1.75x+1.25y=2
7x+5y=9
how many solutions does this system of equations have?

Answer:

The answer is (2,-2)

Answer: A

Step-by-step explanation:

Answer:

It is A

Step-by-step explanation:

Answer:

x = sqrt(37)/2 - 3/2

approximately 1.54

Step-by-step explanation:

Solve for x over the real numbers:

4 x^2 + 12 x = 28

Divide both sides by 4:

x^2 + 3 x = 7

Add 9/4 to both sides:

x^2 + 3 x + 9/4 = 37/4

Write the left hand side as a square:

(x + 3/2)^2 = 37/4

Take the square root of both sides:

x + 3/2 = sqrt(37)/2 or x + 3/2 = -sqrt(37)/2

Subtract 3/2 from both sides:

x = sqrt(37)/2 - 3/2 or x + 3/2 = -sqrt(37)/2

Subtract 3/2 from both sides:

Answer: |

| x = sqrt(37)/2 - 3/2 or x = -3/2 - sqrt(37)/2

Answer:

23

Step-by-step explanation:

total number of people at the restaurant = number of groups x total number of people in the groups

4 x 5 = 20

20 people ordered hot chocolate

3 people ordered an extra cup of hot chocolate.

The total number of hot chocolate ordered = 20 + 3 = 23

Step-by-step explanation:

Question 2:

y + 3 = 10

Solution:

Given,y + 3 = 10

By subtracting 3 from both sides, we get

y + 3 – 3 = 10 – 3

⇒ y = 10 – 3

⇒ y = 7

Question 3:

6 = z + 2

Solution:

Given,6 = z + 2

By substractin

only an example

Answer:

Step-by-step explanation:

[tex]\frac{1}{3}(x + 3 ) - 2(x - 5) = 4\frac{1}{3}\\\\\frac{1}{3}x + \frac{1}{3}*3 + x*(-2) - 5*(-2) = \frac{13}{3}\\\\\frac{1}{3}x + 1 - 2x + 10 =\frac{13}{3}\\\\\frac{1}{3}x -2x + 1 + 10 =\frac{13}{3}\\\\\frac{1}{3}x - \frac{2*3}{1*3}x + 11 = \frac{13}{3}\\\\\frac{1}{3}x-\frac{6}{3}x =\frac{13}{3}-11\\\\\frac{1-6}{3}x=\frac{13}{3}-\frac{11*3}{1*3}\\\\\frac{-5}{3}x=\frac{13-33}{3}\\\\\frac{-5}{3}x=\frac{-20}{3}\\\\x=\frac{-20}{3}*\frac{3}{-5}\\\\x=4[/tex]

1:2=3:x

1/2=3/x

1×x=3×2

x=6

Answer:

2×3.14×4.4

27.62 is the answer

Answer:

8.45

Step-by-step explanation:

Doubling a number is the same as multiplying by 2, so to go back to the original number you divide 16.9 by 2

Answer:

(-3, 2)

Step-by-step explanation:

Since you are reflecting over the y-axis (the vertical axis), you are flipping the figure over to the left. As a result, you are going over to -3 and up to 2

Answer:

A' is at (-3, 2)

Step-by-step explanation:

point stays 3 units away from the x-axis and 2 units above the y-axis

Answer:

Sale price:  $722.50

Step-by-step explanation:

Subtract 15% from 100%, obtaining 85%.  The computer is sold for 85% off.

Converting this 85% to a mixed decimal, we get 0.85, and then we multiply the original price ($850) by this 0.85:  0.85($850) = $722.50

Answer:

1/6

Step-by-step explanation:

the answer is 1/10 or .1

Answer:

C

Step-by-step explanation:

Find the 3rd angle of the bigger triangle:

180 - 49 - 55 = 76 degrees

*The inside angles of the small and large triangles are the same.

Find the unknown angle of the small triangle:

180 - 35 - 76* = 69 degrees

Like and mark brainliest if this helped

Like and mark brainliest if this helped

Answer:

im not sure if this is right lol but i got 31.18

Step-by-step explanation:

i used cross mutliplication, 35 over x is equal to 55 over 49. then i mutliplied 55 and x which is 55x. then i multiplied 35 and 49, which is 1715. i did 1715 divided by 55 to get rid of x and i got 31.18. hope this helps lol

Answer:

75%

Step-by-step explanation:

Take 9/12 and multiply it by 100 and you get the percentage of the turtles that are green.

Answer:

cos 29 = x / 11

11 * cos 29 = x

x =  11 * 0.87462

x = 9.62082

Step-by-step explanation:

The missing step in the given proof is ∠DEB ≅ ∠ACE

From the two triangles named ΔABC and ΔDBE, we can see that in both triangles, the angles ∠ABC and ∠DBE are equal.

Now, we are told that if two parallel lines are cut by a transversal that the corresponding angles formed are congruent. Thus, we can say that ∠DEB and ∠ACE are equal.

Thus, the missing step in the given proof is ∠DEB ≅ ∠ACE.

Read more about Similar Triangles at; https://brainly.com/question/8691470

#SPJ1

Answer:

9674.28 miles

Step-by-step explanation:

From the above question, we are given:

Central angle = 140°

Radius = 3960 miles

We are to solve for the distance = Arc length

The formula for Arc length when your central angle is in radians

r × θ

θ = 140°

Converting 140° to radians

140° × π/180 = 2.443rad

Hence,

3960 × 2.443 rad

= 9674.28 miles

The ship would travel 9674.28 miles.

Answer:

hb

Step-by-step explanation:

Answer:

Step-by-step explanation:

Angle G is ACUTE (answer d) because it's between 0 and 90 degrees.

Answer:

8 blocks

Step-by-step explanation:

As the north direction is upwards and the south direction is downwards the total distance between the two people 's (Megan and Jake)  houses will be obtained by adding their distances from the library which is in the middle as shown in the diagram.

Hence total distance between the two houses= 3.5 + 4.5= 8 blocks

Jake and Meagan live 8 blocks apart.

Answer:

slope 2

yint 1

equation y=2x+1

A = area of triangle + area of rectangular + half of the circle area

_________________________________

triangle area = 1/2 × base × height

triangle area = 1/2 × 3 × 5 = 15/2 = 7.50

☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆

rectangular area = length × width

rectangular area = 6 × 5 = 30

☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆

circle half area = 1/2 × pi × radius^2

circle half area = 1/2 × 3.14 × 3^2

circle half area = 1.57 × 9

circle half area = 14.13

_________________________________

A = 7.50 + 30 + 14.13

A = 51.63 m^2

Answer: the answer is A

Step-by-step explanation:

Answer:

u=-2

Step-by-step explanation:

Let's solve your equation step-by-step.

11u=−22

Step 1: Divide both sides by 11.

11u

11

=

−22

11

u=−2

Answer:

u=−2

Answer:

intégration d'Matthieu à la soirée d'Maya

Step-by-step explanation:

t'inquiète, je gère, j'lui parle sur Insta' , vous êtes drôle avec votre iguane en plastique. c'est gentil, merci. j'ai un peu envie d'te revoir, c'est étrange, moi aussi tu viens chez Emeric ce soir, j'y serai, c'est promis!

Answer:

x = 11.1

Step-by-step explanation:

3.75x - 1.5 = 40

3.75x = 40 + 1.5

3.75x = 41.5

x = 41.5/3.75

x = 11.07

Rounded to nearest tenth: 11.1

Answer:

11.1

Step-by-step explanation:

3.75x - 1.5 = 40

+1.5 +1.5

3.75x/3.75 = 41.5/3.75

1x=11.1

x= 11.1

Answer:

8.704%

Step-by-step explanation:

The computation of the before cost of debt is as follows

Given that

Future value = $100

Present value = $103

NPER = 25 × 2 = 50

PMT = $100 × 9% ÷ 2 = $4.5

The formula is presented below:

= -RATE(NPER;PMT;PV;FV;TYPE)

After applying the above formula, the rate is 4.3518%

Yearly rate is

= 4.3518% ×2

= 8.704%

Answer:

Step-by-step explanation:

Is there supposed to be a picture

Answer: X= 11

Step-by-step explanation: 13x-26 and 5x+8 are Linear Pairs which are supplementary. 13x-26+5x+8 is equal to 18x-18=180. 18x=198 and then X=11