer. took me a little while though haha
7 0
2 years ago
An actor invests some money at 7%, and $48000 and more than twotimes the amount of 9%. The total annual interest earned from the
forsale [732]

Answer:

At 7% $54,000

At 9% $156,000

Step-by-step explanation:

Let x be the amount invested at 7%, Then 2x + 48000 will be the amount invested at 9%

We know that:

7% = 0.07 & 9% = 0.09

So we can write the interest equation as follows:

0.07x + 0.09 (2x + 48000) = 17820

0.07x + 0.18x + 4320 = 17820

0.25x + 4320 = 17820

Subtracting 4320 from both sides of the equation we get:

0.25x = 17820 - 4320

0.25x = 13500

Dividing both sides of the equation by 0.25 we get:

x = 13500 / 0.25

x = $54,000 invested at 7%

&

2 x 54000 + 48000

= $156,000 invested at 9%

Hence the amount invested at 7% is $54,000.

& the amount invested at 9% is $156,000.

5 0
3 years ago
Senna was having a party for 15 friends. She bought 3 jars of
rodikova [14]

Answer:

chicken

Step-by-step explanation:

cuz im like that

5 0
2 years ago
Read 2 more answers
The measure of ZBC = 180°, and the length of AD and Date tool, which is the measure of ZACD?
Julli [10]

Answer:

B. 45°

Step-by-step explanation:

recall that Thales' theorem states that the diameter of a circle always subtends a right angle on any point on the circle.

what this means is that if ABC is the diameter of the circle, then AD and DC always meet at the circumference at 90°

in this case, if ∠ADC is 90° (by thales theorem), and AD = DC, then we have an isoceles triangle.

This also means that the base angles of the isoceles triangle, ∠DAC and ∠ACD must be equal.

recall that all interior angles of a triangle add up to 180°

180° = ∠ADC + ∠DAC +∠ACD

180° = ∠ADC + 2 ∠ACD

180° = 90° + 2 ∠ACD

2 ∠ACD = 90°

∠ACD = 45°

8 0
2 years ago
Which term has a degree of 8?<br> A.8xy<br> OB. -22³5<br> OC. 9ry<br> OD. 3x²y4
Damm [24]

The term that has a degree of 8 is -2x³y⁵

<h3>How to find the degree of a polynomial?</h3>

The polynomial above is a monomial. A monomial is a polynomial with a single term.

Therefore, the degree of a monomial is the sum of the exponents of all its variables.

In other words, a monomial is a number, a variable or a product of a number and a variable where all exponents are whole numbers.

Hence, the term with degree of 8 is -2x³y⁵

Degree = 0 + 3 + 5 = 8

learn more on degree here: brainly.com/question/14939467

#SPJ1

6 0
1 year ago
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