All categories

3 years ago

Solve by Substitution -8x-10y=12 -7x-10y=3

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

3 0

Answer:

Point Form:

(−9,6)

Equation Form:

x=−9,y=6

Step-by-step explanation:

You might be interested in

Your friend is graphing the point (4, 3). She plans to start at the origin and go up 4 spaces. Which statement about her method

goldfiish [28.3K]

The true statement about her method would be to start at the origin. But you would go up 4 spaces you would go to the right 4 spaces.

7 0

2 years ago

Read 2 more answers

How many cubic feet will it take to fill the prism below

Paul [167]

I think the answer is possibly B or D

3 0

2 years ago

Anna baked 3 batches of cookies with c cookies in each batch. She then ate 8 cookies! How many cookies does Anna have left? Writ

borishaifa [10]

Answer:

$3c-8$

Step-by-step explanation:

Let

c-------> the number of cookies in each batch

we know that

To find the total number of cookies, multiply the number of batches by the number of cookies in each batch

$3c$ ------> equation that represent the total number of cookies

If Anna ate $8$ cookies

then

The expression to know how many cookies Anna has left is equal to

$3c-8$

8 0

3 years ago

Find the value of x and the length of each side

AlladinOne [14]

The 3 sides of the triangle are PR = 8.4, OR = 5.4 and OP = 3.1

Step-by-step explanation:

Step 1 :

Given

PR = 3x - 0.6

OP = x + 0.1

OR = x + 2.4

Also the 2 sides OR and PR are said to be equal.

So we have OR = PR

=> 3x - 0.6 = x + 2.4

=> x = 2.4 + 0.6 => x = 3

Step 2 :

we have ,

PR = 3x - 0.6 = 3(3) - 0.6 = 8.4

OR = x + 2.4 = 3 + 2.4 = 5.4

OP = x + 0.1 = 3 + 0.1 = 3.1

Step 3 :

Answer :

The 3 sides of the triangle are

PR = 8.4

OR = 5.4

OP = 3.1

8 0

3 years ago

What is the length of line segment PQ? If you can please explain, thanks.

nydimaria [60]

Given:

Tangent segment MN = 6

External segment NQ = 4

Secant segment NP =x + 4

To find:

The length of line segment PQ.

Solution:

Property of tangent and secant segment:

If a secant and a tangent intersect outside a circle, then the product of the secant segment and external segment is equal to the product of the tangent segment.

$\Rightarrow NQ\times NP = MN^2$

$\Rightarrow 4\times (x+4) = 6^2$

$\Rightarrow 4x+16 = 36$

Subtract 16 from both sides.

$\Rightarrow 4x+16-16 = 36-16$

$\Rightarrow 4x =20$

Divide by 4 on both sides.

$$\Rightarrow\frac{4x}{4}=\frac{20}{4}$

$\Rightarrow x = 5$

The length of line segment PQ is 5 units.

5 0

3 years ago

Read 2 more answers

Solve by Substitution -8x-10y=12 -7x-10y=3​

Solve by Substitution -8x-10y=12 -7x-10y=3