All categories

3 years ago

Is 3/8 a solution to this system of equations? y=5x-7,y=2x+2

Mathematics

1 answer:

blsea [12.9K]3 years ago

5 0

Yes, it's the solution.

If you substitute either x or y back into the equations and they match up it is correct.

You might be interested in

Straight forward questions I just don't know how to do them.

OLga [1]

Answer:

_____________________________

3 0

3 years ago

This season, Dominic has hit 13 home runs and Mitchell has hit 7 home runs. How many more home runs has Dominic hit than Mitchel

Ilya [14]

Answer:

Step-by-step explanation:

To answer this simply subtract 7 from 13 to find the answer.

13-7=6

Hope this helps!

If not, I am sorry.

5 0

2 years ago

David keeps records of his monthly earnings. Last month he worked 120 hours and earned $2700. This month he worked 100 hours and

lianna [129]

F(x) = 20x+300
you sub in the x values (120 hours and 100 hours) for each equation
the only one they both work for is the last one
f(x) = 20x + 300
f(100) = (20 * 100) + 300 = 2000 + 300 = 2300

f(120) = (20 * 120) + 300 = 2400 + 300 = 2700

8 0

3 years ago

Read 2 more answers

Find the x-value for point C such that AC and BC from a 2:3 ratio.

Galina-37 [17]

Given:

Point C divides AB such that AC:BC=2:3.

To find:

The x-value for point C.

Solution:

Section formula: If a point divide a line segment in m:n, then

$Point=\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)$

Form the given graph it is clear that the endpoints of the line segment AB are A(-3,5) and B(3,0).

Point C divides AB such that AC:BC=2:3. Using section formula, the coordinates of point C are

$C=\left(\dfrac{2(3)+3(-3)}{2+3},\dfrac{2(0)+3(5)}{2+3}\right)$

$C=\left(\dfrac{6-9}{5},\dfrac{0+15}{5}\right)$

$C=\left(\dfrac{-3}{5},\dfrac{15}{5}\right)$

$C=\left(-0.6,3\right)$

The x-value of C is -0.6.

Therefore, the correct option is B.

6 0

3 years ago

What is the value of x to the nearest tenth?

Mashcka [7]

ANSWER

9.7 units

EXPLANATION

According to the Pythagoras Theorem, the square of the hypotenuse is equal to the sum of the squares of the two shorter legs

${x}^{2} + {7}^{2} = {12}^{2}$

This implies that,

${x}^{2} + 49= 144$

Group similar terms,

${x}^{2} = 144 - 49$

${x}^{2} = 95$

$x = \sqrt{95}$

$x = 9.7 \: units$

to the nearest tenth.

5 0

4 years ago