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3 years ago

To determine the number of square centimeters in 8 square inches, multiply 8 by 6.45. true false

Mathematics

2 answers:

liraira [26]3 years ago

8 0

The answer would be true

Mrac [35]3 years ago

6 0

The answer would be True

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Umm what are the answers for :

navik [9.2K]

Step-by-step explanation:

21% of 36570

21/100 x 36570 = 7679.7

12.2% of 640

12.2/100 x 640 = 78.08

87.5% of 860

87.5/100 x 860 = 752.5

37.5% of 3200

37.5/100 x 3200 = 1200

4 0

3 years ago

During a baseball season, team a scores 9 runs for every 7 runs that team b scores. The total number of runs scored by both team

mrs_skeptik [129]

Answer:

∴ Team b scores is 630

And team a scores is 810

Step-by-step explanation:

Given;

Team a scores $9$ runs for every $7$ runs that team b scores.

Lets,

Think b is scores $x$ runs;

Then a is scores $x+(2\times\frac{x}{7} )$ ;

Because every 7 runs of b , a is scores more 2 runs.

Total number of runs scored by both teams is 1440

Runs score by team a + Runs score by team b=1440

$x+(2\times\frac{x}{7} )+ x =1440$

$2\times x+ \frac{2\times x}{7}=1440$

$\frac{(14\times x)+(2\times x)}{7} =1440$

$\frac{16\times x}{7} =1440$

$16\times x=1440\times 7$

$x=\frac{10080}{16}$

$x=630$

∴ Team b scores is 630

And team a scores is $630+(2\times \frac{630}{7} )=810$

5 0

3 years ago

A number that when multiplied by itself equals the original number?

yuradex [85]

Answer:

Step-by-step explanation:

Multiplying 1 · 1 = 1

8 0

3 years ago

A fence is to be built to enclose a rectangular area of 210 square feet. The fence along three sides is to be made of material t

Serhud [2]

Answer with explanation:

Let the length of rectangular fence = x meters

Let the width of the rectangular fence = y meters

Thus

$Area=x\times y=210ft^{2}...........(i)$

Now Let the total cost to construct the fence be 'C' can be obtained if we construct the shorter side with material with cost $12 per foot

$\therefore C=5\times (2y+x)+12\times x\\\\C=10y+17x...............(ii)$

Using value of x from the equation i into equation ii we get

$C=10y+17\times \frac{210}{y}$

hence to minimize the cost we differentiate both sides with respect to 'y' and equate the result to zero thus we get

$C=10y+17\times \frac{210}{y}\\\\\frac{dC}{dy}=\frac{d}{dy}(10y+\frac{3570}{y})\\\\0=10-\frac{3570}{y^{2}}\\\\\therefore y=\sqrt{\frac{3570}{10}}=18.894feet$

Thus $x=\frac{210}{18.894}=11.11feet$

Thus value of length = 11.114 feet and value of width = 18.894 feet.

4 0

3 years ago

Read 2 more answers

Which system of equations is represented by this graph

valkas [14]

Answer:

Step-by-step explanation:

It has the correct slopes and y-intercepts.

4 0

3 years ago