For each ordered pair, determine whether it is a solution to the system of equations.
-3x+2y=1
4x-5y = 8
Is it a solution?
Х
5
?
Yes
No
(-6.2)
(3.5)
o
(-3. – 4)
o
(2.0)

Answer:

x = 17

Step-by-step explanation:

x + 73 = 90

x = 90 - 73

x = 17

Answer:

Option B

Step-by-step explanation:

Given the corrected equations from the comment:

Y = -1/2x - 1

Y = 1/4x - 4

(I am assuming from the answer choices  that the 1/2 is negative)

Use a graphing tool to graph the given equations.

When graphed, the lines pass the point (4, -3).

See graph below.

Option B should be the correct answer.

Hope this helps.

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Given that x and y are proportional and the equation relating them is

y = rx ← r is the constant of proportionality

To find r use any ordered pair from the table

Using x = 9, y = 4.5 , then

4.5 = 9r ( divide both sides by 9 )

[tex]\frac{4.5}{9}[/tex] = r , that is

r = [tex]\frac{1}{2}[/tex]

Answer:

A. DEF=EDF

Step-by-step explanation:

Answer:

x = 14

Step-by-step explanation:

x + 10 = 2x - 4

x + 10 - 10 = 2x - 4 - 10

x = 2x - 14

x - 2x = 2x - 2x - 14

- x = - 14

- x ÷ - 1 = - 14 ÷ - 1

x = 14

Answer:

Is to place a ' or a prime

ΔA'B'C'

Answer:

One way to name a transformed figure is to place a apostrophe after each letter in the

name of the original figure. For example, a reflection of ΔABC is named ΔA'B'C' (pronounced A prime B prime C prime).

Step-by-step explanation:

Answer:

Jim drove the truck 156 miles

Step-by-step explanation:

Represent the number of miles driven with x.

Then the formula for the total rental cost is C(x) = $17.95 + ($0.87/mile)x, and this comes to $153.67.  Solve for x:

$153.67 - $17.95 = ($0.87/mile)x, or

$135.72 = ($0.87/mile)x

Dividing both sides by ($0.87/mile), we get:

x = 156

Jim drove the truck 156 miles

Nellie has 62 pieces of candy,

62x3=186

186+62=248

Answer:

30 is correct answer. ... ...........

Answer:

7.25/25

Step-by-step explanation:

may I pls have brainliest

Answer:

29/100

Step-by-step explanation:

0.29=29/100

Answer:

I think you need to find the area of bottom part hope this helps im confused two but try that

Answer:

ok queen

Step-by-step explanation:

Step-by-step explanation:

3x + y = 11 ...(1)

2x - y = 4 ...(2)

From equation (1) we get,

3x + y = 11

x = 11 - y/3

Now, put the value of x = 11 - y/3 in equation (2) we get,

2x - y = 4

2(11 - y/3) - y = 4

22 - 2y/3 - y = 4

22 - 2y - 3y = 12

22 - 5y = 12

5y = 22- 12

5y = 10

y = 10/5

y = 2

Now, Put the value of y = 2 in equation (1)

3x + y = 11

3x + 2 = 11

3x = 11 - 2

3x = 9

x = 9/3

x = 3

Thus, The value of x is 3 and y is 2

3x + y = 11

3(3) + 2 = 11

9 + 2 = 11

11 = 11

2x - y = 4

2(3) - 2 = 4

6 - 2 = 4

4 = 4

Hence, L.H.S = R.H.S

-TheUnknownScientist

Answer:

The dime section does not belong. If you add it together it equals 50, while the others all equal/ add up to 25.

Answer:

12 years

Step-by-step explanation:

Represent the mother's age by m and the son's by 4.  Currently m = 36 years old.

In x years the mother will be three times as old as her son:

mother:  36 + x years old

son:  4 + x years old

The pertinent equation to solve is:

36 + x = 3(4 + x)

Performing the multiplication, we get:

36 + x = 12 + 3x, or

24 = 2x.  Then x = 12.

Check:  In 12 years, will the mother's age be 3 times the son's age?

Does 36 + 12 = 3(4 + 12)?

Does    48      = 48?  YES

The mother will be 3 times as old as her son in 12 years from now.

Answer:

The displac ment between t = 1 and t = 4 is 272 feet

Step-by-step explanation:

To get the displacement of the ball, we first need to get the equation for the position of the ball with respect to time.

We can do this by differentiating the velocity equation given:

v(t) = -32t +96

integrating between the limits of t = 1 and t = 4, we have

[tex]s = \int\limits^4_1 {-32t +96} \, dt[/tex]

[tex]s(t) = -32t^2/2 +96t[/tex]

[tex]s =[ -16t^2 +96t] t = 4, t =1[/tex]

where t = 4.

s = 256 + (96) =352 feet

Where t = 1

s = 80

Displacement of the ball = 352 -80 = 272ft

The displac ment between t = 1 and t = 4 is 272 feet

Answer:

9x - 5 = 6

9x = 6 + 5

9x = 11 (divide both sides by 9 to get x)

9x/9 = 11/9

x = 1.22222222222

Answer:

1- effect of cause

2- effect of cause

4- effect of cause

Answer:

i think 4 feet tall

Step-by-step explanation:

i think if it is wrong im sorry i tried

Answer:

37.7ft³

Step-by-step explanation:

Answer:

(3+ 5)2=8*2=16

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

(3+1*5)2

B- brackets

I- indices

D- division

M- multiplication

A- addition

S- subtraction

1*5=5

5+3=8

8*2=16

Answer:

v = 5/x

Step-by-step explanation:

Hope this helped

Answer: v=5

→Hope this helps!←

Answer:

4/10 or 2/5

Step-by-step explanation:

9/10-1/2 = 9/10-5/10 = 4/10 = 2/5

Answer:

2/5

Step-by-step explanation:

9/10-1/2

9/10-1×5/2×5

9/10-5/10

9-5/10

4/10

2/5

Answer:

RQ = RS = 3

Step-by-step explanation:

Since RQ and RS are radii of the circle then they are congruent

let RQ and RS be x , then

Using Pythagoras' identity in right triangle QRS

x² + x² = (3[tex]\sqrt{2}[/tex] )²

2x² = 18 ( divide both sides by 2 )

x² = 9 ( take the square root of both sides )

x = [tex]\sqrt{9}[/tex] = 3

Thus RQ = RS = 3

Answer:

I think 96° but not fully sure sorry if wrong

Answer: 345.977 m^3

Step-by-step explanation:

Answer:m

Step-by-step explanation:

n

Answer:

missing angle 32 ...........

Answer:

it's Answer is option B

Step-by-step explanation:

The new volume is 4 times the old volume

Answer:

120.7 cm²

Step-by-step explanation:

2( 1 + √2 ) a² = 2( 1+ √2 ) · 5² ≈ 120.7