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tiny-mole [99]
2 years ago
8

Use substitution to solve the system. y = 3x-4 4x-5y = −13

Mathematics
1 answer:
andrezito [222]2 years ago
6 0
Y=3x-4
4x-5y=-13
4x-5(3x-4)=-13
4x-15x+20=-13
-11x+20=-13
33=11x
x=3
y=3(3)-4
y=9-4
y=5
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The digits of a two-digit number differ by 3. If the digits are interchanged, and the resulting number is added to the original
Zanzabum

Answer:

The original number could be 85.

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Let the 2 digits be x and y.

Let the number be xy then, assuming that x is the larger digit:

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6 0
3 years ago
Read 2 more answers
PLEASE SOLVE FOR ME <3
natta225 [31]

Step-by-step explanation:

At the dance, soft drinks were 4 for $2.20 this use relationship to fill in the table.

A.) fill in the table:

# of drinks: 1 2 3 4

Princes ($) | | | | |

B.) why is the constant of proportionality?

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5 0
2 years ago
PLEASE HELP I NEED ANSWER
Usimov [2.4K]
(6x-1)+20+(x+14)=180
6x-1+20+x+14=180
6x+x+20+14-1=180
7x+33=180
-33 -33
7x=147
7/7x=147/7
x=21

Measure of angle A=:
(6x-1)
6x-1
6(21)-1
126-1
125
Measure of angle A is 125°

Measure of angle C=
(x+14)
x+14
21+14
35
Measure of angle C is 35°
4 0
3 years ago
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