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noname [10]
3 years ago
13

Solve for x&y, y=3x-4 & y= 2x + 1

Mathematics
2 answers:
Viktor [21]3 years ago
6 0

Answer:

(5, 11 )

Step-by-step explanation:

Given the 2 equations

y = 3x - 4 → (1)

y = 2x + 1 → (2)

Substitute y = 3x - 4 into (2)

3x - 4 = 2x + 1 ( subtract 2x from both sides )

x - 4 = 1 ( add 4 to both sides )

x = 5

Substitute x = 5 into either of the 2 equationsfor corresponding value of y

Substituting into (2)

y = 2(5) + 1 = 10 + 1 = 11

solution is (5, 11 )

marshall27 [118]3 years ago
6 0

Answer:

This is a system. put the first equation under the second one and subtract. y - y = 0. 2x - 3x = -x. 1 - (-4) = 5. so the result is 0 = -x +5 or x = 5. plug x into either equation and y = 11. the answer is (5, 11).

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Type the correct answer in each box,
Klio2033 [76]

Answer:

50 miles would make the two choices equivalent (65$)

Step-by-step explanation:

Express moving: y=4/5x+25

Smith and Smith Co: y=3/5x+35

4/5x+25=3/5x+35

Subtract 25 from both sides:

4/5x=3/5x+10

Subtract 3/5x from both sides

1/5x=10

x=50

50 miles would make the two choices equivalent (65$)

If helped.. Mark me BRAINLIEST

Tysm

8 0
3 years ago
the area of the square is same as the area of Rhombus whose diagonals measure 10 centimetre and 20 cm find the perimeter of the
Vinil7 [7]

Answer:

perimeter of square = 35.78 cm

Step-by-step explanation:

cut the rhombus into 4 triangles along the diagonals

each triangle has a base of 5 and a height of 10 cm

area of one triangle = 1/2(4)(10) = 20 cm^2

4 triangles = area of rhombus = 80 cm^2

then the square has an area of 80 cm^2 also

side^2 = 80 cm^2

side of square  = 8.94 cm

perimeter = 8.98 x 4 = 35.78 cm

8 0
3 years ago
Read 2 more answers
Round off to the nearest hour 10 :54​
Pachacha [2.7K]

Answer:

11

Step-by-step explanation:

the closest whole number on the hour is 11

5 0
3 years ago
Standard form of the equation that goes through (1, 2) with a slope of 7, please!
Radda [10]

Answer:

7x - y = 5

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Obtain the equation in point- slope form and rearrange into standard form.

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 7 and (a, b) = (1, 2)

y - 2 = 7(x - 1) ← in point- slope form

y - 2 = 7x - 7 ( subtract y from both sides )

- 2 = 7x - y - 7 ( add 7 to both sides )

5 = 7x - y , that is

7x - y = 5 ← in standard form

7 0
3 years ago
If the total unit cost of manufacturing Product Y is currently $36 and the total unit cost after modifying the style is estimate
luda_lava [24]

The question is incomplete. The question is asking whether the given statement is TRUE or FALSE.

Answer:

The given statement is FALSE.

Step-by-step explanation:

Given:

Total unit cost of manufacturing product Y is, C_{man}=\$36

Total unit cost after modifying the style is, C_{mod}=\$48

So, the differential cost for this situation is given as the difference of the modifying cost and manufacturing cost.

Therefore, the differential cost is given as:

\textrm{Differential cost}=C_{mod}-C_{man}\\\textrm{Differential cost}=\$48-\$36=\$12

Hence, the given statement is false and the correct value for differential cost for this situation is $12.

7 0
3 years ago
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