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slamgirl [31]
3 years ago
15

The sum of two numbers is 68. Their difference is 15. Write a system of equations you could use to solve this problem.

Mathematics
1 answer:
SashulF [63]3 years ago
8 0

Answer:

x+y=68

x-y=15

Step-by-step explanation:

A "sum" means that we will be using addition, while a "difference" indicates subtraction. Anytime we have two unknown numbers we generally use "x" and "y".

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A chain weighs 10 pounds per foot. How many ounces will 3 inches weigh?
KengaRu [80]

Answer:

40 ounces

Step-by-step explanation:

One foot = 12 inches

3 inches is 1/4 of a foot

Divide 10 pounds by 4 to get 2.5 pounds

Convert to ounces

3 0
3 years ago
PLSSSSSSSSSSSSSSS HELP ME WITH THIS QUESTION ASAP​
DedPeter [7]

Answer:

-23, 9, -11, 21

Step-by-step explanation:

it ia pretty simple my guy. All you neee to do is subsitute the numbers for the X on the left-side

8 0
3 years ago
Read 2 more answers
or security​ reasons, a company will enclose a rectangular area of 11,200 m2 in the rear of its plant. One side will be bounded
pychu [463]

The dimensions of the rectangle are 150 m and 75 m respectively.

Let x be the length of the rectangular area and y be the width of the rectangular area.

Its area A = xy

Given that its area is 11,000 m², xy = 11000 m² (1)

Also, since the bounding side of the building is 150 m long and the fencing is 300 m, the perimeter of the rectangular area is P = 150 m + 300 m = 450 m.

Also, the perimeter of the rectangular area is P = 2(x + y)

Since P = 450 m

2(x + y) = 450 m

x + y = 225 m (2)

Since the bounding side of the building represents one dimension of the rectangle, x = 150 m.

Substituting x into (2), we get the other dimension

x + y = 225

150 + y = 225

y = 225 m - 150 m

y = 75 m

So, the dimensions of the rectangle are 150 m and 75 m respectively.

Learn more about dimensions of a rectangular area here:

brainly.com/question/16818606

4 0
3 years ago
Please help me with this.
Nastasia [14]
C,2 I agree with what the other comment said!!
3 0
3 years ago
A cable company had 260 subscibers.The ratio of regular subscribers to premium subscribers was 10:3.How many regular subscribers
elena-s [515]
The answer is 200 regular subscribers.

3×20=60 (Premium)
10×20=200 (Regular)
+--------
260 Subscribers

Don't feel afraid to ask more questions I find them fun to answer~!
4 0
3 years ago
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