3 years ago

-7x-y=13 and 8x+y=-14 solve by substitution

Mathematics

1 answer:

nasty-shy [4]3 years ago

8 0

Answer:

Step-by-step explanation:

Add the 2 equations

-7x+8x = 13-14

x=-1

7-y=13

-y = 6

y=-6

You might be interested in

!!please help me quick!! find the equation of the line. y=__x+__

alexdok [17]

Y= 3x + 3. Use rise (how many it goes up or down) and divide it by run (how many it goes left or right) that number is your slope (aka M/ the number that goes with x. The number without the x attached is just where the line crosses the y axis

3 0

3 years ago

Read 2 more answers

Yolanda paid for her movie ticket using 28 coins, all nickels and quarters. The ticket cost $4. Which system of linear equations

Anvisha [2.4K]

Answer:

n + q = 28 0.05n + 0.25q = 4

3 0

3 years ago

Read 2 more answers

What is 9 ten thousands ÷10

borishaifa [10]

9 ten-thousands is 9*10,000=90,000. 90,000/10 is 9,000, or nine thousands.

6 0

4 years ago

Read 2 more answers

Use the expression to complete the statements. (0.5)10 (0.5)10 is the . (0.5) is the of (0.5)10. 10 is the of (0.5)10. A power i

RideAnS [48]

Question:

Use the expression to complete the statements.

$(0.5)^{10\\$

________ is the power .

(0.5) is the ________

A ______ is another way to write

Answer:

0.5 is the base

10 is the power

$(0.5)^{10\\ = (\frac{1}{2})^{10}$ -- another way to write

Step-by-step explanation:

Given

$(0.5)^{10\\$

Required

Fill ion the gaps

$(0.5)^{10\\$ is pronounced as; 0.5 raise to the power of 10

From the above statement, we can deduce the following:

0.5 is the base

10 is the power

Lastly, another way to write $(0.5)^{10\\$

Express 0.5 as a fraction

$(\frac{5}{10})^{10}$

Simplify the fraction

$(\frac{5/5}{10/5})^{10}$

$(\frac{1}{2})^{10}$

Hence:

$(0.5)^{10\\ = (\frac{1}{2})^{10}$

3 0

3 years ago

Read 2 more answers

-3 divided by 1/6 = 1. 18 2. -18 3. -2 4. -1/2

dedylja [7]

Answer:

-18

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers