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Roman55 [17]
3 years ago
7

Solve the system using substitution {x-2y=0 {4x-3y=15

Mathematics
2 answers:
liberstina [14]3 years ago
7 0
X - 2y = 0
x = 2y


4x - 3y = 15
4(2y) - 3y = 15
8y - 3y = 15
5y = 15
y = 3
x = 2y = 6
Ostrovityanka [42]3 years ago
6 0
X=2 for the top & for the bottom 3/4y+15/4 
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Understanding tens and ones
Semenov [28]
The number 15 has 2 place values.
 
The value in the tens place is 1. 
The value in the ones place is 5.

1 tens + 5 ones = 15

If you need help comment below and ill try my best to help you out!
4 0
3 years ago
Read 2 more answers
Boris had 91.5 g of pepper then he use 0.4 g of the pepper to make each plate of scrambled eggs how much pepper does Boris have
kirza4 [7]

Answer:

85.1 g

Step-by-step explanation:

Boris has 91.5 g of pepper

He used 0.4g to make one plate of scrambled egg

If she made 16 plates of scrambled egg then the amount of pepper that will be left can be calculated as follows

= 0.4×16

= 6.4g

= 91.5g - 6.4g

= 85.1g

Hence Boris will have 85.1g of pepper left

5 0
3 years ago
Help please Simplify: 4y + (2y – 4) A. -6y + 4 B. 6y – 4 C. -6y – 4 D. 6y + 4
alina1380 [7]

b is the answer hope this help

7 0
3 years ago
What is expression is equivalent to 2/4
tatuchka [14]
1/2 or 4/8 is the answer
4 0
3 years ago
CCSS Math 7
Andre45 [30]

Answer:

1.

a = 112

b = 68

c = 68

2.

a = 127

3.

a=35

b=40

c=35

d=70

4.

a= 30

b=70

c = 30

d=70

e = 130

I'll help you with the rest later

Step-by-step explanation:

a = 112 because of allied angles rule

b and c = 68 because of angles at a point

360-112-112 ÷2

2. a = 127 because of angles on a straight line rule.

180-38-15

3. d= 70, vertically opposite angle

using angles on a straight line, 180 - 70 - 40 ÷ 2

we now have the two angles and because they are vertically opposite a and c = 35

b = 40 because of vertically opposite angles

4. a=30 because 90-70

since a=30, take 90 - 30 to get b, 70

d= 70, vertically opposite angles

e = 130 because a+b+c, vertically opposite angles

7 0
2 years ago
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