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dsp73
3 years ago
7

What is the result when the number 87 is increased by 3.9%?

Mathematics
2 answers:
RoseWind [281]3 years ago
8 0

Answer:

90.393

Step-by-step explanation:

salantis [7]3 years ago
7 0

Answer:

"90.393"

Step-by-step explanation:

quoted from "https://percentages.calculators.ro/22-number-increased-with-percentage-of-its-value.php?number=87&percentage_increase=3.9&new_value=90.393"

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Graham paid $87.45 for a pair of jeans. This amount included a tax of 40%. What was the cost of the jeans before tax?
kiruha [24]

The final price is the cost plus the tax.

Since we know the tax and a percent, we can write this as

T = C(1+r)

T = what Graham paid = $87.45

C = cost before tax

r = tax rate expressed as a decimal = .40

Plugging in what we know

87.45 = C (1+.4)

87.45 = C(1.4)

Divide both sides by 1.4

C = $62.46

5 0
3 years ago
I’m pretty sure I have the right answer but if you answer I will give brainiest
kumpel [21]

Answer:

your answer would actually be B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
WHAT IS THE VALUE OF X?
Tanzania [10]

It is a similar triangle so the side length of the smaller triangle (x and x-2) are in the same ratio as the bigger triangle (2x+5 and 2x-1). As the ratio is the same, you can equate them and solve for x.

7 0
2 years ago
Simplify and write the trigonometric expression in terms of sine and cosine:
asambeis [7]

Answer:

we have the expression as;

1/sin u cos u

Step-by-step explanation:

tan u = sin u/cos u

cot u = cos u/sin u

Thus;

sin u/cos u + cos u/sin u

The lcm is sin u cos u

Thus, we have that;

(sin^2 u + cos^2 u)/sin u cos u

But ; sin^2 u + cos^2 u = 1

so we have ;

1/sin u cos u

4 0
3 years ago
A square field has an area of 9,604 square yards. How long is each side of the field
Dominik [7]

Answer:

2,401 yards long

Step-by-step explanation:

9,604 divided by 4 = 2,401

6 0
3 years ago
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