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Vika [28.1K]
3 years ago
9

Find the ratio. Sam ran 3520 feet in 20 minutes.

Mathematics
2 answers:
Rufina [12.5K]3 years ago
8 0
3520:20 should be correct
TEA [102]3 years ago
5 0
I am sure it is 176:1


cause you divide 3520/20
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Solve the system of equations using row operations. Write your answer in the form (x, y).
Sonja [21]

Answer:

(5, - 4 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = - 2 → (1)

3x - y = 19 → (2)

Multiplying (2) by 3 and adding to (1) will eliminate the y- term

9x - 3y = 57 → (3)

Add (1) and (3) term by term to eliminate y

(2x + 9x) + (3y - 3y) = (- 2 + 57), that is

11x = 55 ( divide both sides by 5 )

x = 5

Substitute x = 5 into either of the 2 equations and solve for y

Substituting into (1)

2(5) + 3y = - 2

10 + 3y = - 2 ( subtract 10 from both sides )

3y = - 12 ( divide both sides by 3 )

y = - 4

Solution is (5, - 4 )

8 0
3 years ago
Find value of p in..6p-1/3(p+1)=8(p+1/32​
puteri [66]

The answer is,

p =  -  \frac{1}{4}

6 0
3 years ago
an 8 in. by 10 in. photo is reduced so that the width (the shorter dimension) is 3 in. what is the length of the reduced photo
Sindrei [870]

Answer:


Step-by-step explanation:

The length can be found by setting up a proportion.  If the width is reduced by some ratio, then the length will share the same ratio.

3 / 8 =  x / 10                    Multiply both sides by 10.

3 * 10 / 8 = x                     Multiply first

30/8 = x                            Divide next. You don't need to do it in this order.

3 6/8                                 Simplify

3 3/4                                 Give another choice

3.75                                

The length = 3.75 inches

If none of these are correct, please leave a note with your choices.

6 0
3 years ago
The lengths of the sides of a triangle are given below. Classify the triangle as acute, obtuse, or right.
enot [183]

Answer:

  • B. Obtuse Triangle

Step-by-step explanation:

<u>Use Pythagorean to identify if the triangle is right:</u>

  • 9² = 7² + 3²
  • 81 = 58

We see the triangle is <u>not </u>right and the difference of the squares tells us the angle opposite to side with measure of 9 is greater than 90°.

It means the triangle is <u>obtuse</u>.

Correct choice is B

8 0
3 years ago
PLEASE HELP PLEAS PLS PLS PLS PLS
Alexxx [7]

Answer:

{105cm}^{2}

Step-by-step explanation:

Im assuming it's asking for the area of the shape.

We need to break the shape into two sections as shown in the picture. First we find the area of the rectangle (9×10)

90cm^2

Now for the triangle section (3×10)÷2

15cm^2

Now add up the two amounts.

105cm^2

5 0
3 years ago
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