use elimination method to solve the system of equations -x+y=7 and x+y=1

Answer:

C

Step-by-step explanation:

since there cant be technically half of someone (i hope not) the domain has to be "whole numbers". hours can be split, so they are "all numbers". well, looking at it again, it is C, since the others can not possibly be correct.

9514 1404 393

Answer:

  A, B, D

Step-by-step explanation:

For appropriate values of 'a', the log function has the following characteristics:

Any log function will tend toward negative infinity as x tends to zero (for |a|>1).

Answer:

250

Step-by-step explanation:

B times height = volume add the Base and the width at the bottom (10 times 5 =50) 50 is the B and then multiply by the height (5) so 50 times 5 is 250. Ez

Answer: This makes no sense whatsoever. How would we know how many apples their were simply from the fact there are 44 oranges???  Was there more info we missed???

Step-by-step explanation:

Answer:

For 6 bagels it would be $2.50,  and you can buy 120 bagels for $50

Step-by-step explanation:

Answer:

Part A: B) 3

Part B: $40

4. -1

7. 5x + 6y

8. Part A: y = 20x

8. Part B: $300

9. e > 12000 pounds

Step-by-step explanation:

Part A: x = 5t + 5

20 = 5t +5

15 = 5t

t = 3

Part B: x = 5t + 5

x = 5(7) + 5

x = 35 +5

x = 40

4. 24 - 5^2

24 - (5*5)

24 - 25 = -1

7. 2x + 4y + 5 + 2y - 5 + 3x

2x + 3x = 5x

4y + 2y = 6y

5 + (-5) = 0

5x + 6y

8. Part A:

Total = y

Lawns = x

Amount = $20

so y = 20x

8. Part B:

y = 20x

y = 20(15)

y = 300

9. The elephant weighs more than 12000 pounds

Elephant = e

More than =  >

Pounds = 12000

e > 12000 pounds

Answer:

Mean: 83.571428571429

Median: 85

Mode: 70

Step-by-step explanation:

The mean is the same as the average value of a data set and is found using a calculation. Add up all of the numbers and divide by the number of numbers in the data set.

The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median. If there are 2 numbers in the middle, the median is the average of those 2 numbers.

The mode is the number in a data set that occurs most frequently. Count how many times each number occurs in the data set. The mode is the number with the highest tally. It's ok if there is more than one mode. And if all numbers occur the same number of times there is no mode.

Answer:

Median 85

Mode 70

Mean 83.571 rounded = 83.6

Answer: The answer is 8.06.

Step-by-step explanation:

First, write the Pythagorean Theorem. c^2 = a^2 + b^2

Next, determine the values of (a,b,c) for the Pythagorean Theorem.

Answer:

Heather paid $26.25 for both items

Answer:

14x + 42y

Step-by-step explanation:

7x2=14

7x6=42

14x + 42y

Answer:

A. Banana to grape this should be right

Answer:

Equation: x=2

Solution = 2

Step-by-step explanation:

add like terms so regular numbers like -5 and -3. Add positive 5 to 3 to get 2

And next the variables -2x+3x= x

Answer:

im pretty sure it  £8.01

Step-by-step explanation:

Answer:

8.1

Step-by-step explanation:

[tex]\frac{3.60}{4} = 0.9[/tex] `

So the price of one pair of socks is 0.9.

[tex]9 * 0.9 = 8.1[/tex]

This is your final answer.

Answer:

1:5 is the ratio so 1 cow for every 5 sheep, 2 cows for 10 sheep and 3 cows for 15 sheep.

Step-by-step explanation:

Answer:

Area = 9 cm²

Step-by-step explanation:

The shape given is a kite.

Area of a kite = ½(D1*D2)

Where,

D1 = 6 cm

D2 = 3 cm

Therefore:

Area = ½(6*3)

Area = ½(18)

Area = 9 cm²

Answer:

115.2 total marks.

Step-by-step explanation:

If 72 is only 60% of the total marks, then to find the total number of marks we will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

The total number of marks in the test ​ is 115.2 total marks.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We have been given that paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks.

When 72 is only 60% of the total marks, then to find the total number of marks.

We will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

Then, 72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

Hence, The total number of marks in the test ​ is 115.2 total marks.

Learn more about the unitary method;

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Answer:

20%

Step-by-step explanation:

Answer:

is 5

Step-by-step explanation:

don't have no explanation but I got the answer from freckle

Answer:

D

Step-by-step explanation:

Edg

Answer:

I have a document with examples, do you wanna it?

Step-by-step explanation:

Answer:

a = 8

Step-by-step explanation:

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other.

Divide 4 from both sides of the equation:

(4a)/4 = (32)/4

a = 32/4

a = 8

8 is your answer for a.

~

Answer: width = 1.1 meters

Step-by-step explanation:

The length of Rectangle garage =6.6m

Width = 6 times shorter than length

Therefore width = 6.6/ 6

= 1.1 m

Answer:

1.1

Step-by-step explanation:

Answer:

(5/2,2)

Step-by-step explanation:

3+2/2,0+4/2

5/2,4/2

5/2,2

(4,-4) is the answer

Answer:

64 cups of flour

Step-by-step explanation:

2.5 times 6.4 =16 so then use that same multiple 6.4 times 10 =64