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vitfil [10]
3 years ago
15

Solve the system by substitution

Mathematics
1 answer:
olganol [36]3 years ago
6 0

Answer:

-2

Step-by-step explanation:

y =  - 6x \\ y =  - 4x + 4 \\ then \: substitute \\  - 6x =  - 4x + 4 \\  - 6x + 4x = 4 \\  - 2x = 4 \\  \frac{ - 2x}{ - 2}  =  \frac{4}{ - 2}  \\ then \:  - 2 \: cancel \: by \:  - 2 \\ x = - 2

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Y+4/12-y-1/12=y/2<br><br> Pls! on a time limit
icang [17]

Answer:

y= 1/2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
kim want to sell at least 500 worth of dessert each day at her Bakery she sells cakes for 8 each cupcake for 2 each if she solve
PtichkaEL [24]
20× 8 = 160

160 + 2x > or = 500
-160--------------- -160

2x > or = 340
÷2------------÷2

x > or = 170

She has to sell at least 170 cupcakes to make $500 in profit.

Hope this helps!
5 0
3 years ago
Ranger simplified this expression. 3(2.7x + 5) – 2(4x – 1.6) What was Ranger's simplified expression? 0.1x + 18.2 –16.1x + 11.8
Ymorist [56]

Answer:

Ranger's simplified expression was 0.1x + 18.2

The correct answer is the first option.

Step-by-step explanation:

To simplify the given expression

3(2.7x + 5) – 2(4x – 1.6)

First, we will open the brackets by distributing 3 and 2, that is

(3×2.7x) + (3×5) -(2×4x) -(2×-1.6)

Now, we will get

8.1x + 15 - 8x +3.2

Now, collect like terms,

8.1x - 8x + 15 + 3.2

Then, we will get

0.1x + 18.2.

Hence, Ranger's simplified expression was 0.1x + 18.2.

The correct answer is the first option.

5 0
3 years ago
Read 2 more answers
Which ordered pair in the form (x,y) is a solution of this equation?
qwelly [4]
D
7•4 =28, -5•0 =0... 28+0=28
7 0
3 years ago
is a stem and leaf plot or a bar graph appropriate to display the number of students at three schools? explain your choice
Dominik [7]
Bar graph because a stem and leaf plot is used when there are big numbers and also when there is a lot of numbers. It CANNOT be used for comparing different data.

Bar graphs are used to compare data. To be more specific, you should use a double bar graph because:

Double bar graphs have 2 or more bars for compariong
Bar graphs are usually used to show length

Answer: Double bar graph (bar graph)

Hope this helps :)
4 0
4 years ago
Read 2 more answers
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