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topjm [15]
3 years ago
12

an object is 279.4 centimeters wide. if you divide the object into 10 equal parts, how wide will each part be?

Mathematics
2 answers:
Ivenika [448]3 years ago
8 0
Cercel ben Türkçe biliyorum ben Türkçe
alekssr [168]3 years ago
3 0
Very easy my dude.
279.4 / 10 = 27.94 cm.
Have a great day!
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A = √7 + √c and b = √63 + √d where c and d are positive integers.
mrs_skeptik [129]

Answer:

\displaystyle a:b=\frac{1}{3}

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]

b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]

\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]

From [3]:

9c=d

Replacing into [2]:

b=\sqrt{63}+\sqrt{9c}

We can express 63=9*7:

b=\sqrt{9*7}+\sqrt{9c}

Taking the square root of 9:

b=3\sqrt{7}+3\sqrt{c}

Factoring:

b=3(\sqrt{7}+\sqrt{c})

Find the ration a:b:

\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}

Simplifying:

\boxed{a:b=\frac{1}{3}}

3 0
3 years ago
What is the y-int of the line given by the equation y=3x-11
cupoosta [38]

the y-intercept would be -11 because slope-intercept formula is always like this;   y = mx+b. b is y-intercept and m is slope. so therefore, it would be -11

4 0
3 years ago
Alvin is 13 years older than Elga the sum of their age is 55 what is elgas age​
Makovka662 [10]

Answer:

Elga is 42 years old

Step-by-step explanation:

55-13=42

5 0
3 years ago
Sales tax 7% how much will I be charged on a $85
CaHeK987 [17]
Tax= 85 times 7% = 85 times 0.07

tax =85 times 0.07 = 5.95
  
tax = 85 = 5.95 2= 90.95
  
   the answer is   90.95
7 0
3 years ago
Use the quadratic formula to solve x2+7x+3. Show all of your work. Then describe the solution.
Mariana [72]

Answer:

Step-by-step explanation:

The coefficients of the quadratic x^2 + 7x + 3 are a = 1, b = 7 and c = 3.

The discriminant is b^2 - 4ac, or 49 - 4(1)(3), or 49-12, or 37.

Because the discriminant is positive, we know that this quadratic equation has two real, different solutions.

      -7 ± √37

x = ---------------   =>   x = (-7 + √37)/2  and  x = (-7 - √37)/2

             2

In words:  This quadratic equation has two real, unequal solutions involving the radicand 37.

7 0
3 years ago
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