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lana [24]
3 years ago
10

-2 + (-7) = Help please

Mathematics
1 answer:
Goshia [24]3 years ago
7 0

Answer:

That would be -5

Step-by-step explanation:

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Solve for L. E=250M/L
Alisiya [41]

Answer:

Step-by-step explanation:

I don’t know

7 0
4 years ago
Solve the following system of equations using the elimination method. 5x – 5y = 10 6x – 4y = 4
tresset_1 [31]

Answer:

x=-2,y=-4

Step-by-step explanation:

By dividing to lowest terms

5x – 5y = 10= x-y=2.......(1)

6x – 4y = 4=3x-2y=2........(2)

By elimination method

Multiply equation (1) by 3 so as to correspond with equation (2)

3(x-y)=3(2)

3x-3y=6..........(3)

Multiply equation (2) by 1 so as to correspond with equation (1)

1(3x-2y)=1(2)

3x-2y=2..........(4)

Then equation (3)-equation (4)

(3x-3y=6)

-

(3x-2y=2)

__________

-y=4

y=-4

Substitute y=-4 into equation(1)

x-(-4)=2

x+4=2

x=-2

Therefore x=-2,y=-4

8 0
3 years ago
A 90 pound object on earth weighs 15 pounds on the moon if an object weighs 156 pounds on earth how much is a win the moon
Tanya [424]
26 pounds

Because

E is the objects gravity in earth
M objects gravity on moon

E=km
Or
90=15k

90/15=15k/15

6=k

156=6m

156/6 =6m/6

26=m

Have a great day
7 0
3 years ago
1,870 /210 = x what is x?
katrin2010 [14]
X = 8.904 or 187/21 (hope this helps)
3 0
3 years ago
1+1 please help the calculator won’t give me a direct answer :(
AlekseyPX

Answer:

2

Step-by-step explanation:

this took me 2years to solve

8 0
3 years ago
Read 2 more answers
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