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lakkis [162]
2 years ago
8

Solve systems using substitution PLEASE

Mathematics
1 answer:
skad [1K]2 years ago
4 0
X=5. y=35.

To solve, substitute the 7x into the equation for y. Solve. You get x=5. Then put that into your first equation. Solve. You get y=35. Hope that helps!!
You might be interested in
Which function has a range of y&lt;3?<br> y=3(2)<br> y=2(3)*<br> y=-(2)* + 3<br> y= (2)X-3
Bingel [31]

The function that has a range of y<3 is y=-(2)* + 3

Answer: Option(c)

<u>Step-by-step explanation:</u>

Solution:

Lets shall evaluate the options given in the question

In Option 1; y=3(2) that is

y=3 \times 2=6

So the value of y>3 and thus option 1 fails

In option 2; y=2(3)*

This expression indicates that the power of 3 all result in positive values and sometimes zero such that for 2 \times 3^{0}=0 and for values other than one y will be greater than 3. so option 2 fails.

In option 4; y=2x(-3)

On solving we get y=2 \times(-3)=-6

Though it is less than 3 but it has an negative value. So option 4 fails.

In option 3; y=-(2)* + 3

This option indicates for all power values of -2 the y value will be less than 3 such that

For power value 0 we get

y=-2^{0}+3

y=0+3=3

And for the power value 1 we get

y=-2^{1}+3

y=-2+3=1

So in the both the occasion the value of y<3 than and it is not an negative value and thus option 3 satisfy the functional range y<3.

Result:

Thus the function that has a range of y<3 is y=-(2)* + 3

3 0
3 years ago
Find x in each triangle. PLZ ANSWER FAST!!!!!!!!!!!
Gemiola [76]
A) a^2 + b^2 = c^2
c^2 - a^2 = b^2
13^2 - 5^2 = b^2
b = 12dm

b) a^2 + b^2 = c^2
10^2 + 24^2 = c^2
c = 26 in

c) a^2 + b^2 = c^2
c^2 - a^2 = b^2
17^2 - 8^2 = b^2
b = 15 ft
4 0
2 years ago
When painting my bedroom I used 3 1/2 liters of blue paint and 2 1/4 liters of red paint. How much paint did I use in all
Lubov Fominskaja [6]
Hi there!

To solve this problem, we need to find the total amount of paint used by adding the two fractions.

First, we need to find the common denominators below adding.

1/2 = 2/4
1/4 = 1/4

The common denominator is 4.

Now, we add the mixed numbers together:

3 2/4 + 2 1/4 = 5 3/4

Since 5 3/4 can't be simplified, the answer is:

5 3/4 liters of paint

Hope this helps!

4 0
3 years ago
Read 2 more answers
Which of the following statements is false?
Nutka1998 [239]
A.) All parallelograms are trapezoids
4 0
3 years ago
What is the value of 5 in 43.245
zaharov [31]

Answer:

.005

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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