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____ [38]
3 years ago
5

For each ordered pair, determine whether it is a solution to 4x+5y=-13

Mathematics
2 answers:
Xelga [282]3 years ago
7 0

Answer:

Step-by-step explanation:

yhuhjooguh

iren2701 [21]3 years ago
6 0

(8,-9) = 4\cdot \:8+5\left(-9\right)=-13\quad :\quad \mathrm{True}

(-2,-1) = 4\left(-2\right)+5\left(-1\right)=-13\quad :\quad \mathrm{True}

(6,3) = 4\cdot \:6+5\cdot \:3=-13\quad :\quad \mathrm{False}

(-7,4) = 4\left(-7\right)+5\cdot \:4=-13\quad :\quad \mathrm{False}

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max2010maxim [7]

Answer:

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Step-by-step explanation:

-7Q + 6 + 5Q = 15 - 7

Q=-1

3 (P+5) + P = 3(2+P)

P=-3

2(A+4) + 6A = 2(2 + 3A)

A=-2

6 0
4 years ago
Shanice paid $3.82 for a sandwich. She now has $7.44. How much money did she have before buying he sandwich?
astraxan [27]

Just add 7.44 and 3.82

7.44 + 3.82 = 11.26

So, she had $11.26 before buying a sandwich

8 0
3 years ago
Please help I’ll make you the brainiest
Kitty [74]

Answer:

Length of smaller side = 15 inches

Length of bigger side = 36 inches

Length of hypotenuse = 39 inches

Step-by-step explanation:

Given:

Length of smaller side = a

Length of bigger side = (a + 21) inches

Length of hypotenuse = (a + 24) inches

Find:

Length of all side

Computation:

Using Pythagorean theorem

Hypotenuse² = Base² + Perpendicular²

(a+24)² = a² + (a+21)²

a² + 576 + 48a = a² + a² + 441 + 42a

a² - 6a - 135 = 0

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So

a = 15 inches a = -7 inches

So,

Length of smaller side = a = 15 inches

Length of bigger side = (a + 21) inches = 15 + 21 = 36 inches

Length of hypotenuse = (a + 24) inches = 15 + 24 = 39 inches

6 0
3 years ago
Which of the following equations could be the result of using the comparison method to solve the system shown? x - 4y - 1 = 0 x
andrew11 [14]

Answer:

Option A.

Step-by-step explanation:

The given system of equations is

x-4y-1=0

x+5y-4=0

The given equations can be rewritten as

x=4y+1

x=4-5y

Using comparison method, compare the values of x.

4y+1=4-5y

Therefore, the correct option is A.

5 0
4 years ago
Read 2 more answers
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iren2701 [21]
X+y+z=70
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z=2y-10
6 0
3 years ago
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