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meriva
3 years ago
5

Explain how can 9×1/4=2 1/2

Mathematics
1 answer:
Art [367]3 years ago
8 0
It can't. 9 x 1/4 = 2 and 1/4. The equation in the question is a false statement.
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Their sum is −7 and their difference is 14 what are my numbers
Mashcka [7]

Answer:

Answer: 3 1/2 and -10 1/2 are the two numbers.

Step-by-step explanation:

Let x and y be the two unknown numbers.

x+y=-7 [Given]

x-y=14 [Given]

x-y=14 [Given]

x=y+14 [Add y to both sides]

x+y=-7 [Given]

(y+14)+y=-7 [Subtitution]

2y+14=-7 [Combine like terms]

2y=-21 [Subtract 14 from both sides]

y=-21/2 [Divide both sides by 2]

y=-10 1/2 [Division]

x-y=14 [Given]

x=y+14 [Add y to both sides]

x=-10 1/2 + 14 [Substitution]

x= 3 1/2 [Addition]

Check:

x+y=-7 [Given]

3 1/2 + -10 1/2?=-7 [Substition]

-7=-7 [Addition]

QED

x-y=14 [Given]

3 1/2 - -10 1/2?=14 [Substitution]

3 1/2 + 10 1/2?=14 [Change the sign of the subtrahend and add]

14=14 [Addition]

QED

Answer: 3 1/2 and -10 1/2 are the two numbers.

8 0
3 years ago
What’s the answer to number 1?
Darya [45]

Answer:

increase = New number - original number

inc % = (increase ÷ original number) *100%

Step-by-step explanation:

133 - 76 = 56

inc % = 57 ÷ 76 = 0.75

0.75*100% = 75%

7 0
2 years ago
Tegan needs to make 68 more snow blocks to finish building an igloo. Write an equation for the number of blocks Tegan still need
Fynjy0 [20]
68-33 blockers ?????????????????????????????????????????!?!!
5 0
3 years ago
Read 2 more answers
Use the slope intercept form to write an equation
postnew [5]
Given:

Slope = -3/5

y - intercept = (0 , 5)

The answer is y = -3/5 + 5

Note:

The x = 0 and the y = 5 . We are looking for y- intercept so we use 5 instead of 0. 

Since the formula for slope intercept form is y = mx + b, we use option number 4 as our equation. for option number 1, it did not include the negative sign that was given in the slope so we opt to choose option 1. 

3 0
3 years ago
Read 2 more answers
Solve for y. <br><br> 3y – 12 = –30 A. –6 B. 32 C. –2 D. 2
kogti [31]
3y-12=-30
3y=-30+12
3y=-18
y=-18/3
y=-6.
Answer: A. 
6 0
3 years ago
Read 2 more answers
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