3 years ago

How to solve this equation i don’t understand

Mathematics

1 answer:

Tanzania [10]3 years ago

5 0

Answer:

a= $8 c=$3

Step-by-step explanation:

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If DE = 7x + 3 and EF = 9x - 19,<br> then EF = ?

ANEK [815]

Answer:

Step-by-step explanation:

7x + 3 = 9x - 19

-2x + 3 = -19

-2x = -22

x = 11

DE= 7(11) + 3 = 77 + 3 = 80

EF = 9(11) - 19 = 99 - 19 = 80

80 + 80 = 160 for DF

6 0

3 years ago

9. What is the equation of a line perpendicular to 3x – 4y = 24 ?

Alika [10]

Perpendicular lines have slopes that are negative reciprocals of each other, that is, if one slope is a/b, the other slope is -b/a
the given line 3x-4y=24, 4y=3x-24, y=3/4x-6 has a slope of 3/4, so the slope of the perpendicular line has a slope of -4/3
y=(-4/3)x+b, b can be any number.

6 0

4 years ago

What is 6x(-496)=19x12

vichka [17]

Answer:

-19/248

Step-by-step explanation:

4 0

3 years ago

The sum of two segments are 75 cm, and one the segments are four times the other. Calculate the measurement of each segment

iVinArrow [24]

The length of one segment is 15 cm and other segment is 60 cm

Step-by-step explanation:

Let x be the length of one segment and y be the length of other segment

Then according to given statement

x+y=75 Eqn 1

And

one the segments are four times the other

x=4y Eqn 2

$Putting\ x=4y\ in\ equation\ 1$

$4y+y=75\\5y=75\\Dividing\ both\ sides\ by\ 5\\\frac{5y}{5}=\frac{75}{5}\\y=15\\Putting\ y=15\ in\ eqn\ 2\\x=4(15)\\x=60$

Hence,

The length of one segment is 15 cm and other segment is 60 cm

Keywords: Linear Equation, Variables

Learn more about linear equations at:

#LearnwithBrainly

8 0

3 years ago

Ryan and Kaine are two partners in a business. Ryan makes $3 in profits for every $4 Kaine makes. If Kaine makes $60 profit on t

Kruka [31]

Answer is $45

Step-by-step explanation: because 60/4 = 15 and 15 x 3 = 45, Ryan makes $45
Hope this helped

6 0

3 years ago