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Pavel [41]
3 years ago
10

The Eiffel Tower in Paris France has 674 steps that go from the ground to second floor there are 328 steps from ground to first

floor how many steps are there from the floor to the second floor
Mathematics
1 answer:
Radda [10]3 years ago
3 0

Answer:

346

Step-by-step explanation:

i think

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A store pays $270 for a bike and there is a 45% markup. What is the selling price (total price) of the bike?
I am Lyosha [343]
<h3>Answer:  $391.50</h3>

Work Shown:

1.45*270 = 391.50

The multiplier 1.45 represents a 45% increase

Think of it as 1.45 = 1+0.45 = 100% + 45%

5 0
2 years ago
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Linear system word problem
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Good job, you got the equations! XD

I'll just help you solve

Multiply the 2nd row by 9
<span>9x+9y=117</span>
<span><span><span>9x+27y=207

</span></span></span>Subtract the 2nd row from the 1st row
<span><span><span>−18y=−90
</span></span></span>Divide both sides by <span>−18</span>
<span><span><span>y=<span><span>−90/</span><span>−18
</span></span></span></span>Two negatives make a positive
<span><span>y=<span><span>90/</span><span>18</span></span></span><span>​​</span></span><span>
y = 5

Substitute 5 into an equation
9x+9(5)=11<span>7
</span>9x+45=11<span>7
</span>Subtract <span>45</span> from both sides
<span><span><span>9x=117−45

</span></span></span>9x=7<span>2
</span>Divide both sides by <span><span>9</span></span>
x = ___

Hope this will help​​</span></span>

3 0
3 years ago
If -2 and 3 are zeroes of quadratic polynomial xsquare + (a+1)x+b then find the value of and b
ohaa [14]

Answer:

a = - 2, b = - 6

Step-by-step explanation:

Substitute the values of the zeros into the polynomial and equate to zero.

x² +(a + 1)x + b

x = - 2 → (- 2)² - 2(a + 1) + b = 0 , that is

4 - 2a - 2 + b = 0

2 - 2a + b = 0 ( subtract 2 from both sides )

- 2a + b = - 2 → (1)

x = 3 → 3² + 3(a + 1) + b = 0, that is

9 + 3a + 3 + b = 0

12 + 3a + b = 0 ( subtract 12 from both sides )

3a + b = - 12 → (2)

Subtract (1) from (2) term by term to eliminate b

5a = - 10 ( divide both sides by 5 )

a = - 2

Substitute a = - 2 into either of the 2 equations and evaluate for b

Substituting into (2)

3(- 2) + b = - 12

- 6 + b = - 12 ( add 6 to both sides )

b = - 6

Thus a = - 2 and b = - 6

4 0
3 years ago
In this journal assignment, you will deepen your understanding of what makes a number “rational” or “irrational.” Use the follow
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1) Rational numbers are the numbers which can be expressed as the fraction.

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2) An Irrational number is the number which can't be expressed in the form of fraction, it repeats upto infinite digits.

Hope this helps!
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3 years ago
If the mean height of college males was 70" with a standard deviation of 3", approximately what percentage of college males woul
ozzi
Multiply 3 & 70 and divide by the answer of 6'1 6'4 you multiply them then your answer
8 0
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