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Masja [62]
3 years ago
7

Kim decides to give her old toys to her younger cousins. She gives her cousin Sarah 2/3. Then, she gives her cousin Ryan 2/5 of

the remaining toys. She has 6 toys left. How many toys did Kim have to begin
Mathematics
1 answer:
KatRina [158]3 years ago
3 0

Answer:

30

Step-by-step explanation:

Work backwards:

  • 6 is 3/5 of a number, and that number is 10
  • 10 is 1/3 of a number, and that number is 30

Check your work:

  • 2/3 of 30=20 toy to Sarah
  • 30-20=10 toys left
  • 2/5 of 10=4 toys to Ryan
  • 10-4=6 toys left
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B) What should be subtracted from -7mn + 2m² + 3n² to get<br>m²+ 2mn + n²?<br>please help​
Hitman42 [59]

Answer: m²-9mn+2n²

Step-by-step explanation: make use of BODMAS strategy. Let the unknown be x.

-7mn+2m²+3n²-x= m²+2mn+n². Since we are concerned about getting the unknown,let's try to collect the like terms.

-7mn+2m²+3n²-(m²+2mn+n²)= x

-7mn+2m²+3n²-m²-2mn-n²= x

-7mn-2mn+2m²-m²+3n²-n²=x

-9mn+m²+2mn= x

X= m²-9mn+2n²

6 0
4 years ago
Which of the following absolute value equations has no solutions?Group of answer choices
Amiraneli [1.4K]

The absolute value measures the distance a number is away from the origin (zero) on the number line. A number can be to the left or right of zero on the number line, but the distance away from zero is always positive. Graphically:

In other words:

• If d is positive and

\begin{gathered} |x|=d \\ \text{ then} \\ x=d\text{ or }x=-d \end{gathered}

• If d is negative and

\begin{gathered} |x|=-d \\ \text{then} \\ \text{ No solution, because distance (d) can not be negative.} \end{gathered}

Therefore, the equation that has no solutions is:

\boldsymbol{|x|=-3}

3 0
1 year ago
Hurry ASAP I need help on 3 and 4
attashe74 [19]

Answer:

3.B

4.A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve the inequality for x+9&lt;10
Strike441 [17]

Answer:

x < 1

Step-by-step explanation:

x+9<10

Subtract 9 from each side

x+9-9<10-9

x < 1

7 0
3 years ago
Finf the diffrence write your answer in simplest form 2/7+2/5
Fed [463]
The difference (the answer of a subtraction problem) is:
2/7 - 2/5  -->  10/35 - 14/35 = -4/35

The answer sum (the answer of an addition problem) is:
2/7 + 2/5  -->  10/35 + 14/35 = 24/35

Hope this helps.
4 0
3 years ago
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