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3 years ago

Select all that justify the following statement. 2 • = 1

Mathematics

1 answer:

Dvinal [7]3 years ago

6 0

Try using negative numbers

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A building contractor cut a 3 1 4 foot piece off a 12 foot piece of wood. The remaining piece of wood was then cut into 7 equal

Alexus [3.1K]

(12-3.25)/7=1.25ft ( or 1' 3" )

5 0

3 years ago

Joanie runs the concession stand for the school's baseball games. At each game, the best selling items are pretzels and hot dogs

timama [110]

3p+2h=195

p + 15 = h

3p + 2(p + 15) = 195

3p + 2p + 30 = 195

5p = 165 (combine like terms and isolate your variable)

p = 33

33 + 15 = 48 (plug 33 into your original second equation)

ANSWER: 33 pretzels and 48 hotdogs
**You can plug these into your original (first) equation to check your answer

6 0

3 years ago

Read 2 more answers

What values of x and y satisfy the system of equations {10x+3y=−5−5x−4y=10? (0,−53) (25,−3) (−2,0) (12,−103)

Kitty [74]

Answer:

The solution of the equation

( 0.4 ,-3)

Step-by-step explanation:

Explanation:-

Step(i):-

Given system of equations

10 x+3 y = −5 ...(i)

- 5 x - 4 y = 10 ...(ii)

Multiply (i) with '5'

10 × 5 x + 3×5 y = - 25

50 x + 15 y = 25 ...(iii)

Multiply (ii) with '10'

-5 × 10 x - 4×1 0 y = 100

- 50 x - 40 y =100 ...(iv)

Step(ii):-

Solving (iii) and (iv)

50 x + 15 y =- 25

- 50 x - 40 y =100

- 25 y = 75

Dividing ' - 25' on both sides, we get

y = -3

substitute y = -3 in equation (i) , we get

10 x+3 y = −5

10 x - 9 = - 5

10 x = -5 + 9

$x = \frac{4}{10}$

x = 0.4

Final answer:-

The solution of the equation ( 0.4 ,-3)

7 0

3 years ago

I need to perform the operation

d1i1m1o1n [39]

(-5 $x^{2}$ -4x-1)+(-4 $x^{2}$ -4x)

=-5 $x^{2}$ -4x-1-4 $x^{2}$ -4x

=-9 $x^{2}$ -8x-1

6 0

2 years ago

Read 2 more answers

Y = 7x - 10 & y = -3

fiasKO [112]

Answer:

x=7-13

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers