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kipiarov [429]
3 years ago
15

Plz help me ... please

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
6 0

Answer:

x = -1, and y = -2, giving you the answer (-1, -2)

Step-by-step explanation:

In the second equation, we're told that y is equal to 2x.  With that, we can replace "y" in the first one with "2x", giving us:

-4x - 2x = 6

-6x = 6

x = -1

Now that we know the value of x, we can simply plug it into the first equation to find y:

-4x - y = 6

-4(-1) - y = 6

4 - y = 6

-4 + y = -6

y = -6 + 4

y = -2

So x = -1, and y = -2

White raven [17]3 years ago
5 0
X=-1 Y=-2 I believe is the answer most likely yes
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Veronika [31]
Distribute the .15 on the right side to get:
20 + .5x + 3 + .075x

Then, combine like terms (add numbers together and add x terms together):
.575x + 23

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6 0
3 years ago
Which of the following options have the same value as 80% of 22?
Alex_Xolod [135]
80% of 22 can be written in the following ways:

1) 80% of 22 = 17.6

2)
0.8 x 22 = 17.6
The percentage is converted into decimal form.

3) 80/100 x 22 = 17.6
The percentage is converted into fraction form.

80/100 can be simplified to 4/5, and the point 3 can also be written as:

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3 0
3 years ago
4. Sherman hopes to get at least a 90 average on his science tests. He has one more test
Alinara [238K]

Answer:

79+94+91+92+test5)/5=90

The lowest score have to be 94

Step-by-step explanation:

Our goal is gona be to have an average of 90, it can be higher but we are going to use this.

For average the equation is

(test1+test2+test3+test4+test5)/5=average

We know the result for the first 4 tests

Test 1=79

Test 2=94

Test 3=91

Test 4=92

But we dont know test 5

(79+94+91+92+test5)/5=average

Our goal for the average is 90

(79+94+91+92+test5)/5=90

79+94+91+92+test5=90*5

test5=450-79-94-91-92

Test5=94

8 0
3 years ago
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butalik [34]
I have no idea I’m sorry I need the points for my homework 18
7 0
2 years ago
Read 2 more answers
Please help me <br>is for my daughter ​
lana66690 [7]

Step-by-step explanation:

To find 5/6 of the area, multiply the area that was found in part A , as the question states by 5/6.

⅚ × Area found in part A.

6 0
2 years ago
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