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3 years ago

To convert a distance of 2790 feet to miles which ratio could u multiply by

1 answer:

5 0

To convert a distance of 2790 feet to miles, which ratio could you multiply by?
remember that 1 miles=5280 feet.

so the correct answer is :
1/2 miles .
good luck

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In ∆PQR, p=13 inches, q=18 inches and r= 12 inches. Find the area of ∆PQR to the nearest square inch.

sveta [45]

Given data:

The first side of the triangle is p=13 inches.

The second side of the triangle is q=18 inches.

The third side of the triangle is r= 12 inches.

The semi-perimeter is,

$\begin{gathered} s=\frac{p+q+r}{2} \\ =\frac{13\text{ in+18 in+12 in}}{2} \\ =21.5\text{ in} \end{gathered}$

The expression for the area of the triangle is,

$\begin{gathered} A=\sqrt[]{s(s-p)(s-q)(s-r)_{}} \\ =\sqrt[]{21.5\text{ in(21.5 in-13 in)(21.5 in-18 in)(21.5 in-12 in)}} \\ =\sqrt[]{(21.5\text{ in)(8.5 in)(3.5 in)(9.5 in)}} \\ =77.95in^2 \end{gathered}$

Thus, the area of the given triangle is 77.95 sq-inches.

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1 year ago

The ages of four cousins are consecutive integers. Let the integers equal n, n+1, n+2, n+3. The sum of their ages is 26. How old

Elena-2011 [213]

The answers would be n=5 n+1=6 n+2=7 n+3=8 because the equation is 4n+6=26. You add all the variables and numbers up to get that equation. Then you subtract 6 from 26 to get 20. Finally you divide 20 by 4 to get n=5. To get all the ages you replace n with 5 and complete the equation. For example n+1 is actually 5+1.

3 0

3 years ago

Whats the slope intercept form

In-s [12.5K]

Answer:

y=1+0b

Step-by-step explanation:

8 0

3 years ago

If x+y = 10<br>and xy 21<br>find 2(x² + y ² )<br>

Sati [7]

Answer:

158

Step-by-step explanation:

2(x square + y square)

2 (X+y) square -2 xy

2(10) square -2(21)

2×100-42

200-42

=158

7 0

3 years ago

r In who area should he operations be performed 10 me expression (6+2 + x, +, + +, +, x, + +, ix + +,+.+,x Which operation shoul

Ipatiy [6.2K]

To solve problem #1 follow the steps below...

Step 1:Think back to PEMDAS

P=Parentheses
E=Exponents
M=Multiplication
D=Division
A=Addition
S=Subtraction

(Think of M,D as brothers and whichever once comes first in the problem you do.This rule also applies to A,S)

Step 2: Look back to your problem

(6 divided by 2 plus 1) plus 10x2

Step 3: Start with the parentheses

6 divided by 2 plus 1

Step 4: Do the division first

6 divided by 2=3

Step 5:Now the addition

3 plus 1=4

Step 6: Rewrite the problem

4 plus 10x2

Step 7: Do the multiplication

10x2=20

Step 8: Rewrite your problem again

4 plus 20

Step 9: Solve

4 plus 20=24

Step 10: Look back at your work and see what order your operations were done in

.Division
.Addition
.Multiplication
.Addition

Step 11: Compare your order to the choices

Answer: b

I hope this helps and if any false information was given I apologize in advance.

7 0

3 years ago