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larisa86 [58]
3 years ago
14

Solve these by elimination

Mathematics
1 answer:
Maurinko [17]3 years ago
6 0
-4*2-2*2=-12
4*-2+(8*-2)=-24
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Solve A=p+prt for r.
Furkat [3]

A = p + prt

The above equation can be solved for “r” in such a way.

Subtract “p” from both sides;

A – p = p + prt – p

A – p = prt

Divide both sides by “p” and “t”;

A/pt – p/pt = prt/pt

A/pt – 1/t = r

Or

<span>r =  A/pt – 1/t</span>

3 0
3 years ago
A european business has offered to donate to the Salvation Army, but they are requiring a detailed report on expenditures. Chase
dedylja [7]

Answer:

Both processes are correct.

Step-by-step explanation:

Let the mile taken by Chase be 10miles .

He doubles it so it will be 20 and

20% of 20 will be 4

20-4 = 16km

Now Alex operations

(10/5 )*8 = 2*8= 16 km

In both cases the answer will be the same

1 mile = 1.60034 km

Now 10 miles = 16.00 34 km

which is the same as above.

Both the processes are correct.

7 0
3 years ago
I need this ASAP!!<br><br><br> calculate the rate of change on this graph
Vilka [71]

Answer: The slope is 2

Step-by-step explanation: For questions like these, find 2 points on the graph that are on whole numbers, for example (10,60) and (20,80). Then use the formula y2-y1/x2-x1 to solve for the slope, which would be the same thing as rate of change. 80-60/20-10 which equals 2. The slope would be 2.

8 0
3 years ago
PLEASE HELP QUICK I HAVE 10 MINUTES
Vlad1618 [11]

Answer:

56.58j = c

Step-by-step explanation:

c = cost

5 0
2 years ago
Your car averages 380 miles on a 14-gallon tank of gas. you run out of gas on a deserted highway, but have a half gallon of lawn
Eva8 [605]
380/14= 27.14 miles per gallon
27.14/2=13.57 miles
they wont reach the gas station
4 0
3 years ago
Read 2 more answers
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