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Ray Of Light [21]
3 years ago
7

Solve for x. Please help me.

Mathematics
2 answers:
mr_godi [17]3 years ago
6 0
X=15 this is because 45+15 is equal to 60 and is equal to 4x so 4x=60 divide both sides by 4 to get x and you get x is equal to 15
kykrilka [37]3 years ago
5 0

Answer:15 I’m pretty sure

Step-by-step explanation:

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4х + Зу = 3<br> 4x - 2y = 18<br> How to solve this?
Brilliant_brown [7]

Using elimination, you can do

4x+3y-(4x-2y)=3-(18)

5y=-15

y=-3

Substitute it back into original equation:

4x+6=18

4x=12

x=3

<h2>So, the answer is <u><em>x=3, y=-3</em></u></h2>

5 0
3 years ago
The classrooms in the Oakhurst School District are painted every summer. Seven gallons of paint are needed to paint 3 classrooms
Mazyrski [523]

Answer:

189 gallons

Step-by-step explanation:

7 gallons for 3 classrooms, so 7/3 for 1 classroom

multiply 7/3 * 129 to get 301 gallons at North High School

multiply 7/3 * 48 to get 112 gallons at Edgewater Elementary

301 - 112 = 189 gallons more at North High School than at Edgewater Elementary

5 0
3 years ago
Joel and his two friends went to the movies. They each brought a medium popcorn. All together they spent $45. How much did each
grin007 [14]

3 boys = $45

÷3 ÷3


$15, if they brought their own popcorn, then it's lose information, it's just there to throw you off


( ͡ ͜ʖ ͡ )

7 0
4 years ago
Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.)
boyakko [2]
452.16 = 3.1416 r^2
r^2 = 452.16  /  3.1416
r^2 = 143.93
r = 11.997

C = 2 (3.1416) (12) =75.38 m
3 0
4 years ago
A line passes through the points (1,2) and (–5,1).
faltersainse [42]

Answer:

y-2=1/6(x-1)

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(1-2)/(-5-1)

m=-1/-6

m=1/6

y-y1=m(x-x1)

y-2=1/6(x-1)

4 0
3 years ago
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