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Afina-wow [57]
3 years ago
9

Please help me with this question

Mathematics
1 answer:
Vladimir [108]3 years ago
7 0

Answer: 20

Step-by-step explanation:

numbers belonging to the figure on the left are 2.5 times less than on the right so to find x multiply 8 by 2.5 and that is 20

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Which equation represents the graph? points: (0,4) (3,4)
kicyunya [14]

Answer:

D

Step-by-step explanation:

A) Incorrect. x = 4 means that all points on the line must have x coordinate equal to 4. Neither points satisfy this.

B) Incorrect. We can rewrite the equation to be y=x/4. If we calculate the slope between the two points we get a slope of 0, not 1/4.

C) Incorrect. If y = 3, all points must have y coordinate equal to 3. Neither points satisfy this.

D) Correct. If y = 4, all points must have y coordinate equal to 4. Both points satisfy this.

4 0
3 years ago
Solve the simultaneous equations
Contact [7]

Answer:

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

Step-by-step explanation:

Given equations are:

3x+4y=30\ \ \ Eqn\ 1\\3x-y=15\ \ \ \ Eqn\ 2

There are three methods to solve simultaneous equations

  1. Elimination
  2. Substitution
  3. Co-efficient method

We will use the elimination method as the coefficients of x in both equations are already same

Subtracting equation 2 from equation 1

3x+4y - (3x-y) = 30-15\\3x+4y-3x+y = 15\\5y = 15\\\frac{5y}{5} = \frac{15}{5}\\y = 3

Putting y = 3 in equation 2

3x-3 = 15\\3x = 15+3\\3x = 18\\\frac{3x}{3} = \frac{18}{3}\\x =  6

Hence,

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

7 0
3 years ago
Help me out please and thank you
xxTIMURxx [149]
First you need to find the slope of the line containing those 2 points using the slope formula.  Filling in with our info we have  m= \frac{-6-3}{4-(-2)}=- \frac{9}{6}=- \frac{3}{2}.  So the slope is -1.5.  Now we need to find out the rest of the info, mainly the y-intercept.  The line appears to go through the y axis at (0, 0), but let's make sure.  We will use the slope we just found and one of our points to solve for the y-intercept.  I picked point (4, -6).  Filling in to solve for b we get -6 = (-1.5)(4) + b.  Doing the multiplication on the right gives us -6=-6 + b.  Add 6 to both sides to get that b = 0.  Now let's use that and the slope we found to rewrite the equation in slope-intercept form.  y = -1.5x + 0 or y = -1.5x  and there you go!
6 0
3 years ago
Set up sine, cosine, and tangent for A
Margarita [4]
Sorry but the triangle don’t exit so it’s Yeager for a set up wine
8 0
3 years ago
The greenhouse club is purchasing seed for the lawn in the school courtyard. The club needs to determine how much to buy. Unfort
kiruha [24]

Answer:

The answer is 2940ft^2

Step-by-step explanation

First convert length and width to feet using the value given (7ft=1inch).

10*7= 70

6*7= 42

Multiply these values for the actual area.

42*70= 2940

The actual area of the lawn is 2940ft^2

7 0
3 years ago
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