2 years ago

This one to thx for help

Mathematics

2 answers:

vagabundo [1.1K]2 years ago

5 0

What is the full question ?

dolphi86 [110]2 years ago

5 0

Answer:

Step-by-step explanation:

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kramer

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2 years ago

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Three times a number minus another number is -3. The sum of the numbers is 11. Find the numbers

MatroZZZ [7]

The first equation is

$3x-y=-3$

The second equation is

$x+y=11$

If you sum the two equations you'll cancel y:

$4x=8 \iff x=2$

And since the sum must be 11, we have y=9.

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3 years ago

Kevin Sims bought a car for $12,000. A year is was worth 9,000. What was the percent decrease in value?

morpeh [17]

Answer:

Step-by-step explanation:

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3 years ago

Helpp me answer this question and explain

Ganezh [65]

The answer is A, you can tell because if you multiply 4 by the numbers inside the parentheses you’ll get =12+24..hope that helped :)

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3 years ago

At a cake sale, David bought 3 cakes and paid $10.50. At the same price, Lisa bought 4 cakes and 8 cookies and paid $14.80. What

Olin [163]

Price of a Cake

10.5/3= 3.5

1 Cake = $3 and 5 cents, 3.5

Price of a cookie

3.5*4=14

14 out of 14.80 was the cost of 4 cakes

Which leaves us with 0.8

8/0.8= 0.1

The Price of 1 cookie is 0.1

1 Cake: 3.5

1 Cookie: 0.1

7 0

3 years ago

This one to thx for help​

This one to thx for help