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Sonbull [250]
3 years ago
14

What times what equals 20 and adds to -9

Mathematics
2 answers:
umka21 [38]3 years ago
5 0

I think the numbers are -5 and -4.

Softa [21]3 years ago
5 0

Answer:

-5, -4

Step-by-step explanation:

So if you know negative integers, you can do -5 * -4 which would equal positive 20.

And -5 + -4 would equal -9.

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Solve the system of equations : y = x/2 , y = -x - 3 . You can use any method you wish for solving systems of equations. Check y
lorasvet [3.4K]

Answer:

x=−2 and y=−1

Step-by-step explanation:

<u>Problem:</u>

Solve y=x2;y=−x−3

<u>Steps:</u>

I will solve your system by substitution.

y=1/2x;y=−x−3

Step: Solve y= 1/2x for y:

Step: Substitute 1/2 x for y in y=−x−3:

y=−x−3

1/2x= =−x−3

1/2x+x=−x−3+x(Add x to both sides)

3/2x = -3

3/2x/3/2 = -3/3/2 (Divide both sides by 3/2)

x=−2

Step: Substitute −2 for x in y=1/2x:

y=1/2x

y=1/2(-2)

y=−1(Simplify both sides of the equation)

<u>Answer:</u>

x=−2 and y=−1

5 0
1 year ago
There is 46% hard working Elfs in the North Pole. there is 300 elfs in north pole. How many elfs are hard working
sveticcg [70]

Answer:

138 hard working elfs

Step-by-step explanation:

the 46% of 300 is 138

3 0
2 years ago
Read 2 more answers
Sally bought a car for 35000 in 2017. If the car loses 5.5% semiannually, what will the value of the value of the car be at the
kumpel [21]
The value of the year at the end of 2025 will be given by:
A=P(1+r/100)^n
where:
A=future value
P=principle
r=rate
n=number of terms
hence for the data given;
p=35000
R=5.5
n=(2025-2017)*2=16
Thus
A=35000(1+5.5/100)^16
A=$82, 434. 20
5 0
3 years ago
The data shown in the table below can be
kvv77 [185]

Answer:

6: 12

7: 14

8: 16

Step-by-step explanation:

You do the last (y) term given [18] minus the first (y) term [10] given divided by how many terms it takes to get from the last (y) term given minus the first (y) term given [4]. So the equation looks like this:

(18 - 10)/4= 8/4 = 2

4 0
2 years ago
The opening balance of the March billing cycle for Bernice's credit card was $2374. If she makes a new purchase of $200 on the 2
Norma-Jean [14]

The opening balance of the March billing cycle for Bernice's credit card = $2374.

Amount of new purchase = $200 on the 20th of March.

She did purchase only of $200 in that March month.

We are given that she didn't do any payment.

So, still she has balance $2374 till end of the month.

Therefore, her average daily balance is $2374.00

So, the correct option is  B. $2374.00.

4 0
3 years ago
Read 2 more answers
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